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1. general description the 74hc138; 74hct138 is a high-speed si-g ate cmos device and is pin compatible with low-power schottky ttl (lsttl). the 74hc138; 74hct138 decoder accepts three binary weighted address inputs (a0, a1 and a3) and when enabled, provides 8 mu tually exclusive active low outputs (y 0to y 7). the 74hc138; 74hct138 features three enable inputs: two active low (e 1 and e 2) and one active high (e3). every output is high unless e1 and e 2 are low and e3 is high. this multiple enable function allows easy parallel expansion of the 74hc138; 74hct138 to a 1-of-32 (5 lines to 32 lines) decoder wi th just four 74hc138; 74hct138 ics and one inverter. the 74hc138; 74hct138 can be used as an ei ght output demultiplexer by using one of the active low enable inputs as the data input and the remaining enable inputs as strobes. permanently tie unused enable inputs to their appropriate active high- or low-state. the 74hc138; 74hct138 is identical to the 74hc238; 74hct238 but has inverting outputs. 2. features and benefits ? demultiplexing capability ? multiple input enable for easy expansion ? complies with jedec standard no. 7a ? ideal for memory chip select decoding ? active low mutually exclusive outputs ? esd protection: ? hbm eia/jesd22-a114f exceeds 2000 v ? mm eia/jesd22-a115- a exceeds 200 v ? multiple package options ? specified from ? 40 cto+85 c and from ? 40 cto+125 c 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting rev. 4 ? 27 june 2012 product data sheet
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 2 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting 3. ordering information 4. functional diagram table 1. ordering information type number package temperature range name description version 74hc138n ? 40 cto+125 c dip16 plastic dual in-line package; 16 leads (300 mil) sot38-4 74hct138n 74hc138d ? 40 cto+125 c so16 plastic small outline package; 16 leads; body width 3.9 mm sot109-1 74 hct138d 74hc138db ? 40 cto+125 c ssop16 plastic shrink small outline package; 16 leads; body width 5.3 mm sot338-1 74hct138db 74hc138pw ? 40 cto+125 c tssop16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm sot403-1 74hct138pw 74hc138bq ? 40 cto+125 c dhvqfn16 plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 3.5 0.85 mm sot763-1 74hct138bq fig 1. logic symbol fig 2. functional diagram y0 y1 y2 y3 y4 y5 y6 y7 7 9 10 11 12 13 14 15 a0 a1 a2 3 2 1 6 5 4 e2 e1 e3 mna370 mna372 enable exiting y0 y1 y2 y3 y4 y5 y6 y7 7 9 10 11 12 13 14 15 a0 a1 a2 3-to-8 decoder 3 2 1 6 5 4 e2 e1 e3
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 3 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting 5. pinning information 5.1 pinning fig 3. logic diagram 001aae059 y6 y7 e1 e2 e3 a0 a1 a2 y4 y5 y2 y3 y0 y1 (1) the die substrate is attached to this pad using conductive die attach mate rial. it cannot be used as supply pin or input. fig 4. pin configuration dip16, so16, ssop16 and tssop16 fig 5. pin configuration dhvqfn16 74hc138 74hct138 a0 v cc a1 y0 a2 y1 e1 y2 e2 y3 e3 y4 y7 y5 gnd y6 001aae061 1 2 3 4 5 6 7 8 10 9 12 11 14 13 16 15 001aae060 74hc138bq 74hct138bq y7 y5 e3 y4 e2 y3 e1 y2 a2 y1 a1 y0 gnd y6 a0 v cc transparent top view 7 10 6 11 5 12 4 13 3 14 2 15 8 9 1 16 terminal 1 index area gnd (1)
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 4 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting 5.2 pin description 6. functional description [1] h = high voltage level; l = low voltage level; x = don?t care. 7. limiting values table 2. pin description symbol pin description a0, a1, a2 1, 2, 3 address input a0, a1, a2 e 1, e 2 4, 5 enable input e 1, e 2 (active low) e3 6 enable input e3 (active high) y 0, y 1, y 2, y 3, y 4, y 5, y 6, y 7 15, 14, 13, 12, 11, 10, 9, 7 output y 0, y 1, y 2, y 3, y 4, y 5, y 6, y 7 (active low) gnd 8 ground (0 v) v cc 16 positive supply voltage table 3. function table [1] control input output e 1 e 2 e3 a2 a1 a0 y 7 y 6 y 5 y 4 y 3 y 2 y 1 y 0 hxxxxxhhhhhhhh xhx xxl l l h l l l hhhhhhhl l l h hhhhhhl h lhlhhhhhlhh l h h hhhhl hhh h l l hhhl hhhh h l h hhl hhhhh h h l hl hhhhhh h h h l hhhhhhh table 4. limiting values in accordance with the absolute maximum rating system (iec 60134). voltages are referenced to gnd (ground = 0 v). symbol parameter conditions min max unit v cc supply voltage ? 