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sn74avch4t245 sces577e ? june 2004 ? revised november 2015 sn74avch4t245 4-bit dual-supply bus transceiver with configurable level-shifting, voltage translation, and 3-state outputs 1 features 3 description this 4-bit noninverting bus transceiver uses two 1 ? control inputs v ih /v il levels are referenced to separate configurable power-supply rails. the a port v cca voltage is designed to track v cca . v cca accepts any supply ? fully configurable dual-rail design allows each voltage from 1.2 v to 3.6 v. the b port is designed to port to operate over the full 1.2v to 3.6v power- track v ccb . v ccb accepts any supply voltage from 1.2 supply range v to 3.6 v. the sn74avch4t245 is optimized to operate with v cca /v ccb set at 1.4 v to 3.6 v. it is ? i/os are 4.6v tolerant operational with v cca /v ccb as low as 1.2 v. this ? i off supports partial power-down-mode operation allows for universal low voltage bidirectional ? bus hold on data inputs eliminates the need for translation between any of the 1.2v, 1.5v, 1.8v, 2.5v, external pull-up/pull-down resistors and 3.3v voltage nodes. ? max data rates the sn74avch4t245 is designed for asynchronous ? 380 mbps (1.8 v to 3.3 v translation) communication between two data buses. the logic levels of the direction-control (dir) input and the ? 200 mbps ( < 1.8 v to 3.3 v translation) output-enable ( oe) input activate either the b-port ? 200 mbps (translate to 2.5 v or 1.8 v) outputs or the a-port outputs or place both output ? 150 mbps (translate to 1.5 v) ports into the high-impedance mode. the device transmits data from the a bus to the b bus when the ? 100 mbps (translate to 1.2 v) b-port outputs are activated, and from the b bus to ? latch-up performance exceeds 100 ma per the a bus when the a-port outputs are activated. the jesd 78, class ii input circuitry on both a and b ports is always active ? esd protection exceeds jesd 22 and must have a logic high or low level applied to prevent excess i cc and i ccz . ? 8000 v human body model (a114-a) ? 200 v machine model (a115-a) the sn74avch4t245 device control pins (1dir, 2dir, 1oe, and 2oe) are supplied by v cca . ? 1000 v charged-device model (c101) this device is fully specified for partial-power-down 2 applications applications using i off . the i off circuitry disables the outputs, preventing damaging current backflow ? personal electronics through the device when it is powered down. ? industrial ? enterprise device information (1) ? telecom part number package body size (nom) uqfn (16) 1.80 mm 2.60 mm logic diagram (positive logic) for 1/2 of vqfn (16) 3.50 mm 4.00 mm avch4t245 sn74avch4t245 tvsop (16) 4.40 mm 3.60 mm tssop (16) 4.40 mm 5.00 mm soic (16) 3.91 mm 9.90 mm (1) for all available packages, see the orderable addendum at the end of the data sheet. 1 an important notice at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. production data. dir oe a1 a2 b1 b2 productfolder sample &buy technical documents tools & software support &community
sn74avch4t245 sces577e ? june 2004 ? revised november 2015 www.ti.com table of contents 1 features .................................................................. 1 9 detailed description ............................................ 17 9.1 overview ................................................................. 17 2 applications ........................................................... 1 9.2 functional block diagram ....................................... 17 3 description ............................................................. 1 9.3 feature description ................................................. 17 4 revision history ..................................................... 2 9.4 device functional modes ........................................ 18 5 description (continued) ......................................... 3 10 application and implementation ........................ 19 6 pin configuration and functions ......................... 4 10.1 application information .......................................... 19 7 specifications ......................................................... 5 10.2 typical application ............................................... 19 7.1 absolute maximum ratings ..................................... 5 11 power supply recommendations ..................... 21 7.2 esd ratings .............................................................. 5 12 layout ................................................................... 21 7.3 recommended operating conditions ...................... 5 12.1 layout guidelines ................................................. 21 7.4 thermal information .................................................. 6 12.2 layout example .................................................... 22 7.5 electrical characteristics ........................................... 7 13 device and documentation support ................. 23 7.6 switching characteristics, v cca = 1.2 v ................... 9 13.1 documentation support ........................................ 23 7.7 switching characteristics, v cca = 1.5 v 0.1 v ..... 10 13.2 community resources .......................................... 23 7.8 switching characteristics, v cca = 1.8 v 0.15 v ... 11 13.3 trademarks ........................................................... 23 7.9 switching characteristics, v cca = 2.5 v 0.2 v ..... 12 13.4 electrostatic discharge caution ............................ 23 7.10 switching characteristics, v cca = 3.3 v 0.3 v ... 