rev.1.00 nov. 26, 2004 page 1 of 9 RD74LVC373B octal d-type transparent latches with 3-state outputs rej03d0381?0100 rev.1.00 nov. 26, 2004 description the RD74LVC373B has eight d type latches with three state outputs in a 20 pin package. when the latch enable input is high, the q outputs will follow the d inputs. when the latch enable goes low, data at the d inputs will be retained at the outputs until latch enable returns high again. when a high logic level is applied to the output control input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements. low voltage and high-speed operation is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of battery for long time operation. features ? v cc = 1.65 v to 5.5 v ? all inputs v ih (max.) = 5.5 v (@v cc = 0 v to 5.5 v) ? all outputs v out (max.) = 5.5 v (@v cc = 0 v or output off state) ? typical v ol ground bounce < 0.8 v (@v cc = 3.3 v, ta = 25c) ? typical v oh undershoot > 2.0 v (@v cc = 3.3 v, ta = 25c) ? high output current 4 ma (@v cc = 1.65 v) 8 ma (@v cc = 2.3 v) 12 ma (@v cc = 2.7 v) 24 ma (@v cc = 3.0 v to 5.5 v) ? ordering information part name package type package code package abbreviation taping abbreviation (quantity) RD74LVC373Bfpel sop?20 pin (jeita) fp?20dav fp el (2,000 pcs/reel) RD74LVC373Btell tssop?20 pin ttp?20dav t ell (2,000 pcs/reel) function table inputs g le d output q h x x z l h l l l h h h l l x q 0 h: high level l: low level x: immaterial z: high impedance q 0 : level of q before the indicated steady input conditions were established.
RD74LVC373B rev.1.00 nov. 26, 2004 page 2 of 9 pin arrangement (top view) 11 12 13 14 15 16 17 18 19 20 v cc 1 2 3 4 5 6 7 8 9 10 g 1q gnd d g q g q d d g q g q d 1d 2d 2q 3q 3d 4d 4q 8q 8d 7d 7q 6q 6d 5d 5q le d g q g q d d g q g q d
RD74LVC373B rev.1.00 nov. 26, 2004 page 3 of 9 absolute maximum ratings item symbol ratings unit conditions supply voltage v cc ?0.5 to 7.0 v input diode current i ik ?50 ma v i = ?0.5 v input voltage v i ?0.5 to 7.0 v ?50 v o = ?0.5 v output diode current i ok 50 ma v o = v cc +0.5 v ?0.5 to v cc +0.5 output "h" or "l" output voltage v o ?0.5 to 7.0 v output "z" or v cc : off output current i o 50 ma v cc , gnd current / pin i cc or i gnd 100 ma storage temperature tstg ?65 to +150 c note: the absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. recommended operating conditions item symbol ratings unit conditions 1.5 to 5.5 data hold supply voltage v cc 1.65 to 5.5 v at operation v i 0 to 5.5 g , le, d 0 to v cc output "h" or "l" input/output voltage v o 0 to 5.5 v output "z" or v cc : off operating temperature ta ?40 to 85 c ?4 v cc = 1.65 v ?8 v cc = 2.3 v ?12 v cc = 2.7 v i oh ?24 ma v cc = 3.0 v to 5.5 v 4 v cc = 1.65 v 8 v cc = 2.3 v 12 v cc = 2.7 v output current i ol 24 ma v cc = 3.0 v to 5.5 v 20 v cc = 1.65 v to 2.7 v input rise / fall time *1 t r , t f 10 ns/v v cc = 3.0 v to 5.5 v notes: 1. this item guarantees maxi mum limit when one input switches. waveform: refer to te st circuit of switching characteristics.
RD74LVC373B rev.1.00 nov. 26, 2004 page 4 of 9 electrical characteristics ta = ?40 to 85c item symbol v cc (v) min max unit test conditions 1.65 to 1.95 v cc 0.65 ? 2.3 to 2.7 1.7 ? 2.7 to 3.6 2.0 ? v ih 4.5 to 5.5 v cc 0.7 ? 1.65 to 1.95 ? v cc 0.35 2.3 to 2.7 ? 0.7 2.7 to 3.6 ? 0.8 input voltage v il 4.5 to 5.5 ? v cc 0.3 v 1.65 to 5.5 v cc ?0.2 ? i oh = ?100 a 1.65 1.2 ? i oh = ?4 ma 2.3 1.7 ? i oh = ?8 ma 2.7 2.2 ? 3.0 2.4 ? i oh = ?12 ma 3.0 2.2 ? v oh 4.5 3.8 ? i oh = ?24 ma 1.65 to 5.5 ? 0.2 i ol = 100 a 1.65 ? 0.45 i ol = 4 ma 2.3 ? 0.7 i ol = 8 ma 2.7 ? 0.4 i ol = 12 ma 3.0 ? 0.55 output voltage v ol 4.5 ? 0.55 v i ol = 24 ma input current i in 0 to 5.5 ? 5.0 a v in = 5.5 v or gnd output leak current i off 0 ? 5.0 a v in / v out = 5.5 v off state output current i oz 2.7 to 5.5 ? 5.0 a v in = v cc or gnd v out = 5.5 v or gnd 2.7 to 3.6 ? 5.0 a v in = 3.6 to 5.5 v i cc 2.7 to 5.5 ? 5.0 a v in = v cc or gnd quiescent supply current ? i cc 2.7 to 3.6 ? 500 a v in = one input at (v cc ?0.6)v, other inputs at v cc or gnd