0.5 +7 v i ik input clamping current v i < ? 0.5 v or v i >v cc +0.5 v - 20 ma i ok output clamping current v o < ? 0.5 v or v o >v cc +0.5v - 20 ma i o output current v o = ? 0.5 v to (v cc +0.5v) - 25 ma i cc quiescent supply current - 50 ma i gnd ground current - ? 50 ma t stg storage temperature ? 65 +150 c
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 5 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting [1] for dip16 package: p tot derates linearly with 12 mw/k above 70 c. [2] for so16 package: p tot derates linearly with 8 mw/k above 70 c. [3] for ssop16 and tssop16 packages: p tot derates linearly with 5.5 mw/k above 60 c. [4] for dhvqfn16 packages: p tot derates linearly with 4.5 mw/k above 60 c. 8. recommended operating conditions 9. static characteristics p tot total power dissipation dip16 package [1] - 750 mw so16 package [2] - 500 mw ssop16 package [3] - 500 mw tssop16 package [3] - 500 mw dhvqfn16 package [4] - 500 mw table 4. limiting values ?continued in accordance with the absolute maximum rating system (iec 60134). voltages are referenced to gnd (ground = 0 v). symbol parameter conditions min max unit table 5. recommended operating conditions voltages are referenced to gnd (ground = 0 v) symbol parameter conditions 74hc138 74hct138 unit min typ max min typ max v cc supply voltage 2.0 5.0 6.0 4.5 5.0 5.5 v v i input voltage 0 - v cc 0- v cc v v o output voltage 0 - v cc 0- v cc v t amb ambient temperature ? 40 +25 +125 ? 40 +25 +125 c t/ v input transition rise and fall rate v cc = 2.0 v - - 625 - - - ns/v v cc = 4.5 v - 1.67 139 - 1.67 139 ns/v v cc = 6.0 v - - 83 - - - ns/v table 6. static characteristics at recommended operating conditions; volt ages are referenced to gnd (ground = 0 v). symbol parameter conditions t amb = 25 c t amb = ? 40 c to +85 c t amb = ? 40 c to +125 c unit min typ max min max min max 74hc138 v ih high-level input voltage v cc = 2.0 v 1.5 1.2 - 1.5 - 1.5 - v v cc = 4.5 v 3.15 2.4 - 3.15 - 3.15 - v v cc = 6.0 v 4.2 3.2 - 4.2 - 4.2 - v v il low-level input voltage v cc = 2.0 v - 0.8 0.5 - 0.5 - 0.5 v v cc = 4.5 v - 2.1 1.35 - 1.35 - 1.35 v v cc = 6.0 v - 2.8 1.8 - 1.8 - 1.8 v
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 6 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting v oh high-level output voltage v i =v ih or v il i o = ? 20 a; v cc = 2.0 v 1.9 2.0 - 1.9 - 1.9 - v i o = ? 20 a; v cc = 4.5 v 4.4 4.5 - 4.4 - 4.4 - v i o = ? 20 a; v cc = 6.0 v 5.9 6.0 - 5.9 - 5.9 - v i o = ? 4.0 ma; v cc = 4.5 v 3.98 4.32 - 3.84 - 3.7 - v i o = ? 5.2 ma; v cc = 6.0 v 5.48 5.81 - 5.34 - 5.2 - v v ol low-level output voltage v i =v ih or v il i o =20 a; v cc = 2.0 v - 0 0.1 - 0.1 - 0.1 v i o =20 a; v cc = 4.5 v - 0 0.1 - 0.1 - 0.1 v i o =20 a; v cc = 6.0 v - 0 0.1 - 0.1 - 0.1 v i o = 4.0 ma; v cc = 4.5 v - 0.15 0.26 - 0.33 - 0.4 v i o = 5.2 ma; v cc = 6.0 v - 0.16 0.26 - 0.33 - 0.4 v i i input leakage current v i =v cc or gnd; v cc =6.0v -- 0.1 - 1.0 - 1.0 a i oz off-state output current per input pin; v i =v ih or v il ; v o =v cc or gnd; other inputs at v cc or gnd; v cc =6.0v; i o =0a -- 0.5 - 5.0 - 10 i cc supply current v i =v cc or gnd; i o =0a; v cc =6.0v - - 8.0 - 80 - 160 a c i input capacitance -3.5- pf 74hct138 v ih high-level input voltage v cc = 4.5 v to 5.5 v 2.0 1.6 - 2.0 - 2.0 - v v il low-level input voltage v cc = 4.5 v to 5.5 v - 1.2 0.8 - 0.8 - 0.8 v v oh high-level output voltage v i =v ih or v il ; v cc =4.5v i o = ? 20 a 4.4 4.5 - 4.4 - 4.4 - v i o = ? 