unisonic technologies co., ltd u74hc08 cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2012 unisonic technologies co., ltd qw-r502-236.d quad 2-input and gates ? description the u74hc08 contains four independent 2-input and gates, perform the boolean function y = a ? b or y = in positive lo g ic. a+b ? features * operation voltage range: 2~6v * low quiescent current: i cc =2a (max) * high speed: t pd =8ns(typ) * low input current: 100na (max) dip-14 sop-14 tssop-14 ? ordering information ordering number package packing lead free halogen free u74hc08l-s14-r u74hc08g-s14-r sop-14 tape reel u74hc08l-s14-t u74hc08g-s14-t sop-14 tube U74HC08L-D14-T u74hc08g-d14-t dip-14 tube u74hc08l-p14-r u74hc08g-p14-r tssop-14 tape reel u74hc08l-p14-t u74hc08g-p14-t tssop-14 tube
u74hc08 cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-236.d ? pin configuration 1a 1b 1y 2a 2b 2y gnd v cc 4b 4a 4y 3b 3a 3y 1 2 3 4 5 6 7 14 13 12 11 10 9 8 ? function table (each gate) input ( a ) input ( b ) output ( y ) h h h h l l l h l l l l ? logic diagram (positive logic)
u74hc08 cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-236.d ? absolute maximum rating parameter symbol ratings unit supply voltage v cc -0.5~7 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: 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 junction to case sop-14 jc 86 c/w dip-14 80 tssop-14 113 ? recommended operating conditions parameter symbol test conditions min typ max unit supply voltage v cc 2 6 v input voltage v in 0 vcc v output voltage v out 0 v cc v input transition rise or fall rate t r , t f v cc =2v 1000 ns v cc =4.5v 500 v cc =6v 400 ambient operating temperature t opr -40 85 c ? static characteristics (t a = 25 ) parameter symbol min typ max unit high-level input voltage v ih v cc = 2 v 1.5 v v cc = 4.5v 3.15 v cc = 6 v 4.2 low-level input voltage v il v cc = 2 v 0.5 v v cc = 4.5 v 1.35 v cc = 6 v 1.8 high-level output voltage v oh v cc = 2v, i oh = 20a 1.9 1.998 v v cc = 4.5v, i oh = 20a 4.4 4.999 v cc = 6v, i oh = 20a 5.9 5.999 v cc = 4.5v, i oh = 4ma 3.98 4.3 v cc = 6v, i oh = 5.2ma 5.48 5.8 low-level output voltage v ol v cc = 2v, i ol = 20a 0.002 0.1 v v cc = 4.5v, i ol = 20a 0.001 0.1 v cc = 6v, i ol = 20a 0.001 0.1 v cc = 4.5v, i ol = 4ma 0.17 0.26 v cc = 6v, i ol = 5.2ma 0.15 0.26 input leakage current i i ( leak ) v cc = 6v ,v in = v cc or gnd 0.1 100 na quiescent supply current i q v cc = 6v, v in = v cc or gnd, i out = 0 2 a input capacitance c in v cc =2v~6v 3 10 pf
u74hc08 cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-236.d ? dynamic characteristics (t a =25 , input: t r =t f =6ns, unless otherwise specified ) parameter symbol test conditions min typ max unit propagation delay from input(a or b) to output(y) t plh , t phl v cc =2v, c l =50pf 50 100 ns v cc =4.5v, c l =50pf 10 20 v cc =6v, c l =50pf 8 17 output transition time t t v cc =2v 38 75 ns v cc =4.5v 8 15 v cc =6v 6 13 ? operating characteristics (t a =25 , unless otherwise specified) parameter symbol test condition ratings unit power dissipation capacitance c pd no load 20 pf
u74hc08 cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-236.d ? test circuit and waveforms output c l (note) 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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