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HD74LV240A octal buffers / drivers with 3-state outputs ade-205-272 (z) 1st edition april 1999 description the hd74v240a has eight inverter drivers with three-state outputs in a 20-pin package. four inverters are included in one circuit. each circuit can be independently controlled by the enable signal 1 oe or 2 oe , which enables outputs when receiving a low-level signal. low-voltage operation is suitable for battery- powered products (e.g., notebook computers), and the low-power consumption extends the battery life. features v cc = 2.0 v to 5.5 v operation all inputs v ih (max.) = 5.5 v (@v cc = 0 v to 5.5 v) all outputs v o (max.) = 5.5 v (@v cc = 0 v) typical v ol ground bounce < 0.8 v (@v cc = 3.3 v, ta = 25 c) typical v oh undershoot > 2.3 v (@v cc = 3.3 v, ta = 25 c) output current 8 ma (@v cc = 3.0 v to 3.6 v), 16 ma (@v cc = 4.5 v to 5.5 v) function table inputs oe a output y lhl llh hxz note: h: high level l: low level x: immaterial z: high impedance
HD74LV240A 2 pin arrangement (top view) 17 18 15 16 19 20 11 12 13 14 v cc 2 oe 1y1 2a4 1y2 2a3 1 2 3 4 5 6 7 8 9 10 1 oe 1a1 2y4 1a2 2y3 1a3 2y2 gnd 1a4 2y1 1y3 2a2 1y4 2a1
HD74LV240A 3 absolute maximum ratings item symbol ratings unit conditions supply voltage range v cc ?.5 to 7.0 v input voltage range* 1 v i ?.5 to 7.0 v output voltage range* 1, 2 v o ?.5 to v cc + 0.5 v output: h or l ?.5 to 7.0 v cc : off or output: z input clamp current i ik ?0 ma v i < 0 output clamp current i ok 50 ma v o < 0 or v o > v cc continuous output current i o 35 ma v o = 0 to v cc continuous current through v cc or gnd i cc or i gnd 70 ma maximum power dissipation at ta = 25 c (in still air)* 3 p t 835 mw sop 757 tssop storage temperature tstg ?5 to 150 c notes: 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. 1. the input and output voltage ratings may be exceeded even if the input and output clamp-current ratings are observed. 2. this value is limited to 5.5 v maximum. 3. the maximum package power dissipation was calculated using a junction temperature of 150 c.
HD74LV240A 4 recommended operating conditions item symbol min max unit conditions supply voltage range v cc 2.0 5.5 v input voltage range v i 0 5.5 v output voltage range v o 0v cc v h or l 0 5.5 high impedance state output current i oh ?0 m av cc = 2.0 v 2 mav cc = 2.3 to 2.7 v 8 v cc = 3.0 to 3.6 v ?2 v cc = 4.5 to 5.5 v i ol ?0 m av cc = 2.0 v 2 ma v cc = 2.3 to 2.7 v ? v cc = 3.0 to 3.6 v ?2 v cc = 4.5 to 5.5 v input transition rise or fall rate d t / d v 0 200 ns/v v cc = 2.3 to 2.7 v 0 100 v cc = 3.0 to 3.6 v 020 v cc = 4.5 to 5.5 v operating free-air temperature ta ?0 85 c note: unused or floating inputs must be held high or low. logic diagram 1 oe 1 2 4 6 8 1a1 1a2 1a3 1a4 18 16 14 12 1y1 1y2 1y3 1y4 2 oe 19 11 13 15 17 2a1 2a2 2a3 2a4 9 7 5 3 2y1 2y2 2y3 2y4
HD74LV240A 5 dc electrical characteristics ta = ?0 to 85 c item symbol v cc (v)* min typ max unit test conditions input voltage v ih 2.0 1.5 v 2.3 to 2.7 v cc 0.7 3.0 to 3.6 v cc 0.7 4.5 to 5.5 v cc 0.7 v il 2.0 0.5 2.3 to 2.7 v cc 0.3 3.0 to 3.6 v cc 0.3 4.5 to 5.5 v cc 0.3 output voltage v oh min to max v cc ?0.1 v i oh = ?0 m a 2.3 2.0 i oh = ? ma 3.0 2.48 i oh = ? ma 4.5 3.8 i oh = ?6 ma v ol min to max 0.1 i ol = 50 m a 2.3 0.4 i ol = 2 ma 3.0 0.44 i ol = 8 ma 4.5 0.55 i ol = 16 ma input current i in 0 to 5.5 1 m av in = 5.5 v or gnd off-state output current i oz 5.5 5 m av o = v cc or gnd quiescent supply current i cc 5.5 20 m av in = v cc or gnd, i o = 0 output leakage current i off 0 5 m av o = 5.5 v input capacitance c in 3.3 2.3 pf v i = v cc or gnd note: for conditions shown as min or max, use the appropriate values under recommended operating conditions.