4 ma 3.98 4.32 - 3.84 - 3.7 - v v ol low-level output voltage v i =v ih or v il ; v cc =4.5v i o =20 a - 0 0.1 - 0.1 - 0.1 v i o = 4.0 ma - 0.15 0.26 - 0.33 - 0.4 v i i input leakage current v i =v cc or gnd; v cc =5.5v -- 0.1 - 1.0 - 1.0 a i oz off-state output current per input pin; v i =v ih or v il ; v o =v cc or gnd; other inputs at v cc or gnd; v cc =5.5v; i o =0a -- 0.5 - 5.0 - 10 i cc supply current v i =v cc or gnd; i o =0a; v cc =5.5v - - 8.0 - 80 - 160 a table 6. static characteristics ?continued at recommended operating conditions; volt ages are referenced to gnd (ground = 0 v). symbol parameter conditions t amb = 25 c t amb = ? 40 c to +85 c t amb = ? 40 c to +125 c unit min typ max min max min max
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 7 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting 10. dynamic characteristics i cc additional supply current v i =v cc ? 2.1 v; other inputs at v cc or gnd; v cc = 4.5 v to 5.5 v; i o =0a per input pin; an inputs - 150 540 - 675 - 735 a per input pin; e n inputs - 125 450 - 562.5 - 612.5 a per input pin; e3 input - 100 360 - 450 - 490 a c i input capacitance -3.5- pf table 6. static characteristics ?continued at recommended operating conditions; volt ages are referenced to gnd (ground = 0 v). symbol parameter conditions t amb = 25 c t amb = ? 40 c to +85 c t amb = ? 40 c to +125 c unit min typ max min max min max table 7. dynamic characteristics voltages are referenced to gnd (ground = 0 v); c l = 50 pf unless otherwise specified; for test circuit see figure 8 . symbol parameter conditions t amb = 25 c t amb = ? 40 c to +85 c t amb = ? 40 c to +125 c unit min typ max min max min max for type 74hc138 t pd propagation delay an to y n; see figure 6 [1] v cc = 2.0 v - 41 150 - 190 - 225 ns v cc = 4.5 v - 15 30 - 38 - 45 ns v cc =5v; c l =15pf - 12 - - - - - ns v cc = 6.0 v - 12 26 - 33 - 38 ns e3 to y n; see figure 6 [1] v cc = 2.0 v - 47 150 - 190 - 225 ns v cc = 4.5 v - 17 20 - 38 - 45 ns v cc =5v; c l =15pf - 14 - - - - - ns v cc = 6.0 v - 14 26 - 33 - 38 ns e ntoy n; see figure 7 [1] v cc = 2.0 v - 47 150 - 190 - 225 ns v cc = 4.5 v - 17 20 - 38 - 45 ns v cc =5v; c l =15pf - 14 - - - - - ns v cc = 6.0 v - 14 26 - 33 - 38 ns t t transition time y n; see figure 6 and figure 7 [2] v cc = 2.0 v - 19 75 - 95 - 110 ns v cc = 4.5 v - 7 15 - 19 - 22 ns v cc = 6.0 v - 6 13 - 16 - 19 ns c pd power dissipation capacitance c l =50pf;f=1 mhz; v i =gndtov cc [3] -67- - - - -pf
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 8 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting [1] t pd is the same as t plh and t phl . [2] t t is the same as t thl and t tlh . [3] c pd is used to determine the dynamic power dissipation (p d in w). p d =c pd v cc 2 f i n+ ? (c l v cc 2 f o ) where: f i = input frequency in mhz; f o = output frequency in mhz; c l = output load capacitance in pf; v cc = supply voltage in v; n = number of inputs switching; ? (c l v cc 2 f o ) = sum of outputs. for type 74hct138 t pd propagation delay an to y n; see figure 6 [1] v cc = 4.5 v - 20 35 - 44 - 53 ns v cc =5v; c l =15pf - 17 - - - - - ns e3 to y n; see figure 6 [1] v cc = 4.5 v - 18 40 - 50 - 60 ns v cc =5v; c l =15pf - 19 - - - - - ns e ntoy n; see figure 7 [1] v cc = 4.5 v - 19 40 - 50 - 60 ns v cc =5v; c l =15pf - 19 - - - - - ns t t transition time y n; see figure 6 and figure 7 [2] v cc = 4.5 v - 7 15 - 19 - 22 ns c pd power dissipation capacitance c l =50pf;f=1 mhz; v i =gndtov cc [3] -67- - - - -pf table 7. dynamic characteristics ?continued voltages are referenced to gnd (ground = 0 v); c l = 50 pf unless otherwise specified; for test circuit see figure 8 . symbol parameter conditions t amb = 25 c t amb = ? 40 c to +85 c t amb = ? 40 c to +125 c unit min typ max min max min max
