unisonic technologies co., ltd U74AHCT00 cmos ic www.unisonic.com.tw 1 of 4 copyright ? 2010 unisonic technologies co., ltd qw-r502-429.a quadruple 2-input positive-nand gate ? description the U74AHCT00 is a quadruple 2-input nand gate which performs the function y=a*b or + y=a b . ? features * low power dissipation: i cc = 2.0 a (max.) * high speed: t pd = 5ns (typ.) * high noise immunity ? ordering information ordering number package packing U74AHCT00g-s14-r sop-14 tape reel sop-14
U74AHCT00 cmos ic unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw qw-r502-429.a ? pin configuration 1a gnd v cc 1b 1y 2a 2b 2y 4b 4a 4y 3b 3a 3y 1 2 3 4 5 6 7 14 13 12 11 10 9 8 ? function table (each gate) inputs output a b y l l h l h h h l h h h l ? logic diagram (positive logic) a b y a b y logic symbol iec symbol
U74AHCT00 cmos ic unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw qw-r502-429.a ? absolute maximum rating (note) 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 current i out 25 ma v cc or gnd current i cc 50 ma storage temperature t stg -65 ~ +150 c note: 1. the input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device operation is not implied. ? recommended operating conditions parameter symbol conditions min typ max unit supply voltage v cc 4.5 5.5 v input voltage v in 0 5.5 v output voltage v out 0 v cc v input transition rise or fall rate t r / t f v cc =5.0+0.5v 20 ns/v operating temperature t a -40 85 c ? static characteristics parameter symbol test conditions min typ max unit high-level input voltage v ih v cc = 4.5~5.5 v 2.0 v low-level input voltage v il v cc = 4.5~5.5 v 0.8 v v cc = 4.5v, i oh = -50 a 4.4 4.5 high-level output voltage v oh v cc = 4.5v, i oh = -8 ma 3.94 v v cc = 4.5v, i ol = 50 a 0.1 low-level output voltage v ol v cc = 4.5v, i ol = 8 ma 0.36 v input leakage current i i(leak) v cc = 0~5.5v, v in = v cc 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 additional quiescent supply current i q v cc = 5.5v, v in = 3.4v; other input at v cc or gnd; i out =0 1.35 ma input capacitance c in v cc = 5v, v in = v cc or gnd 2 10 pf ? dynamic characteristics (t r , t f 3 ns;) parameter symbol test conditions min typ max unit t plh 5 6.9 t phl v cc =50.5 v, c l =15 pf 5 6.9 t plh 5.5 7.9 propagation delay from input (a and b) to output (y) t phl v cc =50.5 v, c l =50 pf 5.5 7.9 ns ? operating characteristics v cc = 5v; t a = 25 parameter symbol test conditions typ unit power dissipation capacitance c pd no load, f=1mhz 10.5 pf
U74AHCT00 cmos ic unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw qw-r502-429.a ? test circuit and waveform note: c l includes probe and jig capacitance. 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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