13 13.5 glossary ................................................................ 23 7.11 operating characteristics ...................................... 14 14 mechanical, packaging, and orderable 7.12 typical characteristics .......................................... 15 information ........................................................... 23 8 parameter measurement information ................ 16 4 revision history note: page numbers for previous revisions may differ from page numbers in the current version. changes from revision d (june 2007) to revision e page ? added esd ratings table, feature description section, device functional modes , application and implementation section, power supply recommendations section, layout section, device and documentation support section, and mechanical, packaging, and orderable information section .................................................................................................. 1 ? changed pin functions table. ............................................................................................................................................... 4 2 submit documentation feedback copyright ? 2004 ? 2015, texas instruments incorporated product folder links: sn74avch4t245
sn74avch4t245 www.ti.com sces577e ? june 2004 ? revised november 2015 5 description (continued) the v cc isolation feature ensures that if either v cc input is at gnd, then both ports are in the high-impedance state. the bus-hold circuitry on the powered-up side always stays active. active bus-hold circuitry holds unused or undriven data inputs at a valid logic state. use of pull-up or pull-down resistors with the bus-hold circuitry is not recommended. the bus-hold circuitry on the powered-up side always stays active. to ensure the high-impedance state during power up or power down, oe should be tied to v cc through a pull-up resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. copyright ? 2004 ? 2015, texas instruments incorporated submit documentation feedback 3 product folder links: sn74avch4t245
sn74avch4t245 sces577e ? june 2004 ? revised november 2015 www.ti.com 6 pin configuration and functions d, dgv, or pw packages rsv package 16-pin soic, tvsop, or tssop 16-pin uqfn top view top view rgy package 16-pin vqfn top view pin functions pin i/o description soic, tvsop, name uqfn tssop, vqfn 1a1 4 6 i/o input/output 1a1. referenced to v cca . 1a2 5 7 i/o input/output 1a2. referenced to v cca . 1b1 13 15 i/o input/output 1b1. referenced to v ccb . 1b2 12 14 i/o input/output 1b2. referenced to v ccb . 1dir 2 4 i direction-control input for 1 ports 3-state output-mode enables. pull oe high to place ? 1 ? outputs in 3-state mode. 1 oe 15 1 i referenced to v cca . 2a1 6 8 i/o input/output 2a1. referenced to v cca . 2a2 7 9 i/o input/output 2a2. referenced to v cca . 2b1 11 13 i/o input/output 2b1. referenced to v ccb . 2b2 10 12 i/o input/output 2b2. referenced to v ccb . 2dir 3 5 i direction-control input for 2 ports 3-state output-mode enables. pull oe high to place 2 outputs in 3-state mode. 2 oe 14 16 i referenced to v cca . gnd 8, 9 10, 11 ? ground v cca 1 3 ? a-port power supply voltage. 1.2 v v cca 3.6 v v ccb 16 2 ? b-port power supply voltage. 1.2 v v ccb 3.6 v 4 submit documentation feedback copyright ? 2004 ? 2015, texas instruments incorporated product folder links: sn74avch4t245 1 16 8 9 23 4 5 6 7 1514 13 12 11 10 1oe 2oe 1b11b2 2b1 2b2 1dir2dir 1a11a2 2a1 2a2 gnd v gnd ccb v cca 1oe 2oe 1b11b2 2b1 2dir 1a1 1a2 2a1 v ccb 1dir v cca 4 3 2 1 2b22a2 gndgnd 11 10 9 12 16 15 14 13 5 6 7 8 12 3 4 5 6 7 8 1615 14 13 12 11 10 9 v cca 1dir2dir 1a11a2 2a1 2a2 gnd v ccb 1oe 2oe 1b11b2 2b1 2b2 gnd
sn74avch4t245 www.ti.com sces577e ? june 2004 ? revised november 2015 7 specifications 7.1 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) (1) min max unit v cca supply voltage ? 0.5 4.6 v v ccb supply voltage ? 0.5 4.6 v i/o ports (a port) ? 0.5 4.6 v i input voltage (2) i/o ports (b port) ? 0.5 4.6 v control inputs ? 0.5 4.6 a port ? 0.5 4.6 voltage applied to any output v o v in the high-impedance or power-off state (2) b port ? 0.5 4.6 a port ? 0.5 v cca + 0.5 voltage applied to any output v o v in the high or low state (2) (3) b port ? 0.5 v ccb + 0.5 i ik input clamp current v i < 0 ? 50 ma i ok output clamp current v o < 0 ? 50 ma i o continuous output current 50 ma continuous current through v cca , v ccb , or gnd 100 ma t stg storage temperature ? 65 150 c (1) stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions . exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) the input voltage and output negativevoltage ratings may be exceeded if the input and output current ratings are observed. (3) the output positivevoltage rating may be exceeded up to 4.6v maximum if the output current rating is observed. 7.2 esd ratings value unit human body model (hbm), per ansi/esda/jedec js-001 (1) 8000 v (esd) electrostatic discharge charged-device model (cdm), per jedec specification jesd22-c101 (2) 1000 v machine model 200 (1) jedec document jep155 states that 500v hbm allows safe manufacturing with a standard esd control process. (2) jedec document jep157 states that 250v cdm allows safe manufacturing with a standard esd control process. 7.3 recommended operating conditions see (1) (2) (3) (4) (5) v cci v cco min max unit v cca supply voltage 1.2 3.6 v v ccb supply voltage 1.2 3.6 v 1.2 v to 1.95 v v cci 0.65 high-level v ih data inputs (4) 1.95 v to 2.7 v 1.6 v input voltage 2.7 v to 3.6 v 2 1.2 v to 1.95 v v cci 0.35 low-level v il data inputs (4) 1.95 v to 2.7 v 0.7 v input voltage 2.7 v to 3.6 v 0.8 1.2 v to 1.95 v v cca 0.65 high-level dir v ih 1.95 v to 2.7 v 1.6 v input voltage (referenced to v cca ) (5) 2.7 v to 3.6 v 2 (1) v cci is the v cc associated with the input port. (2) v cco is the v cc associated with the output port. (3) all unused data inputs of the device must be held at v cci or gnd to ensure proper device operation. refer to the ti application report, implications of slow or floating cmos inputs , literature number scba004. (4) for v cci values not specified in the data sheet, v ih min = v cci 0.7 v, v il max = v cci 0.3 v. (5) for v cca values not specified in the data sheet, v ih min = v cca 0.7 v, v il max = v cca 0.3 v. copyright ? 2004 ? 2015, texas instruments incorporated submit documentation feedback 5 product folder links: sn74avch4t245