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 9 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting 11. waveforms measurement points are given in table 8 . v ol and v oh are typical voltage output levels that occur with the output load. fig 6. propagation delay input (an) and enable input (e3) to output (y n) and transition time output (y n) mna373 an, e3 input yn output t phl t thl t plh gnd v cc v m v m v oh v ol t tlh measurement points are given in table 8 . v ol and v oh are typical voltage output levels that occur with the output load. fig 7. propagation delay enable input (e n) to output (y n) and transition time output (y n) mna374 e1, e2 input yn output t phl t plh gnd v cc v m v m v oh v ol t thl t tlh table 8. measurement points type input output v m v m 74hc138 0.5v cc 0.5v cc 74hct138 1.3 v 1.3 v
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 10 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting test data is given in table 9 . definitions test circuit: r t = termination resistance should be equal to output impedance z o of the pulse generator. c l = load capacitance including jig and probe capacitance. r l = load resistance. s1 = test selection switch. fig 8. load circuitry for measuring switching times v m v m t w t w 10 % 90 % 0 v v i v i negative pulse positive pulse 0 v v m v m 90 % 10 % t f t r t r t f 001aad983 dut v cc v cc v i v o r t r l s1 c l open g table 9. test data type input load s1 position v i t r , t f c l r l t phl , t plh t pzh , t phz t pzl , t plz 74hc138 v cc 6ns 15pf, 50 pf 1 k open gnd v cc 74hct138 3 v 6 ns 15 pf, 50 pf 1 k open gnd v cc
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 11 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting 12. package outline fig 9. package outline sot38-4 (dip16) references outline version european projection issue date iec jedec jeita sot38-4 95-01-14 03-02-13 m h c (e ) 1 m e a l seating plane a 1 w m b 1 b 2 e d a 2 z 16 1 9 8 e pin 1 index b 0 5 10 mm scale note 1. plastic or metal protrusions of 0.25 mm (0.01 inch) maximum per side are not included. unit a max. 12 b 1 (1) (1) (1) b 2 cd e e m z h l mm dimensions (inch dimensions are derived from the original mm dimensions) a min. a max. b max. w m e e 1 1.73 1.30 0.53 0.38 0.36 0.23 19.50 18.55 6.48 6.20 3.60 3.05 0.254 2.54 7.62 8.25 7.80 10.0 8.3 0.76 4.2 0.51 3.2 inches 0.068 0.051 0.021 0.015 0.014 0.009 1.25 0.85 0.049 0.033 0.77 0.73 0.26 0.24 0.14 0.12 0.01 0.1 0.3 0.32 0.31 0.39 0.33 0.03 0.17 0.02 0.13 dip16: plastic dual in-line package; 16 leads (300 mil) sot38-4
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 12 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting fig 10. package outline sot109-1 (so16) x w m a a 1 a 2 b p d h e l p q detail x e z e c l v m a (a ) 3 a 8 9 1 16 y pin 1 index unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p qz ywv references outline version european projection issue date iec jedec jeita mm inches 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 10.0 9.8 4.0 3.8 1.27 6.2 5.8 0.7 0.6 0.7 0.3 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. 1.0 0.4 sot109-1 99-12-27 03-02-19 076e07 ms-012 0.069 0.010 0.004 0.057 0.049 0.01 0.019 0.014 0.0100 0.0075 0.39 0.38 0.16 0.15 0.05 1.05 0.041 0.244 0.228 0.028 0.020 0.028 0.012 0.01 0.25 0.01 0.004 0.039 0.016 0 2.5 5 mm scale so16: plastic small outline package; 16 leads; body width 3.9 mm sot109-1
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 13 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting fig 11. package outline sot403-1 (tssop16) unit a 1 a 2 a 3 b p cd (1) e (2) (1) eh e ll p qz ywv references outline version european projection issue date iec jedec jeita mm 0.15 0.05 0.95 0.80 0.30 0.19 0.2 0.1 5.1 4.9 4.5 4.3 0.65 6.6 6.2 0.4 0.3 0.40 0.06 8 0 o o 0.13 0.1 0.2 1 dimensions (mm are the original dimensions) notes 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. plastic interlead protrusions of 0.25 mm maximum per side are not included. 0.75 0.50 sot403-1 mo-153 99-12-27 03-02-18 w m b p d z e 0.25 18 16 9 a a 1 a 2 l p q detail x l (a ) 3 h e e c v m a x a y 0 2.5 5 mm scale tssop16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm sot403-1 a max. 1.1 pin 1 index
