unisonic technologies co., ltd u74hc14 cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2009 unisonic technologies co., ltd qw-r502-071.c high-speed cmos logic hex inverting schmitt trigger ? description the utc u74hc14 each contain six inverting schmitt triggers in one package. each of them perform the boolean function y=a. ? features * widely range of input rise and fall time * high noise immunity * fan-out parameters(over temperature range) up to 10 lsttl loads * low power consumption * wide range operation 2v ~ 6v lead-free: u74hc14l halogen-free:u74hc14g ? ordering information ordering number normal lead free plating halogen free package packing U74HC14-D14-T u74hc14l-d14-t u74hc14g-d14-t dip-14 tube u74hc14-s14-r u74hc14l-s14-r u74hc14g-s14-r sop-14 tape reel u74hc14-p14-r u74hc14l-p14-r u74hc14g-p14-r tssop-14 tape reel
u74hc14 cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-071.c ? pin configuration 1 2 3 4 5 6 7 14 13 12 11 10 9 8 gnd 3y 3a 2y 2a 1y 1a 4y 4a 5y 5a 6y 6a v cc ? functional diagram ? truth table input(a) output(y) l h h l h=high level l=low level
u74hc14 cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-071.c ? logic diagram v h v il v ih v in v out v cc gnd v in v ih v il v h hysteresis definition, characteristic, and test setup v cc gnd v cc v out gnd
u74hc14 cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-071.c ? absolute maximum ratings parameter symbol ratings unit supply voltage v cc -0.5v ~ 7v v input clamp current for v in < 0 or v in > v cc i ik 20 ma output clamp current for v out < 0 or v out > v cc i ok 20 ma continuous output current for v out = 0 to v cc i out 25 ma v cc or ground current i cc 50 ma storage temperature t stg -65 ~ +150 note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? thermal data parameter symbol ratings unit dip-14 80 /w sop-14 76 /w thermal resistance junction ambient tssop-14 ja 113 /w ? recommended operating conditions parameter symbol conditions min typ max unit supply voltage range hc types v cc 2 5 6 v input or output voltage v in , v out 0 v cc v operating temperature t a -40 85 ? electrical characteristics ( t a = 25 ) parameter symbol test conditions min typ max unit v cc =2v 0.7 1.2 1.5 v cc =4.5v 1.55 2.5 3.15 v ih v cc =6v 2.1 3.3 4.2 v cc =2v 0.3 0.6 1 v v cc =4.5v 0.9 1.6 2.45 v v il v cc =6v 1.2 2 3.2 v v cc =2v 0.2 0.6 1.2 v v cc =4.5v 0.4 0.9 2.1 v input switch points v th v cc =6v 0.5 1.3 2.5 v v in =v ih or v il , v cc =2v, i oh =-0.02ma 1.9 v v in =v ih or v il , v cc =4.5v, i oh =-0.02ma 4.4 v high level output voltage cmos loads v in =v ih or v il , v cc =6v, i oh =-0.02ma 5.9 v v in =v ih or v il , v cc =4.5v, i oh =-4 ma 3.98 v high level output voltage ttl loads v oh v in =v ih or v il , v cc =6v, i oh =-5.2 ma 5.48 v v in =v ih or v il , v cc =2v, i ol =0.02 ma 0.1 v v in =v ih or v il , v cc =4.5v, i ol =0.02 ma 0.1 v low level output voltage cmos loads v in =v ih or v il , v cc =6v, i ol =0.02 ma 0.1 v v in =v ih or v il , v cc =4.5v, i ol =4 ma 0.26 v low level output voltage ttl loads v ol v in =v ih or v il , v cc =6v, i ol =5.2 ma 0.26 v input leakage current i in v in =v cc and gnd, v cc =6v 0.1 a quiescent device current i q v in =v cc or gnd, v cc =6v, i out =0 2 a ? switching specifications (t a = 25 , input t r , t f = 6ns) parameter symbol test conditions min typ max unit v cc =2v, c l =50pf 55 125 ns v cc =4.5v, c l =50pf 12 25 ns propagation delay, a to y t plh , t phl v cc =6v, c l =50pf 11 21 ns v cc =2v, c l =50pf 38 75 ns v cc =4.5v, c l =50pf 8 15 ns output transition times t tlh , t thl v cc =6v, c l =50pf 6 13 ns input capacitance c in 3 10 pf power dissipation capacitance c pd no load 20 pf
u74hc14 cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-071.c ? test circuit and waveforms input 90% 50% 10% t r =6ns t f =6ns inverting output t thl t tlh 90% 50% 10% t plh t phl transition times and propagation delay times, combination logic utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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