sn74avch4t245 sces577e ? june 2004 ? revised november 2015 www.ti.com recommended operating conditions (continued) see (1) (2) (3) (4) (5) v cci v cco min max unit 1.2 v to 1.95 v v cca 0.35 low-level dir v il 1.95 v to 2.7 v 0.7 v input voltage (referenced to v cca ) (5) 2.7 v to 3.6 v 0.8 v i input voltage 0 3.6 v active state 0 v cco v o output voltage v 3-state 0 3.6 1.2 v ? 3 1.4 v to 1.6 v ? 6 i oh high-level output current 1.65 v to 1.95 v ? 8 ma 2.3 v to 2.7 v ? 9 3 v to 3.6 v ? 12 1.2 v 3 1.4 v to 1.6 v 6 i ol low-level output current 1.65 v to 1.95 v 8 ma 2.3 v to 2.7 v 9 3 v to 3.6 v 12 t/ v input transition rise or fall rate 5 ns/v t a operating free-air temperature ? 40 85 c 7.4 thermal information sn74avch4t245 d (soic) dgv pw rgy rsv thermal metric (1) unit (tvsop) (tssop) (vqfn) (uqfn) 16 pins 16 pins 16 pins 16 pins 16 pins r ja junction-to-ambient thermal resistance (2) 85.5 126.0 112.0 37.5 146.9 c/w r jc(top) junction-to-case (top) thermal resistance 46.9 50.8 46.8 54.5 53.6 c/w r jb junction-to-board thermal resistance 43.0 57.7 57.1 15.6 75.6 c/w jt junction-to-top characterization parameter 13.4 5.7 5.7 0.5 13.5 c/w jb junction-to-board characterization parameter 42.7 57.2 56.5 15.8 75.6 c/w r jc(bot) junction-to-case (bottom) thermal resistance ? ? ? 3.5 ? c/w (1) for more information about traditional and new thermal metrics, see the semiconductor and ic package thermal metrics application report, spra953 . (2) the package thermal impedance is calculated in accordance with jesd 51-7. 6 submit documentation feedback copyright ? 2004 ? 2015, texas instruments incorporated product folder links: sn74avch4t245
sn74avch4t245 www.ti.com sces577e ? june 2004 ? revised november 2015 7.5 electrical characteristics all typical limits apply over t a = 25 c, and all maximum and minimum limits apply over t a = ? 40 c to 85 c (unless otherwise noted). (1) (2) parameter test conditions min typ max unit i oh = ? 100 a; v cca = 1.2 v to 3.6 v; v ccb = 1.2 v to 3.6 v cco ? 0.2 v; v i = v ih i oh = ? 3 ma; v cca = 1.2 v; v ccb = 1.2 v; v i = v ih 0.95 i oh = ? 6 ma; v cca = 1.4 v; v ccb = 1.4 v; v i = v ih 1.05 v oh v i oh = ? 8 ma; v cca = 1.65 v; v ccb = 1.65 v; v i = v ih 1.2 i oh = ? 9 ma; v cca = 2.3 v; v ccb = 2.3 v; v i = v ih 1.75 i oh = ? 12 ma; v cca = 3 v; v ccb = 3 v; v i = v ih 2.3 i ol = 100 a; v cca = 1.2 v to 3.6 v; v ccb = 1.2 v to 3.6 v; 0.2 v i = v il i ol = 3 ma; v cca = 1.2 v; v ccb = 1.2 v; v i = v il 0.15 i ol = 6 ma; v cca = 1.4 v; v ccb = 1.4 v; v i = v il 0.35 v ol v i ol = 8 ma; v cca = 1.65 v; v ccb = 1.65 v; v i = v il 0.45 i ol = 9 ma; v cca = 2.3 v; v ccb = 2.3 v; v i = v il 0.55 i ol = 12 ma; v cca = 3 v; v ccb = 3 v; v i = v il 0.7 t a = 25 c 0.025 0.25 v i = v cca or gnd; v cca = 1.2 v to 3.6 i i dir input a t a = ? 40 c to v; v ccb = 1.2 v to 3.6 v 1 85 c v i = 0.42 v; v cca = 1.2 v; v ccb = 1.2 v 25 v i = 0.49 v; v cca = 1.4 v; v ccb = 1.4 v 15 i bhl (3) v i = 0.58 v; v cca = 1.65 v; v ccb = 1.65 v 25 a v i = 0.7 v; v cca = 2.3 v; v ccb = 2.3 v 45 v i = 0.8 v; v cca = 3.3 v; v ccb = 3.3 v 100 v i = 0.78 v; v cca = 1.2 v; v ccb = 1.2 v ? 25 v i = 0.91 v; v cca = 1.4 v; v ccb = 1.4 v ? 15 i bhh (4) v i = 1.07 v; v cca = 1.65 v; v ccb = 1.65 v ? 25 a v i = 1.6 v; v cca = 2.3 v; v ccb = 2.3 v ? 45 v i = 2 v; v cca = 3.3 v; v ccb = 3.3 v ? 100 v cca = 1.2 v; 50 v ccb = 1.2 v v cca = 1.6 v; 125 v ccb = 1.6 v v cca = 1.95 v; i bhlo (5) v i = 0 to v cci 200 a v ccb = 1.95 v v cca = 2.7 v; 300 v ccb = 2.7 v v cca = 3.6 v; 500 v ccb = 3.6 v (1) v cco is the v cc associated with the output port. (2) v cci is the v cc associated with the input port. (3) the bus-hold circuit can sink at least the minimum low sustaining current at v il max. i bhl should be measured after lowering v in to gnd and then raising it to v il max. (4) the bus-hold circuit can source at least the minimum high sustaining current at v ih min. i bhh should be measured after raising v in to v cc and then lowering it to v ih min. (5) an external driver must source at least i bhlo to switch this node from low to high. copyright ? 2004 ? 2015, texas instruments incorporated submit documentation feedback 7 product folder links: sn74avch4t245