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 14 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting fig 12. package outline sot338-1 (ssop16) unit a 1 a 2 a 3 b p cd (1) e (1) eh e ll p qz ywv references outline version european projection issue date iec jedec jeita mm 0.21 0.05 1.80 1.65 0.25 0.38 0.25 0.20 0.09 6.4 6.0 5.4 5.2 0.65 1.25 7.9 7.6 1.03 0.63 0.9 0.7 1.00 0.55 8 0 o o 0.13 0.2 0.1 dimensions (mm are the original dimensions) note 1. plastic or metal protrusions of 0.25 mm maximum per side are not included. sot338-1 99-12-27 03-02-19 (1) w m b p d h e e z e c v m a x a y 1 8 16 9 a a 1 a 2 l p q detail x l (a ) 3 mo-150 pin 1 index 0 2.5 5 mm scale ssop16: plastic shrink small outline package; 16 leads; body width 5.3 mm sot338-1 a max. 2
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 15 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting fig 13. package outline sot763-1 (dhvqfn16) terminal 1 index area 0.5 1 a 1 e h b unit y e 0.2 c references outline version european projection issue date iec jedec jeita mm 3.6 3.4 d h 2.15 1.85 y 1 2.6 2.4 1.15 0.85 e 1 2.5 0.30 0.18 0.05 0.00 0.05 0.1 dimensions (mm are the original dimensions) sot763-1 mo-241 - - - - - - 0.5 0.3 l 0.1 v 0.05 w 0 2.5 5 mm scale sot763-1 dhvqfn16: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 x 3.5 x 0.85 mm a (1) max. a a 1 c detail x y y 1 c e l e h d h e e 1 b 27 15 10 9 8 1 16 x d e c b a terminal 1 index area ac c b v m w m e (1) note 1. plastic or metal protrusions of 0.075 mm maximum per side are not included. d (1) 02-10-17 03-01-27
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 16 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting 13. abbreviations 14. revision history table 10. abbreviations acronym description cmos complementary metal oxide semiconductor dut device under test esd electrostatic discharge hbm human body model lsttl low-power schottky transistor-transistor logic mm machine model table 11. revision history document id release date data sheet status change notice doc. number supersedes 74hc_hct138 v.4 20120627 product data sheet - - 74hc_hct138 v.3 modifications: ? the format of this data sheet has been redesigned to comply with the new identity guidelines of nxp semiconductors. ? legal texts have been adapted to the new company name where appropriate. ? sot38-1 changed to sot38-4. 74hc_hct138 v.3 20051223 product data sheet - - 74hc_hct138_cnv v.2 modifications: ? the format of this data sheet has been redesi gned to comply with the new presentation and information standard of philips semiconductors. ? section 3 ? ordering information ? , section 5 ? pinning information ? and section 12 ? package outline ? : added dhvqfn package information ? section 9 ? static characteristics ? : added from the family specification 74hc_hct138_cnv v.2 19970827 product specification ---
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 17 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting 15. legal information 15.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term ?short data sheet? is explained in section ?definitions?. [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple device s. the latest product status information is available on the internet at url http://www.nxp.com . 15.2 definitions draft ? the document is a draft versi on only. the content is still under internal review and subject to formal approval, which may result in modifications or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall hav e no liability for the consequences of use of such information. short data sheet ? a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request vi a the local nxp semiconductors sales office. in case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. product specification ? the information and data provided in a product data sheet shall define the specification of the product as agreed between nxp semiconductors and its customer , unless nxp semiconductors and customer have explicitly agreed otherwis e in writing. in no event however, shall an agreement be valid in which the nxp semiconductors product is deemed to offer functions and qualities beyond those described in the product data sheet. 