HD74LV240A 6 switching characteristics v cc = 2.5 0.2 v ta = 25 c ta = ?0 to 85 c item symbol min typ max min max unit test conditions from (input) to (output) propagation delay time t plh t phl 6.3 11.6 1.0 14.0 ns c l = 15 pf a y 8.2 14.4 1.0 17.0 c l = 50 pf enable time t zh t zl 8.5 14.6 1.0 17.0 ns c l = 15 pf oe y 10.3 17.8 1.0 21.0 c l = 50 pf disable time t hz t lz 9.7 14.1 1.0 16.0 ns c l = 15 pf oe y 14.2 19.2 1.0 21.0 c l = 50 pf v cc = 3.3 0.3 v ta = 25 c ta = ?0 to 85 c item symbol min typ max min max unit test conditions from (input) to (output) propagation delay time t plh t phl 4.6 7.5 1.0 9.0 ns c l = 15 pf a y 5.9 11.0 1.0 12.5 c l = 50 pf enable time t zh t zl 6.2 10.6 1.0 12.5 ns c l = 15 pf oe y 7.5 14.1 1.0 16.0 c l = 50 pf disable time t hz t lz 8.3 12.5 1.0 13.5 ns c l = 15 pf oe y 11.8 15.0 1.0 17.0 c l = 50 pf
HD74LV240A 7 switching characteristics (cont) v cc = 5.0 0.5 v ta = 25 c ta = ?0 to 85 c item symbol min typ max min max unit test conditions from (input) to (output) propagation delay time t plh t phl 3.4 5.5 1.0 6.5 ns c l = 15 pf a y 4.4 7.5 1.0 8.5 c l = 50 pf enable time t zh t zl 4.6 7.3 1.0 8.5 ns c l = 15 pf oe y 5.6 9.3 1.0 10.5 c l = 50 pf disable time t hz t lz 7.4 12.2 1.0 13.5 ns c l = 15 pf oe y 9.7 14.2 1.0 15.5 c l = 50 pf
HD74LV240A 8 output-skew characteristics c l = 50 pf ta = 25 c ta = ?0 to 85 c item symbol v cc (v) min max min max unit output skew t sk (o) 2.3 to 2.7 2.0 2.0 ns 3.0 to 3.6 1.5 1.5 4.5 to 5.5 1.0 1.0 note: skew between any outputs of the same package switching in the same direction. this parameter is warranted but not production tested. operating characteristics c l = 50 pf ta = 25 c item symbol v cc (v) min typ max unit test conditions power dissipation capacitance c pd 3.3 14.0 pf f = 10 mhz 5.0 16.4 noise characteristics c l = 50 pf ta = 25 c item symbol v cc (v) min typ max unit test conditions quiet output, maximum dynamic v ol v ol (p) 3.3 0.6 0.8 v quiet output, minimum dynamic v ol v ol (v) 3.3 ?.5 ?.8 quiet output, minimum dynamic v oh v oh (v) 3.3 2.8 high-level dynamic input voltage v ih (d) 3.3 2.31 v low-level dynamic inout voltage v il (d) 3.3 0.99
HD74LV240A 9 test circuit v cc open gnd c * 1 oe , 2 oe z out = 50 input 1 k v cc v cc v cc s1 l output test s1 t /t plh phl open gnd t /t zh hz t /t zl lz 1a1 to 2a4 1y1 to 2y4 see function table pulse generator note: c includes the probe and jig capacitance. l
HD74LV240A 10 t plh t phl v oh v oh v ol v ol 0 v v cc 10% 90% cc 50% v cc 50% v cc 50% v cc 50% v cc 50% v cc 50% v 10% 90% ?waveform ?1 ?waveform ?2 input a output y t f t r t r t f t zl 0 v 0 v v cc v cc t lz t zh t hz 10% 10% 90% 90% cc 50% v cc 50% v input oe waveform ?a waveform ?b v ?0.3 v oh v + 0.3 v ol rf 1. input waveform: prr 1 mhz, zo = 50 , t 3 ns, t 3 ns 2. waveform-a is for an output with internal conditions such that the output is low except when disabled by the output control. 3. waveform-b is for an output with internal conditions such that the output is high except when disabled by the output control. 4. the output are measured one at a time with one transition per measurement. notes:
HD74LV240A 11 package dimensions hitachi code jedec eiaj weight (reference value) fp-20da conforms 0.31 g unit: mm *dimension including the plating thickness base material dimension *0.42 0.08 0.12 0.15 m 20 10 1 *0.22 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 0.40 0.06 0.20 0.04
HD74LV240A 12 hitachi code jedec eiaj weight (reference value) fp-20db conforms 0.52 g unit: mm *dimension including the plating thickness base material dimension 0.12 0.15 0 ?8 m 20 11 0.20 0.10 1 1.27 10 12.8 13.2 max 7.50 2.65 max *0.27 0.05 *0.42 0.08 + 0.57 ?0.30 0.70 + 0.25 ?0.40 10.40 1.45 0.935 max 0.40 0.06 0.25 0.04
HD74LV240A 13 hitachi code jedec eiaj weight (reference value) ttp-20da 0.07 g unit: mm *dimension including the plating thickness base material dimension 0.50 0.10 0 ?8 *0.17 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 *0.22 +0.08 ?.07 0.07 +0.03 ?.04 1.0 0.65 max 0.20 0.06 0.15 0.04
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