sn74avch4t245 sces577e ? june 2004 ? revised november 2015 www.ti.com electrical characteristics (continued) all typical limits apply over t a = 25 c, and all maximum and minimum limits apply over t a = ? 40 c to 85 c (unless otherwise noted). (1) (2) parameter test conditions min typ max unit v cca = 1.2 v; ? 50 v ccb = 1.2 v v cca = 1.6 v; ? 125 v ccb = 1.6 v v cca = 1.95 v; i bhho (6) v i = 0 to v cci ? 200 a v ccb = 1.95 v v cca = 2.7 v; ? 300 v ccb = 2.7 v v cca = 3.6 v; ? 500 v ccb = 3.6 v v i or v o = 0 to 3.6 v; v cca = 0 v; v ccb t a = 25 c 0.1 1 = 0 v to 3.6 v a port t a = ? 40 c to 5 85 c i off a v i or v o = 0 to 3.6 v; v cca = 0 v to 3.6 t a = 25 c 0.1 1 v; v ccb = 0 v b port t a = ? 40 c to 5 85 c v o = v cco or gnd, v i = v cci or gnd; t a = 25 c 0.5 2.5 oe = v ih ; v cca = 3.6 v; v ccb = 3.6 v a or b port t a = ? 40 c to 5 85 c i oz (7) a v o = v cco or gnd, v i = v cci or gnd; oe = don ' t care; b port 5 v cca = 0 v; v ccb = 3.6 v v o = v cco or gnd, v i = v cci or gnd; oe = don ' t care; a port 5 v cca = 3.6 v; v ccb = 0 v v cca = 1.2 v to 3.6 vv ccb = 1.2 8 v to 3.6 v i cca v i = v cci or gnd, i o = 0 v cca = 0 v; v ccb a ? 2 = 3.6 v v cca = 3.6 v; 8 v ccb = 0 v v cca = 1.2 v to 3.6 vv ccb = 1.2 8 v to 3.6 v i ccb v i = v cci or gnd, i o = 0 v cca = 0 v; v ccb a 8 = 3.6 v v cca = 3.6 v; ? 2 v ccb = 0 v i cca + v i = v cci or gnd, i o = 0; v cca = 1.2 v to 3.6 v; v ccb = 16 a i ccb 1.2 v to 3.6 v c i control inputs v i = 3.3 v or gnd; v cca = 3.3 v; v ccb = 3.3 v 3.5 4.5 pf c io a or b port v o = 3.3 v or gnd; v cca = 3.3 v; v ccb = 3.3 v 6 7 pf (6) an external driver must sink at least i bhho to switch this node from high to low. (7) for i/o ports, the parameter i oz includes the input leakage current. 8 submit documentation feedback copyright ? 2004 ? 2015, texas instruments incorporated product folder links: sn74avch4t245
sn74avch4t245 www.ti.com sces577e ? june 2004 ? revised november 2015 7.6 switching characteristics, v cca = 1.2 v over recommended operating free-air temperature range (for parameter descriptions, see figure 3 ) from to parameter v ccb typ unit (input) (output) v ccb = 1.2 v 3.4 v ccb = 1.5 v 0.1 v 2.9 t plh , t phl a b v ccb = 1.8 v 0.15 v 2.7 ns v ccb = 2.5 v 0.2 v 2.6 v ccb = 3.3 v 0.3 v 2.8 v ccb = 1.2 v 3.6 v ccb = 1.5 v 0.1 v 3.1 t plh , t phl b a v ccb = 1.8 v 0.15 v 2.8 ns v ccb = 2.5 v 0.2 v 2.6 v ccb = 3.3 v 0.3 v 2.6 v ccb = 1.2 v 5.6 v ccb = 1.5 v 0.1 v 4.7 t pzh , t pzl oe a v ccb = 1.8 v 0.15 v 4.3 ns v ccb = 2.5 v 0.2 v 3.9 v ccb = 3.3 v 0.3 v 3.7 v ccb = 1.2 v 5 v ccb = 1.5 v 0.1 v 4.3 t pzh , t pzl oe b v ccb = 1.8 v 0.15 v 3.9 ns v ccb = 2.5 v 0.2 v 3.6 v ccb = 3.3 v 0.3 v 3.6 v ccb = 1.2 v 6.2 v ccb = 1.5 v 0.1 v 5.2 t phz , t plz oe a v ccb = 1.8 v 0.15 v 5.2 ns v ccb = 2.5 v 0.2 v 4.3 v ccb = 3.3 v 0.3 v 4.8 v ccb = 1.2 v 5.9 v ccb = 1.5 v 0.1 v 5.1 t phz , t plz oe b v ccb = 1.8 v 0.15 v 5 ns v ccb = 2.5 v 0.2 v 4.7 v ccb = 3.3 v 0.3 v 5.5 copyright ? 2004 ? 2015, texas instruments incorporated submit documentation feedback 9 product folder links: sn74avch4t245
sn74avch4t245 sces577e ? june 2004 ? revised november 2015 www.ti.com 7.7 switching characteristics, v cca = 1.5 v 0.1 v over recommended operating free-air temperature range (for parameter descriptions, see figure 3 ) from to parameter v ccb min typ max unit (input) (output) v ccb = 1.2 v 3.2 v ccb = 1.5 v 0.1 v 0.3 6.3 t phl , t plh a b v ccb = 1.8 v 0.15 v 0.3 5.2 ns v ccb = 2.5 v 0.2 v 0.4 4.2 v ccb = 3.3 v 0.3 v 0.4 4.2 v ccb = 1.2 v 3.3 v ccb = 1.5 v 0.1 v 0.7 6.3 t plh , t phl b a v ccb = 1.8 v 0.15 v 0.5 6 ns v ccb = 2.5 v 0.2 v 0.4 5.7 v ccb = 3.3 v 0.3 v 0.3 5.6 v ccb = 1.2 v 4.9 v ccb = 1.5 v 0.1 v 1.4 9.6 t pzh , t pzl oe a v ccb = 1.8 v 0.15 v 1.1 9.5 ns v ccb = 2.5 v 0.2 v 0.7 9.4 v ccb = 3.3 v 0.3 v 0.4 9.4 v ccb = 1.2 v 4.5 v ccb = 1.5 v 0.1 v 1.4 9.6 t pzh , t pzl oe b v ccb = 1.8 v 0.15 v 1.1 7.7 ns v ccb = 2.5 v 0.2 v 0.9 5.8 v ccb = 3.3 v 0.3 v 0.9 5.6 v ccb = 1.2 v 5.6 v ccb = 1.5 v 0.1 v 1.8 10.2 t phz , t plz oe a v ccb = 1.8 v 0.15 v 1.5 10.2 ns v ccb = 2.5 v 0.2 v 1.3 10.2 v ccb = 3.3 v 0.3 v 1.6 10.2 v ccb = 1.2 v 5.2 v ccb = 1.5 v 0.1 v 1.9 10.3 t phz , t plz oe b v ccb = 1.8 v 0.15 v 1.9 9.1 ns v ccb = 2.5 v 0.2 v 1.4 7.4 v ccb = 3.3 v 0.3 v 1.2 7.6 10 submit documentation feedback copyright ? 2004 ? 2015, texas instruments incorporated product folder links: sn74avch4t245
sn74avch4t245 www.ti.com sces577e ? june 2004 ? revised november 2015 7.8 switching characteristics, v cca = 1.8 v 0.15 v over recommended operating free-air temperature range (for parameter descriptions, see figure 3 ) from to parameter v ccb min typ max unit (input) (output) v ccb = 1.2 v 2.9 v ccb = 1.5 v 0.1 v 0.1 6 t plh , t phl a b v ccb = 1.8 v 0.15 v 0.1 4.9 ns v ccb = 2.5 v 0.2 v 0.1 3.9 v ccb = 3.3 v 0.3 v 0.3 3.9 v ccb = 1.2 v 3 v ccb = 1.5 v 0.1 v 0.6 5.3 t plh , t phl b a v ccb = 1.8 v 0.15 v 0.5 4.9 ns v ccb = 2.5 v 0.2 v 0.3 4.6 v ccb = 3.3 v 0.3 v 0.3 4.5 v ccb = 1.2 v 4.4 v ccb = 1.5 v 0.1 v 1 7.4 t pzh , t pzl oe a v ccb = 1.8 v 0.15 v 1 7.3 ns v ccb = 2.5 v 0.2 v 0.6 7.3 v ccb = 3.3 v 0.3 v 0.4 7.2 v ccb = 1.2 v 4.1 v ccb = 1.5 v 0.1 v 1.2 9.2 t pzh , t pzl oe b v ccb = 1.8 v 0.15 v 1 7.4 ns v ccb = 2.5 v 0.2 v 0.8 5.3 v ccb = 3.3 v 0.3 v 0.8 4.6 v ccb = 1.2 v 5.4 v ccb = 1.5 v 0.1 v 1.6 8.6 t phz , t plz oe a v ccb = 1.8 v 0.15 v 1.8 8.7 ns v ccb = 2.5 v 0.2 v 1.3 8.7 v ccb = 3.3 v 0.3 v 1.6 8.7 v ccb = 1.2 v 5 v ccb = 1.5 v 0.1 v 1.7 9.9 t phz , t plz oe b v ccb = 1.8 v 0.15 v 1.6 8.7 ns v ccb = 2.5 v 0.2 v 1.2 6.9 v ccb = 3.3 v 0.3 v 1 6.9 copyright ? 2004 ? 2015, texas instruments incorporated submit documentation feedback 11 product folder links: sn74avch4t245