15.3 disclaimers limited warranty and liability ? information in this document is believed to be accurate and reliable. however, nxp semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such info rmation. nxp semiconductors takes no responsibility for the content in this document if provided by an information source outside of nxp semiconductors. in no event shall nxp semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. notwithstanding any damages that customer might incur for any reason whatsoever, nxp semiconductors? aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the terms and conditions of commercial sale of nxp semiconductors. right to make changes ? nxp semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. this document supersedes and replaces all information supplied prior to the publication hereof. suitability for use ? nxp semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an nxp semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. nxp semiconductors and its suppliers accept no liability for inclusion and/or use of nxp semiconducto rs products in such equipment or applications and therefore such inclusion and/or use is at the customer?s own risk. applications ? applications that are described herein for any of these products are for illustrative purpos es only. nxp semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. customers are responsible for the design and operation of their applications and products using nxp semiconductors products, and nxp semiconductors accepts no liability for any assistance with applications or customer product design. it is customer?s sole responsibility to determine whether the nxp semiconductors product is suitable and fit for the customer?s applications and products planned, as well as fo r the planned application and use of customer?s third party customer(s). customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. nxp semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer?s applications or products, or the application or use by customer?s third party customer(s). customer is responsible for doing all necessary testing for the customer?s applic ations and products using nxp semiconductors products in order to av oid a default of the applications and the products or of the application or use by customer?s third party customer(s). nxp does not accept any liability in this respect. limiting values ? stress above one or more limiting values (as defined in the absolute maximum ratings system of iec 60134) will cause permanent damage to the device. limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the recommended operating conditions section (if present) or the characteristics sections of this document is not warranted. constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. terms and conditions of commercial sale ? nxp semiconductors products are sold subject to the gener al terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms , unless otherwise agreed in a valid written individual agreement. in case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. nxp semiconductors hereby expressly objects to applying the customer?s general terms and conditions with regard to the purchase of nxp semiconducto rs products by customer. no offer to sell or license ? nothing in this document may be interpreted or construed as an offer to sell products t hat is open for acceptance or the grant, conveyance or implication of any lic ense under any copyrights, patents or other industrial or intellectual property rights. document status [1] [2] product status [3] definition objective [short] data sheet development this document contains data from the objecti ve specification for product development. preliminary [short] data sheet qualification this document contains data from the preliminary specification. product [short] data sheet production this document contains the product specification.