RD74LVC373B rev.1.00 nov. 26, 2004 page 5 of 9 switching characteristics ta = ?40 to 85c item symbol v cc (v) min typ max unit from (input) to (output) 1.80.15 1.0 ? 19.1 2.50.2 1.0 ? 9.6 2.7 1.0 ? 7.7 3.30.3 1.5 ? 6.9 t plh t phl 5.00.5 1.0 ? 5.4 ns d q 1.80.15 1.0 ? 22.8 2.50.2 1.0 ? 10.5 2.7 1.0 ? 8.4 3.30.3 2.0 ? 7.7 propagation delay time t plh t phl 5.00.5 1.0 ? 6.2 ns le q 1.80.15 1.0 ? 20.0 2.50.2 1.0 ? 10.5 2.7 1.0 ? 8.5 3.30.3 1.5 ? 7.5 output enable time t zh t zl 5.00.5 1.0 ? 6.0 ns g q 1.80.15 1.0 ? 19.3 2.50.2 1.0 ? 7.8 2.7 1.0 ? 7.0 3.30.3 1.6 ? 6.5 output disable time t hz t lz 5.00.5 1.0 ? 5.5 ns g q 1.80.15 6.0 ? ? 2.50.2 4.0 ? ? 2.7 2.0 ? ? 3.30.3 2.0 ? ? setup time t su 5.00.5 2.0 ? ? ns 1.80.15 4.0 ? ? 2.50.2 2.0 ? ? 2.7 1.5 ? ? 3.30.3 1.5 ? ? hold time t h 5.00.5 1.5 ? ? ns 1.80.15 9.0 ? ? 2.50.2 4.0 ? ? 2.7 3.3 ? ? 3.30.3 3.3 ? ? pulse width t w 5.00.5 3.3 ? ? ns 1.80.15 ? ? ? 2.50.2 ? ? ? 2.7 ? ? ? 3.30.3 ? ? 1.0 between output pins skew *1 t oslh t oshl 5.00.5 ? ? 1.0 ns input capacitance c in 3.3 ? 4.0 ? pf output capacitance c o 3.3 ? 8.0 ? pf note: 1. this parameter is characterized but not tested. tos lh = | t plhm - t plhn |, tos hl = | t phlm - t phln |
RD74LVC373B rev.1.00 nov. 26, 2004 page 6 of 9 operating characteristics ta = 25c item symbol v cc (v) min typ max unit test conditions 1.8 ? 27 ? 2.5 ? 28 ? 3.3 ? 30 ? power dissipation capacitance c pd 5.0 ? 35 ? pf f = 10 mhz test circuit v cc v cc see function table g le pulse generator z = 50 out ? output c l r l r l open gnd s1 input 1d to 8d 1q to 8q input pulse generator z = 50 out ? symbol s1 t / t plh phl t / t zh hz t / t zl lz t / t / t su h w open gnd v tt v tt note: 1. c l includes probe and jig capacitance. waveforms ? 1 input le gnd t plh 10 % 90 % t r t f 10 % 10 % t r 90 % 10 % t f gnd t phl v oh v ol input d output q 90 % 90 % v ih v ih v ref v ref v ref v ref note: input waveform: prr = 10 mhz, duty cycle 50%.
RD74LVC373B rev.1.00 nov. 26, 2004 page 7 of 9 waveforms ? 2 t plh t phl gnd gnd v oh v ol t r 90 % 10 % input le input d output q t r 90 % 10 % t f 90 % 10 % v ih v ih v ref v ref v ref v ref note: input waveform: prr = 10 mhz, duty cycle 50%. waveforms ? 3 t w t s t h gnd gnd input le t r 90 % 90 % 10 % t f 10 % input d v ih v ih v ref v ref v ref v ref note: input waveform: prr = 10 mhz, duty cycle 50%.
RD74LVC373B rev.1.00 nov. 26, 2004 page 8 of 9 waveforms ? 4 v ? ? v oh v + ? v ol t zl t lz t zh t hz t f t r 90 % 10 % 90 % 10 % v oh v ol gnd input g waveform - a waveform - b v ih gnd 1/2 v tt v ref v ref v ref v ref v cc (v) v ih vref v tt c l r l t r /t f v cc v cc 1/2 v cc 2 v cc 2 v cc 2 v cc 1/2 v cc 1/2 v cc v cc inputs v cc = 1.80.15 v v cc = 2.50.2 v v cc = 3.30.3 v v cc = 5.00.5 v v cc = 2.7 v 2.7 v 1.5 v 1.0 k ? 500 ? 500 ? 500 ? 500 ? 6 v 30 pf 30 pf 50 pf 50 pf 50 pf 6 v 0.15 v 0.15 v 0.3 v 0.3 v 0.3 v ? v 1.5 v 2.7 v 2 ns 2 ns 2.5 ns 2.5 ns 2.5 ns notes: 1. input waveform: p rr = 10 mhz, duty cycle 50% 2. waveform ? a shows input conditions such t hat the output is "l" level when enable by the output control. 3. waveform ? b shows input conditions such t hat the output is "h" level when enable by the output control.
RD74LVC373B rev.1.00 nov. 26, 2004 page 9 of 9 package dimensions package code jedec jeita mass (reference value) fp?20dav ? conforms 0.31 g *pd plating *0.40 0.06 0.12 0.15 m 20 10 1 *0.20 0.05 0.80 max 11 12.6 5.5 2.20 max 13 max 0 ? ? 8 ? 0.70 0.20 + 0.20 ? 0.30 7.80 1.27 0.10 0.10 1.15 as of january, 2002 unit: mm package code jedec jeita mass (reference value) ttp?20dav ? ? 0.07 g *pd plating 0.50 0.10 0? ? 8? *0.15 0.05 6.40 0.20 0.10 1.10 max 0.13 m 0.65 110 20 11 4.40 6.50 6.80 max *0.20 0.05 0.07 +0.03 ?0.04 1.0 0.65 max as of january, 2002 unit: mm
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