unisonic technologies co., ltd u74lvc08a cmos ic www.unisonic.com.tw 1 of 6 copyright ? 2010 unisonic technologies co., ltd qw.-r502-455.b quad 2-input and gate ? description the u74lvc08a contains four independent 2-input and gates, perform the boolean function y = a ? b in positive logic . ? features * operate from 1.65 v to 3.6v * direct interface with ttl levels * low power dissipation * inputs accept voltages up to 5.5v ? ordering information ordering number lead free halogen free package packing U74LVC08AL-S14-R u74lvc08ag-s14-r sop-14 tape reel u74lvc08al-p14-r u74lvc08ag-p14-r tssop-14 tape reel
u74lvc08a cmos ic unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw qw.-r502-455.b ? pin configuration ? function table (each gate) input(na) input(nb) output(ny) h h h h l l l h l l l l note: h: high voltage level; l: low voltage level. ? logic diagram (positive logic) ? logic diagram
u74lvc08a cmos ic unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw qw.-r502-455.b ? absolute maximum rating parameter symbol ratings unit supply voltage v cc -0.5 ~ +6.5 v input voltage v in -0.5 ~ +6.5 v output voltage v out -0.5 ~ v cc +0.5 v v cc or gnd current i cc 100 ma continuous output current (v out =0 to v cc ) i out 50 ma input clamp current (v in <0 ) i ik -50 ma output clamp current (v out < 0 ) i ok -50 ma power dissipation ( t opr = -40c ~ +125c ) p d 500 mw storage temperature t stg -65 ~ + 150 c note: absolute maximum ratings are those values beyo nd 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 ratings unit supply voltage v cc +1.65 ~ 3.6 v input voltage v in 0 ~ 5.5 v output voltage (high or low state) v out 0 ~ v cc v ambient operating temperature t opr -40 ~ 85 c input rise or fall times t r / t f 8 ns/v ? thermal data parameter symbol ratings unit junction to ambient ja 113 c/w ? electrical characteristics (ta=25 c , unless otherwise specified) parameter symbol test conditions min typ max unit v cc = 1.65v~1.95v 0.65*vcc v v cc = 2.3v ~ 2.7v 1.7 v high-level input voltage v ih v cc = 2.7v ~ 3.6v 2 v cc = 1.65v~1.95v 0.35*vcc v v cc = 2.3v ~ 2.7v 0.7 v low-level input voltage v il v cc = 2.7v ~ 3.6v 0.8 i oh =-100 av cc =1.65v~3.6v v cc -0.2 v i oh =-4ma v cc =1.65v 1.29 v i oh =-8ma v cc =2.3v 1.9 v cc =2.7v 2.2 i oh =-12ma v cc =3.0v 2.4 v high-level output voltage v oh i oh =-24ma v cc =3.0v 2.3 v i oh =100 a v cc =1.65v~3.6v 0.1 v i oh =-4ma v cc =1.65v 0.24 i oh =-8ma v cc =2.3v 0.3 i oh =12ma v cc =2.7v 0.4 v low-level output voltage v ol i oh =24ma v cc =3.0v 0.55 v input leakage current i i(leak) vi=5.5v or gnd v cc =3.6v 1 a quiescent supply current i q v in =5.5v or gnd i out =0 v cc =3.6v 1 a additional quiescent supply current per input pin i q one input at v in =v cc ? 0.6v, other input at vcc or gnd v cc =2.7v~3.6v 500 a input capacitance c in v in = v cc or gnd, v cc = 3.3v 5 pf
u74lvc08a cmos ic unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw qw.-r502-455.b ? switching characteristics parameter symbol test conditions min typ max unit v cc =1.8v0.15v c l =30pf, r l =1k ? 1 5 9.3 v cc =2.5v0.2v c l =30pf, r l =500 ? 1 2.9 6.4 v cc =2.7v 1 3 4.6 propagation delay from input (na or nb) to output(ny) t pd v cc =3.3v0.3v c l =50 pf, r l =500 ? 1 2.6 3.9 ns ? operating characteristics parameter symbol test conditions min typ max unit v cc =1.8v 7 v cc =2.5v 9.8 power dissipation capacitance c pd f =1mhz, no load v cc =3.3v 10 pf
u74lvc08a cmos ic unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw qw.-r502-455.b ? test circuit and waveforms inputs v cc v in t r , t f v m c l r l v cc =1.8v0.15v v cc 2ns v cc /2 30pf 1k ? v cc =2.5v0.2v v cc 2ns v cc /2 30pf 500 ? v cc =2.7v 2.7v 2.5ns 1.5v 50pf 500 ? v cc =3.3v0.3v, 2.7v 2.5ns 1.5v 50pf 500 ? note: c l includes probe and jig capacitance. all input pulses are supplied by generators having the following characteristics: prr 10mhz, zo = 50 ? , t r 2.5ns, t f 2.5ns.
u74lvc08a cmos ic unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw qw.-r502-455.b 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.
|