sn74avch4t245 sces577e ? june 2004 ? revised november 2015 www.ti.com 7.9 switching characteristics, v cca = 2.5 v 0.2 v over recommended operating free-air temperature range (for parameter descriptions, see figure 3 ) from to parameter v ccb min typ max unit (input) (output) v ccb = 1.2 v 2.8 v ccb = 1.5 v 0.1 v 0.1 5.7 t plh , t phl a b v ccb = 1.8 v 0.15 v 0.1 4.6 ns v ccb = 2.5 v 0.2 v 0.2 3.5 v ccb = 3.3 v 0.3 v 0.1 3.6 v ccb = 1.2 v 2.7 v ccb = 1.5 v 0.1 v 0.6 4.2 t plh , t phl b a v ccb = 1.8 v 0.15 v 0.4 3.9 ns v ccb = 2.5 v 0.2 v 0.2 3.4 v ccb = 3.3 v 0.3 v 0.2 3.3 v ccb = 1.2 v 4 v ccb = 1.5 v 0.1 v 0.7 6.5 t pzh , t pzl oe a v ccb = 1.8 v 0.15 v 0.7 5.2 ns v ccb = 2.5 v 0.2 v 0.6 4.8 v ccb = 3.3 v 0.3 v 0.4 4.8 v ccb = 1.2 v 3.8 v ccb = 1.5 v 0.1 v 0.9 8.8 t pzh , t pzl oe b v ccb = 1.8 v 0.15 v 0.8 7 ns v ccb = 2.5 v 0.2 v 0.6 4.8 v ccb = 3.3 v 0.3 v 0.6 4 v ccb = 1.2 v 4.7 v ccb = 1.5 v 0.1 v 1 8.4 t phz , t plz oe a v ccb = 1.8 v 0.15 v 1 8.4 ns v ccb = 2.5 v 0.2 v 1 6.2 v ccb = 3.3 v 0.3 v 1 6.6 v ccb = 1.2 v 4.5 v ccb = 1.5 v 0.1 v 1.5 9.4 t phz oe b v ccb = 1.8 v 0.15 v 1.3 8.2 ns v ccb = 2.5 v 0.2 v 1.1 6.2 v ccb = 3.3 v 0.3 v 0.9 5.2 v ccb = 1.2 v 4.5 v ccb = 1.5 v 0.1 v 1.5 8.8 t plz oe b v ccb = 1.8 v 0.15 v 1.3 8.2 ns v ccb = 2.5 v 0.2 v 1.1 6.2 v ccb = 3.3 v 0.3 v 0.9 5.2 12 submit documentation feedback copyright ? 2004 ? 2015, texas instruments incorporated product folder links: sn74avch4t245
sn74avch4t245 www.ti.com sces577e ? june 2004 ? revised november 2015 7.10 switching characteristics, v cca = 3.3 v 0.3 v over recommended operating free-air temperature range (for parameter descriptions, see figure 3 ) from to parameter v ccb min typ max unit (input) (output) v ccb = 1.2 v 2.9 v ccb = 1.5 v 0.1 v 0.1 5.6 t plh , t phl a b v ccb = 1.8 v 0.15 v 0.1 4.5 ns v ccb = 2.5 v 0.2 v 0.1 3.3 v ccb = 3.3 v 0.3 v 0.1 2.9 v ccb = 1.2 v 2.6 v ccb = 1.5 v 0.1 v 0.6 4.2 t plh , t phl b a v ccb = 1.8 v 0.15 v 0.4 3.4 ns v ccb = 2.5 v 0.2 v 0.2 3 v ccb = 3.3 v 0.3 v 0.1 2.8 v ccb = 1.2 v 3.8 v ccb = 1.5 v 0.1 v 0.6 8.7 t pzh , t pzl oe a v ccb = 1.8 v 0.15 v 0.6 5.2 ns v ccb = 2.5 v 0.2 v 0.6 3.8 v ccb = 3.3 v 0.3 v 0.4 3.8 v ccb = 1.2 v 3.7 v ccb = 1.5 v 0.1 v 0.8 8.7 t pzh , t pzl oe b v ccb = 1.8 v 0.15 v 0.6 6.8 ns v ccb = 2.5 v 0.2 v 0.5 4.7 v ccb = 3.3 v 0.3 v 0.5 3.8 v ccb = 1.2 v 4.8 v ccb = 1.5 v 0.1 v 0.7 9.3 t phz , t plz oe a v ccb = 1.8 v 0.15 v 0.7 8.3 ns v ccb = 2.5 v 0.2 v 0.7 5.6 v ccb = 3.3 v 0.3 v 0.7 6.6 v ccb = 1.2 v 5.3 v ccb = 1.5 v 0.1 v 1.4 9.3 t phz , t plz oe b v ccb = 1.8 v 0.15 v 1.2 8.1 ns v ccb = 2.5 v 0.2 v 1 6.4 v ccb = 3.3 v 0.3 v 0.8 6.2 copyright ? 2004 ? 2015, texas instruments incorporated submit documentation feedback 13 product folder links: sn74avch4t245
sn74avch4t245 sces577e ? june 2004 ? revised november 2015 www.ti.com 7.11 operating characteristics t a = 25 c test parameter v cca typ unit conditions v cca = v ccb = 1.2 v 1 v cca = v ccb = 1.5 v 1 c l = 0, outputs f = 10 mhz, v cca = v ccb = 1.8 v 1 pf enabled t r = t f = 1 ns v cca = v ccb = 2.5 v 1.5 v cca = v ccb = 3.3 v 2 a to b v cca = v ccb = 1.2 v 1 v cca = v ccb = 1.5 v 1 c l = 0, outputs f = 10 mhz, v cca = v ccb = 1.8 v 1 pf disabled t r = t f = 1 ns v cca = v ccb = 2.5 v 1 v cca = v ccb = 3.3 v 1 c pda (1) v cca = v ccb = 1.2 v 12 v cca = v ccb = 1.5 v 12.5 c l = 0, outputs f = 10 mhz, v cca = v ccb = 1.8 v 13 pf enabled t r = t f = 1 ns v cca = v ccb = 2.5 v 14 v cca = v ccb = 3.3 v 15 b to a v cca = v ccb = 1.2 v 1 v cca = v ccb = 1.5 v 1 c l = 0, outputs f = 10 mhz, v cca = v ccb = 1.8 v 1 pf disabled t r = t f = 1 ns v cca = v ccb = 2.5 v 1 v cca = v ccb = 3.3 v 1 v cca = v ccb = 1.2 v 12 v cca = v ccb = 1.5 v 12.5 c l = 0, outputs f = 10 mhz, v cca = v ccb = 1.8 v 13 pf enabled t r = t f = 1 ns v cca = v ccb = 2.5 v 14 v cca = v ccb = 3.3 v 15 a to b v cca = v ccb = 1.2 v 1 v cca = v ccb = 1.5 v 1 c l = 0, outputs f = 10 mhz, v cca = v ccb = 1.8 v 1 pf disabled t r = t f = 1 ns v cca = v ccb = 2.5 v 1 v cca = v ccb = 3.3 v 1 c pdb (1) v cca = v ccb = 1.2 v 1 v cca = v ccb = 1.5 v 1 c l = 0, outputs f = 10 mhz, v cca = v ccb = 1.8 v 1 pf enabled t r = t f = 1 ns v cca = v ccb = 2.5 v 1 v cca = v ccb = 3.3 v 2 b to a v cca = v ccb = 1.2 v 1 v cca = v ccb = 1.5 v 1 c l = 0, outputs f = 10 mhz, v cca = v ccb = 1.8 v 1 pf disabled t r = t f = 1 ns v cca = v ccb = 2.5 v 1 v cca = v ccb = 3.3 v 1 (1) power dissipation capacitance per transceiver. refer to ti application report, cmos power consumption and cpd calculation ( scaa035 ) 14 submit documentation feedback copyright ? 2004 ? 2015, texas instruments incorporated product folder links: sn74avch4t245
sn74avch4t245 www.ti.com sces577e ? june 2004 ? revised november 2015 7.12 typical characteristics figure 1. low-level output voltage (v ol ) figure 2. high-level output voltage (v oh ) vs low-level current (i ol ) vs high-level current (i oh ) copyright ? 2004 ? 2015, texas instruments incorporated submit documentation feedback 15 product folder links: sn74avch4t245 0 20 40 60 80 100 i current (ma) oh 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 v oh voltage (v) -40 2585 c cc 0 20 40 60 80 100 i current (ma) ol 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 v ol voltage (v) -40 2585 c cc
