unisonic technologies co., ltd u74lvc34a cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2010 unisonic technologies co., ltd qw-r502-411. ba hex buffer ? description the u74lvc34a is a hex buffer device providing, it provides the function y = a. this device has power-down protective circuit to prevent the device from destruction. ? features * operation voltage range: 1.65~5.5v * low power dissipation * 24ma output drive(v cc =3.3v) * high noise immunity * power down protection ? ordering information ordering number package packing U74LVC34AL-P14-R u74lvc34ag-p14-r tssop-14 tape reel
u74lvc34a cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-411. ba ? pin configuration 7 6 5 4 3 2 1 12 11 10 8 9 13 14 1a 1y 2a 2y 3a 3y v cc 6a 5a 4a 5y 6y gnd 4y ? function table (each gate) input(a) output(y) l l h h note: h=high level, l=low level ? logic symbol (each gate) iec logic symbol
u74lvc34a cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-411. ba ? absolute maximum rating (unless otherwise specified) parameter symbol ratings unit supply voltage v cc -0.5~6.5 v input voltage v in -0.5~6.5 v output voltage(active mode) v out -0.5~v cc +0.5 v output voltage(power-down mode) v out -0.5~6.5 v input clamp current(v in <0) i ik -50 ma output clamp current(v o <0) i ok -50 ma output current i out 50 ma v cc or gnd current i cc 100 ma storage temperature t stg -65 ~ +150 note 1. 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. 2. the input and output voltage ratings may be exceeded if the input and output current ratings are observed. ? recommended operating conditions parameter symbol conditions min typ max unit operating 1.65 5.5 v supply voltage v cc data retention only 1.5 v input voltage v in 0 5.5 v output voltage v out 0 v cc v operating temperature t a -40 85 v cc =1.8v+ 0.15v,2.5v+ 0.2v 20 ns/v v cc =3.3v+ 0.3v 10 ns/v input transition rise or fall rate t r / t f v cc =5v+ 0.5v 5 ns/v ? static characteristics ( t a =-40~85 ) parameter symbol test conditions min typ max unit v cc = 1.65~1.95v 0.65* v cc v cc = 2.3~2.7 v 1.7 v cc = 2.7~3.6 v 2 positive-going input threshold voltage v t+ v cc = 4.5~5.5 v 0.7* v cc v v cc = 1.65~1.95 v 0.35* v cc v cc = 2.3~2.7 v 0.7 v cc = 2.7~3.6 v 0.8 negative-going input threshold voltage v t- v cc = 4.5~5.5 v 0.3* v cc v v cc = 1.65~5.5 v i oh =-100 a v cc -0.1 v cc = 1.65 v i oh =-4ma 1.2 v cc = 2.3 v i oh =-8ma 1.9 v cc = 3 v i oh =-16ma 2.4 v cc = 3 v i oh =-24ma 2.3 high-level output voltage v oh v cc = 4.5 v i oh =-32ma 3.8 v v cc = 1.65~5.5 v i ol =100 a 0.1 v cc = 1.65 v i ol =4ma 0.45 v cc = 2.3 v i ol =8ma 0.3 v cc = 3 v i ol =16ma 0.4 v cc = 3 v i ol =24ma 0.55 low-level output voltage v ol v cc = 4.5 v i ol =32ma 0.55 v input leakage current i i(leak) v in =5.5v or gnd, v cc = 3.6v 1 a power off leakage current i off v in or v o =5.5v, v cc = 0 v 10 a quiescent supply current i q v in =5.5 or gnd, i out =0 v cc = 1.65 ~ 5.5 v 10 a additional quiescent supply current i q one input at v cc - 0.6v, other inputs at v cc or gnd v cc = 3 ~ 5.5 v 500 a input capacitance c i v in =v cc or gnd, v cc = 3.3 v 3.5 pf
u74lvc34a cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-411. ba ? dynamic characteristics parameter symbol test conditions min typ max unit v cc = 1.8 0.15v 2 9.9 v cc = 2.5 0.2v 1.5 6 v cc = 3.3 0.3v 1 3.5 v cc = 5 0.5v c l =15pf, rl=1m ? 1 2.9 v cc = 1.8 0.15v rl=1k ? 3.2 8.6 v cc = 2.5 0.2v c l =30pf rl=500 ? 1.5 4.4 v cc = 3.3 0.3v 1.5 4.1 propagation delay from input (na or nb) to output(ny) t plh / t phl v cc = 5 0.5v c l =50pf, rl=500 ? 1 3.2 ns ? operating characteristics parameter symbol test conditions min typ max unit v cc =1.8v 16 v cc =2.5v 16 v cc =3.3v 16 power dissipation capacitance c pd v cc =5v f=10mhz 18 pf
u74lvc34a cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-411. ba ? test circuit and waveforms note: c l includes probe and jig capacitance. v cc v in t r , t f v m v load c l r l v 15pf 1m ? 1.8v 0.15v v cc 2ns v cc /2 2* v cc 30 pf 1k ? 0.15v 15pf 1m ? 2.5v 0.2v v cc 2ns v cc /2 2* v cc 30 pf 500 ? 0.15v 15pf 1m ? 3.3v 0.3v 3 v 2.5ns 1.5v 6v 50 pf 500 ? 0.3v 15pf 1m ? 5v 0.5v v cc 2.5ns v cc /2 2* v cc 50 pf 500 ? 0.3v 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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