unisonic technologies co., ltd u74ahc14 cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2013 unisonic technologies co., ltd qw-r502-386.b hex schmitt-trigger inverters ? description the u74ahc14 is hex schmitt-trigger inverters and each inverter provides the function y= a . ? features * operation voltage range: 2v~5.5v * max t p d of 8.6ns at 5 v(cl=15pf) * high noise immunity * low power dissipation ? ordering information ordering number package packing lead free halogen free u74ahc14l-s14-t u74ahc14g-s14-t sop-14 tube u74ahc14l-s14-r u74ahc14g-s14-r sop-14 tape reel u74ahc14l-p14-t u74ahc14g-p14-t tssop-14 tube U74AHC14L-P14-R u74ahc14g-p14-r tssop-14 tape reel
u74ahc14 cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-386.b ? 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 ? function table (each gate) input a output y l h h l note: h: high voltage level; l: low voltage level. ? logic symbol
u74ahc14 cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-386.b ? absolute maximum rating (unless otherwise specified) parameter symbol ratings unit supply voltage v cc -0.5 ~ +7 v input voltage v in -0.5 ~ +7 v output voltage v out -0.5 ~ v cc +0.5 v input clamp current i ik -20 ma output clamp current i ok 20 ma output sink current i out 25 ma v cc or gnd current i cc 50 ma storage temperature t stg -65 ~ + 150 c 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 thermal resistance junction-ambient sop-14 ja 86 c/w tssop-14 113 c/w ? recommended operating conditions parameter symbol conditions min typ max unit s upply voltage v cc 2.0 5.5 v i nput voltage v in 0 5.5 v o utput voltage v out 0 v cc v h igh-level input current i oh v cc =2v -50 a v cc =3.3v0.3v -4 ma v cc =5v0.5v -8 ma l o w -level input current i ol v cc =2v 50 a v cc =3.3v0.3v 4 ma v cc =5v0.5v 8 ma o perating temperature t a -40 +85 c
u74ahc14 cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-386.b ? static characteristics (t a =25c) parameter symbol test conditions min typ max unit positive-going input threshold voltage v t+ v cc =3.0v 1.2 2.2 v v cc =4.5v 1.75 3.15 v v cc =5.5v 2.15 3.85 v negative-going input threshold voltage v t- v cc =3.0v 0.9 1.9 v v cc =4.5v 1.35 2.75 v v cc =5.5v 1.65 3.35 v hysteresis(v t+ -v t- ) ? v t v cc =3.0v 0.3 1.2 v v cc =4.5v 0.4 1.4 v v cc =5.5v 0.5 1.6 v high-level output voltage v oh i oh =-50 a v cc =2.0v 1.9 v v cc =3.0v 2.9 v v cc =4.5v 4.4 v i oh =-4 ma v cc =3.0v 2.58 v i oh =-8ma v cc =4.5v 3.94 v low-level output voltage v ol i ol =50 a v cc =2.0v 0.1 v v cc =3.0v 0.1 v v cc =4.5v 0.1 v i ol =4 ma v cc =3.0v 0.36 v i ol =8ma v cc =4.5v 0.36 v input leakage current i i ( leak ) v cc =0v to 5.5v,v in =5.5v or gnd 0.1 a quiescent supply current i q v cc =5.5v,v in =v cc or gnd,i out =0 2 a input capacitance c i v in =v cc or gnd 2 10 pf ? switching characteristics (t a =25c) parameter symbol test conditions min typ max unit propagation delay, from input(a) to output(y) t plh /t phl v cc =3.30.3 v c l =15 pf 8.3 12.8 ns c l =50 pf 10.8 16.3 ns t plh /t phl v cc =5.00.5 v c l =15 pf 5.5 8.6 ns c l =50 pf 7 10.6 ns ? operating characteristics (t a =25 ) parameter symbol test conditions min typ max unit power dissipation capacitance c pd no load, f=1mhz 9 pf
u74ahc14 cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-386.b ? test circuit and waveforms test circuit for measuring propagation delay waveforms showing the input(a) to output(y) propagation delays note: c l includes probe and jig capacitance. all input pulses are supplied by generators having the following characteristics: prr 1mhz, zo = 50 ? , tr 3ns, tf 3ns. 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.
|