sn74avch4t245 sces577e ? june 2004 ? revised november 2015 www.ti.com 8 parameter measurement information figure 3. load circuit and voltage waveforms 16 submit documentation feedback copyright ? 2004 ? 2015, texas instruments incorporated product folder links: sn74avch4t245 v oh v ol from output under test c l (see note a) load circuit s1 2 v cco open gnd r l r l t plh t phl output control (low-level enabling) output waveform 1 s1 at 2 v cco (see note b) output waveform 2 s1 at gnd (see note b) t pzl t pzh t plz t phz v cca /2 v cca /2 v cci /2 v cci /2 v cci 0 v v cco /2 v cco /2 v oh v ol 0 v v cco /2 v ol + v tp v cco /2 v oh ? v tp 0 v v cci 0 v v cci /2 v cci /2 t w input v cca v cco voltage waveforms propagation delay times voltage waveforms pulse duration voltage waveforms enable and disable times output input t pd t plz /t pzl t phz /t pzh open 2 v cco gnd test s1 notes: a. c l includes probe and jig capacitance. b. waveform 1 is for an output with internal conditions such that the output is l ow, except when disabled by the output control. waveform 2 is for an output with internal conditions such that the output is high, exc ept when disabled by the output control. c. all input pulses are supplied by generators having the following chara cteristics: prr 10 mhz, z o = 50 , dv/dt 1 v/ns, dv/dt 1 v/ns. d. the outputs are measured one at a time, with one transition per measuremen t. e. t plz and t phz are the same as t dis . f. t pzl and t pzh are the same as t en . g. t plh and t phl are the same as t pd . h. v cci is the v cc associated with the input port. i. v cco is the v cc associated with the output port. 1.2 v 1.5 v 0.1 v 1.8 v 0.15 v 2.5 v 0.2 v 3.3 v 0.3 v 2 k 2 k 2 k 2 k 2 k v cco r l 0.1 v 0.1 v 0.15 v 0.15 v 0.3 v v tp c l 15 pf 15 pf 15 pf 15 pf 15 pf
sn74avch4t245 www.ti.com sces577e ? june 2004 ? revised november 2015 9 detailed description 9.1 overview the sn74avch4t245 is a 4-bit, dual-supply noninverting bidirectional voltage level translation device. ax pins and control pins (1dir, 2dir,1 oe, and 2 oe) are supported by v cca , and bx pins are supported by v ccb . the a port is able to accept i/o voltages ranging from 1.2 v to 3.6 v, while the b port can accept i/o voltages from 1.2 v to 3.6 v. a high on dir allows data transmission from ax to bx and a low on dir allows data transmission from bx to ax when oe is set to low. when oe is set to high, both ax and bx pins are in the high-impedance state. refer to the avc logic family technology and applications application report scea006 ). 9.2 functional block diagram figure 4. logic diagram (positive logic) for 1/2 of sn74avch4t245 9.3 feature description 9.3.1 fully configurable dual-rail design allows each port to operate over the full 1.2v to 3.6v power- supply range both v cca and v ccb can be supplied at any voltage between 1.2 v and 3.6 v; thus, making the device suitable for translating between any of the low voltage nodes (1.2 v, 1.8 v, 2.5 v, and 3.3 v). 9.3.2 supports high speed translation the sn74avch4t245 device can support high data rate applications. the translated signal data rate can be up to 380 mbps when the signal is translated from 1.8 v to 3.3 v. 9.3.3 i off supports partial-power-down mode operation i off will prevent backflow current by disabling i/o output circuits when device is in partial-power-down mode. 9.3.4 bus-hold circuitry this device has active bus-hold circuitry that holds unused or undriven inputs at a valid logic state. use of pull-up or pull-down resistors with the bus-hold circuitry is not recommended. (refer to the bus-hold circuit application report ( scla015 ). pullup and pulldown resistors are not recommended on the inputs of devices with bus-hold. unused inputs can be left floating. copyright ? 2004 ? 2015, texas instruments incorporated submit documentation feedback 17 product folder links: sn74avch4t245 dir oe a1 a2 b1 b2
sn74avch4t245 sces577e ? june 2004 ? revised november 2015 www.ti.com feature description (continued) 9.3.5 vcc isolation feature the vcc isolation feature ensures that if either v cca or v ccb are at gnd (or < 0.4v), both ports will be in a high- impedance state (ioz shown in electrical characteristics ). this prevents false logic levels from being presented to either bus. 9.4 device functional modes table 1 lists the functional modes of the sn74avch4t245. table 1. function table (each 2-bit section) control output circuits inputs (1) operation oe dir a port b port l l enabled hi-z b data to a bus l h hi-z enabled a data to b bus h x hi-z hi-z isolation (1) input circuits of the data i/os are always active. 18 submit documentation feedback copyright ? 2004 ? 2015, texas instruments incorporated product folder links: sn74avch4t245
sn74avch4t245 www.ti.com sces577e ? june 2004 ? revised november 2015 10 application and implementation note information in the following applications sections is not part of the ti component specification, and ti does not warrant its accuracy or completeness. ti ? s customers are responsible for determining suitability of components for their purposes. customers should validate and test their design implementation to confirm system functionality. 10.1 application information the sn74avch4t245 device can be used in level-shifting applications for interfacing devices or systems operating at different interface voltages with one another. the sn74avch4t245 device is ideal for use in applications where a push-pull driver is connected to the data i/os. the max data rate can be up to 380 mbps when device translates a signal from 1.8 v to 3.3 v. 10.2 typical application figure 5. typical application diagram copyright ? 2004 ? 2015, texas instruments incorporated submit documentation feedback 19 product folder links: sn74avch4t245 sn74avch4t245 1oe1dir 1a1 1a2 2a12a2 1.2 v controller v v 1b11b2 2b12b2 3.3 v system 1.2 v 0.1 c 0.1 c 1 f 3.3 v gnd gnd gnd 2oe 2dir data data cca ccb