74hc_hct138 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 4 ? 27 june 2012 18 of 19 nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting export control ? this document as well as the item(s) described herein may be subject to export control regu lations. export might require a prior authorization from competent authorities. non-automotive qualified products ? unless this data sheet expressly states that this specific nxp semicon ductors product is automotive qualified, the product is not suitable for automotive use. it is neither qualified nor tested in accordance with automotive testing or application requirements. nxp semiconductors accepts no liabili ty for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. in the event that customer uses t he product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without nxp semiconductors? warranty of the product for such automotive applicat ions, use and specifications, and (b) whenever customer uses the product for automotive applications beyond nxp semiconductors? specifications such use shall be solely at customer?s own risk, and (c) customer fully indemnifies nxp semiconductors for any liability, damages or failed product claims resulting from customer design and use of the product for automotive app lications beyond nxp semiconductors? standard warranty and nxp semiconduct ors? product specifications. translations ? a non-english (translated) version of a document is for reference only. the english version shall prevail in case of any discrepancy between the translated and english versions. 15.4 trademarks notice: all referenced brands, produc t names, service names and trademarks are the property of their respective owners. 16. contact information for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com
nxp semiconductors 74hc138; 74hct138 3-to-8 line decoder/de multiplexer; inverting ? nxp b.v. 2012. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please se nd an email to: salesaddresses@nxp.com date of release: 27 june 2012 document identifier: 74hc_hct138 please be aware that important notices concerning this document and the product(s) described herein, have been included in section ?legal information?. 17. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features and benefits . . . . . . . . . . . . . . . . . . . . 1 3 ordering information . . . . . . . . . . . . . . . . . . . . . 2 4 functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 5 pinning information . . . . . . . . . . . . . . . . . . . . . . 3 5.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 6 functional description . . . . . . . . . . . . . . . . . . . 4 7 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 4 8 recommended operating conditions. . . . . . . . 5 9 static characteristics. . . . . . . . . . . . . . . . . . . . . 5 10 dynamic characteristics . . . . . . . . . . . . . . . . . . 7 11 waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 12 package outline . . . . . . . . . . . . . . . . . . . . . . . . 11 13 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 16 14 revision history . . . . . . . . . . . . . . . . . . . . . . . . 16 15 legal information. . . . . . . . . . . . . . . . . . . . . . . 17 15.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 17 15.2 definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 15.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 15.4 trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 18 16 contact information. . . . . . . . . . . . . . . . . . . . . 18 17 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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