unisonic technologies co., ltd u74lvc1g34 cmos ic www.unisonic.com.tw 1 of 6 copyright ? 2011 unisonic technologies co., ltd qw-r502-124.e single buffer gate ? description the u74lvc1g34 is a single buffer, it provides the function y = a. this device has power-down protective circuit, preventing device destruction when it is powered down. ? features * operate from 1.65v to 5.5v * inputs accept voltages to 5.5v * i off supports partial-power-down mode * low power dissipation * max t pd of 3.5 ns at 3.3v ? ordering information ordering number package packing lead free halogen free u74lvc1g34l-af5-l U74LVC1G34G-AF5-L sot-25 tape reel(reserve feed) u74lvc1g34l-af5-r u74lvc1g34g-af5-r sot-25 tape reel(standard feed) u74lvc1g34l-al5-r u74lvc1g34g-al5-r sot-353 tape reel ? marking
u74lvc1g34 cmos ic unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw qw-r502-124.e ? pin configuration ? function table input ( a ) output ( y ) h h l l note: h: high voltage level; l: low voltage level. ? logic diagram (positive logic) logic symbol iec logic symbol
u74lvc1g34 cmos ic unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw qw-r502-124.e ? absolute maximum rating (t a =25c , 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 output in the high or low state v out -0.5 ~ v cc +0.5 v output in the high-impedance or power-off state -0.5 ~ +6.5 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 operating temperature t opr -40 ~ + 85 c storage temperature range 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 junctions to ambient sot-25 ja 230 c/w sot-353 350 ? recommended operating conditions parameter symbol test conditions min typ max unit supply voltage v cc operating 1.65 5.5 v data retention only 1.5 v input voltage v in 0 5.5 v output voltage v out high or low state 0 v cc v high-level output current i oh v cc =1.65v -4 ma v cc =2.3v -8 ma v cc =3v -16 ma v cc =3v -24 ma v cc =4.5v -32 ma low-level output current i ol v cc =1.65v 4 ma v cc =2.3v 8 ma v cc =3v 16 ma v cc =3v 24 ma v cc =4.5v 32 ma input transition rise or fall rate t r / t f v cc =1.8v0.15v, 2.5v0.2v 20 ns/v v cc =3.3v0.3v 10 ns/v v cc =5v0.5v 10 ns/v
u74lvc1g34 cmos ic unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw qw-r502-124.e ? electrical characteristics (t a =25c , unless otherwise specified) parameter symbol test conditions min typ max unit high-level input voltage v ih v cc =1.65v ~ 1.95v 0.65*v cc v v cc =2.3v ~ 2.7v 1.7 v v cc =3v ~ 3.6v 2 v v cc =4.5v ~ 5.5v 0.7*v cc v low-level input voltage v il v cc =1.65v ~ 1.95v 0.35*v cc v v cc =2.3v ~ 2.7v 0.7 v v cc =3v ~ 3.6v 0.8 v v cc =4.5v ~ 5.5v 0.3*v cc v high-level output voltage v oh i oh =-100 a v cc =1.65 ~ 5.5v v cc -0.1 v i oh =-4ma v cc =1.65v 1.2 v i oh =-8ma v cc =2.3v 1.9 v i oh =-16ma v cc =3.0v 2.4 v i oh =-24ma v cc =3.0v 2.3 v i oh =-32ma v cc =4.5v 3.8 v low-level output voltage v ol i ol =100 a v cc =1.65 ~ 5.5v 0.1 v i ol =4ma v cc =1.65v 0.45 v i ol =8ma v cc =2.3v 0.3 v i ol =16ma v cc =3.0v 0.4 v i ol =24ma v cc =3.0v 0.55 v i ol =32ma v cc =4.5v 0.55 v input leakage current i i ( leak ) v in =5.5v or gnd, v cc =0 ~ 5.5v 1 a power off leakage current i off v in or v out =5.5v, v cc =0v 10 a quiescent supply current i q v in =5.5v or gnd, i out =0 v cc =1.65 ~ 5.5v 10 a additional quiescent supply current per input pin i q v cc =3 ~ 5.5v, one input at v cc -0.6v, other inputs at v cc or gnd 500 a input capacitance c in v cc =3.3v, v in =v cc or gnd 3.5 pf ? switching characteristics (t a =25 ) parameter symbol test conditions min typ max unit propagation delay from input (a) to output(y) t plh / t phl v cc =1.80.15v c l =15pf, r l =1m ? 2 9.9 ns v cc =2.50.2v 1.5 6 ns v cc =3.30.3v 1 3.5 ns v cc =50.5v 1 2.9 ns propagation delay from input (a) to output(y) t plh / t phl v cc =1.80.15v, r l =1k ? c l =30pf 3.2 8.6 ns v cc =2.50.2v, r l =500 ? 1.5 4.4 ns v cc =3.30.3v c l =50pf, r l =500 ? 1.5 4.1 ns v cc =50.5v 1 3.2 ns ? operating characteristics (t a =25 ) parameter symbol test conditions min typ max unit power dissipation capacitance c pd v cc =1.8v f=10mh z 16 pf v cc =2.5v 16 pf v cc =3.3v 16 pf v cc =5v 18 pf
u74lvc1g34 cmos ic unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw qw-r502-124.e ? test circuit and waveforms from output c l r l note: c l includes probe and jig capacitance. all input pulses are supplied by generators having the following characteristics: p rr 10mhz, z o = 50 ? . v cc inputs v m c l r l v in t r , t f 1.8v0.15v v cc 2ns v cc /2 15pf 1m ? 2.5v0.2v v cc 2ns v cc /2 15pf 1m ? 3.3v0.3v 3v 2.5ns 1.5v 15pf 1m ? 5v0.5v v cc 2.5ns v cc /2 15pf 1m ?
u74lvc1g34 cmos ic unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw qw-r502-124.e ? test circuit and waveforms(cont.) from output c l r l note: c l includes probe and jig capacitance. all input pulses are supplied by generators having the following characteristics: p rr 10mhz, z o = 50 ? . 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. v cc inputs v m c l r l v in t r , t f 1.8v0.15v v cc 2ns v cc /2 30pf 1k ? 2.5v0.2v v cc 2ns v cc /2 30pf 500 ? 3.3v0.3v 3v 2.5ns 1.5v 50pf 500 ? 5v0.5v v cc 2.5ns v cc /2 50pf 500 ?
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