sn74avch4t245 sces577e ? june 2004 ? revised november 2015 www.ti.com typical application (continued) 10.2.1 design requirements for the design example shown in typical application, use the parameters listed in table 2 . table 2. design parameters design parameter example value input voltage range 1.2 v to 3.6 v output voltage range 1.2 v to 3.6 v 10.2.2 detailed design procedure to begin the design process, determine the following: ? input voltage range ? use the supply voltage of the device that is driving the sn74avch4t245 device to determine the input voltage range. for a valid logic high, the value must exceed the v ih of the input port. for a valid logic low, the value must be less than the v il of the input port. ? output voltage range ? use the supply voltage of the device that the sn74avch4t245 device is driving to determine the output voltage range. 10.2.3 application curve figure 6. translation up (1.2 v to 3.3 v) at 2.5 mhz 20 submit documentation feedback copyright ? 2004 ? 2015, texas instruments incorporated product folder links: sn74avch4t245 input (1.2 v)output (3.3 v)
sn74avch4t245 www.ti.com sces577e ? june 2004 ? revised november 2015 11 power supply recommendations the sn74avch4t245 device uses two separate configurable power-supply rails, v cca and v ccb . v cca accepts any supply voltage from 1.2 v to 3.6 v and v ccb accepts any supply voltage from 1.2 v to 3.6 v. the a port and b port are designed to track v cca and v ccb respectively allowing for low voltage bidirectional translation between any of the 1.2-v, 1.5-v, 1.8-v, 2.5-v, and 3.3-v voltage nodes. the output-enable ( oe) input circuit is designed so that it is supplied by v cca and when the oe input is high, all outputs are placed in the high-impedance state. to ensure the high-impedance state of the outputs during power up or power down, the oe input pin must be tied to v cca through a pull-up resistor and must not be enabled until v cca and v ccb are fully ramped and stable. the minimum value of the pull-up resistor to v cca is determined by the current-sinking capability of the driver. v cca or v ccb can be powered up first. if the sn74avch4t245 is powered up in a permanently enabled state, pull-up resistors are recommended at the input. this ensures proper/glitch-free power-up. (refer to designing with sn74lvcxt245 and sn74lvchxt245 family of direction controlled voltage translators/level-shifters application note ( slva746 ).) 12 layout 12.1 layout guidelines to ensure reliability of the device, following common printed-circuit board layout guidelines is recommended. ? bypass capacitors should be used on power supplies. ? short trace lengths should be used to avoid excessive loading. ? place pads on the signal paths for loading capacitors or pull-up resistors to help adjust rise and fall times of signals, depending on the system requirements. copyright ? 2004 ? 2015, texas instruments incorporated submit documentation feedback 21 product folder links: sn74avch4t245
sn74avch4t245 sces577e ? june 2004 ? revised november 2015 www.ti.com 12.2 layout example figure 7. layout recommendation 22 submit documentation feedback copyright ? 2004 ? 2015, texas instruments incorporated product folder links: sn74avch4t245 1 2 3 4 16 1b1 1a1 1dir 2oe v ccb 2dir legend via to power plane via to gnd plane (inner layer) polygonal copper pour from controller 15 14 13 bypass capacitor v cca 5 6 7 8 12 gnd gnd 2a1 2b2 1a2 1b2 2b1 2a2 11 10 9 v cca 1oe v ccb bypass capacitor from controller to system to system to controller to controller from system from system sn74avch4t245 v cca keep oe high until v cca and v ccb are powered up
sn74avch4t245 www.ti.com sces577e ? june 2004 ? revised november 2015 13 device and documentation support 13.1 documentation support 13.1.1 related documentation for related documentation, see the following: ? designing with sn74lvcxt245 and sn74lvchxt245 family of direction controlled voltage translators/level-shifters , slva746 ? bus-hold circuit , scla015 ? avc logic family technology and applications , scea006 13.2 community resources the following links connect to ti community resources. linked contents are provided "as is" by the respective contributors. they do not constitute ti specifications and do not necessarily reflect ti's views; see ti's terms of use . ti e2e ? online community ti's engineer-to-engineer (e2e) community. created to foster collaboration among engineers. at e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. design support ti's design support quickly find helpful e2e forums along with design support tools and contact information for technical support. 13.3 trademarks e2e is a trademark of texas instruments. all other trademarks are the property of their respective owners. 13.4 electrostatic discharge caution these devices have limited built-in esd protection. the leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the mos gates. 13.5 glossary slyz022 ? ti glossary . this glossary lists and explains terms, acronyms, and definitions. 14 mechanical, packaging, and orderable information the following pages include mechanical, packaging, and orderable information. this information is the most current data available for the designated devices. this data is subject to change without notice and revision of this document. for browser-based versions of this data sheet, refer to the left-hand navigation. copyright ? 2004 ? 2015, texas instruments incorporated submit documentation feedback 23 product folder links: sn74avch4t245
package option addendum www.ti.com 30-oct-2015 addendum-page 1 packaging information orderable device status (1) package type package drawing pins package qty eco plan (2) lead/ball finish (6) msl peak temp (3) op temp (c) device marking (4/5) samples 74avch4t245pwrg4 active tssop pw 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 ws245 74avch4t245pwte4 active tssop pw 16 250 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 ws245 74avch4t245pwtg4 active tssop pw 16 250 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 ws245 74avch4t245rgyrg4 active vqfn rgy 16 3000 green (rohs & no sb/br) cu nipdau level-2-260c-1 year -40 to 85 ws245 74AVCH4T245RSVRG4 active uqfn rsv 16 3000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 zwv sn74avch4t245d active soic d 16 40 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 avch4t245 sn74avch4t245dgvr active tvsop dgv 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 ws245 sn74avch4t245dr active soic d 16 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 avch4t245 sn74avch4t245dt active soic d 16 250 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 avch4t245 sn74avch4t245pw active tssop pw 16 90 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 ws245 sn74avch4t245pwe4 active tssop pw 16 90 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 ws245 sn74avch4t245pwr active tssop pw 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 ws245 sn74avch4t245pwt active tssop pw 16 250 green (rohs & no sb/br) cu nipdau level-1-260c-unlim -40 to 85 ws245 sn74avch4t245rgyr active vqfn rgy 16 3000 green (rohs & no sb/br) cu nipdau level-2-260c-1 year -40 to 85 ws245 sn74avch4t245rsvr active uqfn rsv 16 3000 green (rohs & no sb/br) cu nipdau | call ti level-1-260c-unlim -40 to 85 zwv (1) the marketing status values are defined as follows: active: product device recommended for new designs. lifebuy: ti has announced that the device will be discontinued, and a lifetime-buy period is in effect. nrnd: not recommended for new designs. device is in production to support existing customers, but ti does not recommend using this part in a new design.
package option addendum www.ti.com 30-oct-2015 addendum-page 2 preview: device has been announced but is not in production. samples may or may not be available. obsolete: ti has discontinued the production of the device. (2) eco plan - the planned eco-friendly classification: pb-free (rohs), pb-free (rohs exempt), or green (rohs & no sb/br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. tbd: the pb-free/green conversion plan has not been defined. pb-free (rohs): ti's terms "lead-free" or "pb-free" mean semiconductor products that are compatible with the current rohs requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. where designed to be soldered at high temperatures, ti pb-free products are suitable for use in specified lead-free processes. pb-free (rohs exempt): this component has a rohs exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. the component is otherwise considered pb-free (rohs compatible) as defined above. green (rohs & no sb/br): ti defines "green" to mean pb-free (rohs compatible), and free of bromine (br) and antimony (sb) based flame retardants (br or sb do not exceed 0.1% by weight in homogeneous material) (3) msl, peak temp. - the moisture sensitivity level rating according to the jedec industry standard classifications, and peak solder temperature. (4) there may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) multiple device markings will be inside parentheses. only one device marking contained in parentheses and separated by a "~" will appear on a device. if a line is indented then it is a continuation of the previous line and the two combined represent the entire device marking for that device. (6) lead/ball finish - orderable devices may have multiple material finish options. finish options are separated by a vertical ruled line. lead/ball finish values may wrap to two lines if the finish value exceeds the maximum column width. important information and disclaimer: the information provided on this page represents ti's knowledge and belief as of the date that it is provided. ti bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. efforts are underway to better integrate information from third parties. ti has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. ti and ti suppliers consider certain information to be proprietary, and thus cas numbers and other limited information may not be available for release. in no event shall ti's liability arising out of such information exceed the total purchase price of the ti part(s) at issue in this document sold by ti to customer on an annual basis. other qualified versions of sn74avch4t245 : ? enhanced product: sn74avch4t245-ep note: qualified version definitions: ? enhanced product - supports defense, aerospace and medical applications
tape and reel information *all dimensions are nominal device package type package drawing pins spq reel diameter (mm) reel width w1 (mm) a0 (mm) b0 (mm) k0 (mm) p1 (mm) w (mm) pin1 quadrant sn74avch4t245dgvr tvsop dgv 16 2000 330.0 12.4 6.8 4.0 1.6 8.0 12.0 q1 sn74avch4t245dr soic d 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 q1 sn74avch4t245pwr tssop pw 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 q1 sn74avch4t245pwt tssop pw 16 250 330.0 12.4 6.9 5.6 1.6 8.0 12.0 q1 sn74avch4t245rsvr uqfn rsv 16 3000 180.0 12.4 2.1 2.9 0.75 4.0 12.0 q1 package materials information www.ti.com 30-oct-2015 pack materials-page 1
*all dimensions are nominal device package type package drawing pins spq length (mm) width (mm) height (mm) sn74avch4t245dgvr tvsop dgv 16 2000 367.0 367.0 35.0 sn74avch4t245dr soic d 16 2500 333.2 345.9 28.6 sn74avch4t245pwr tssop pw 16 2000 367.0 367.0 35.0 sn74avch4t245pwt tssop pw 16 250 367.0 367.0 35.0 sn74avch4t245rsvr uqfn rsv 16 3000 203.0 203.0 35.0 package materials information www.ti.com 30-oct-2015 pack materials-page 2

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