unisonic technologies co., ltd U74LVC125A cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2010 unisonic technologies co., ltd qw-r502-182.c quadruple bus buffer gate with 3-state outputs ? description the U74LVC125A consists of four bus buffers with 3-state output controlled by enable input ( ? ), when ? is high, the output is disable. inputs can be driven from either 3.3v or 5v devices, so the device can be used in a mix 3.3v/5v system. ? features * operation voltage range: 1.65~3.6v * low power dissipation * input accept voltage to 5.5v ? ordering information ordering number lead free halogen free package packing U74LVC125Al-s14-r U74LVC125Ag-s14-r sop-14 tape reel U74LVC125Al-p14-r U74LVC125Ag-p14-r tssop-14 tape reel
U74LVC125A cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-182.c ? pin configuration ? function table (each gate) input output ? a y l l l l h h h x z ? logic diagram (positive logic)
U74LVC125A cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-182.c ? absolute maximum ratings 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 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 power dissipation p d 500 mw storage temperature t stg -65 ~ +150 note : absolute maximum ratings are those values be yond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? recommended operating conditions parameter symbol conditions min typ max unit operating 1.65 3.6 v supply voltage v cc data retention only 1.5 input voltage v in 0 5.5 v output voltage v out 0 v cc v input rise or fall times t r , t f 8 ns/v operating temperature t a -40 125 ? static characteristics (ta=25c) parameter symbol test conditions min typ max unit v cc =1.65v ~ 1.95v 0.65* v cc v v cc =2.3v ~ 2.7v 1.7 v high-level input voltage v ih v cc =2.7v ~ 3.6v 2 v v cc =1.65v ~ 1.95v 0.35* v cc v v cc =2.3v ~ 2.7v 0.7 v low-level input voltage v il v cc =2.7v ~ 3.6v 0.8 v v cc =1.65v ~ 3.6v, i oh =-100 a v cc -0.2 v v cc =1.65v, i oh =-4ma 1.29 v v cc =2.3v, i oh =-8ma 1.9 v v cc =2.7v, i oh =-12ma 2.2 v v cc =3v, i oh =-12ma 2.4 v high-level output voltage v oh v cc =3v, i oh =-24ma 2.3 v v cc =1.65v ~ 3.6v, i ol =100 a 0.1 v v cc =1.65v, i ol =4ma 0.24 v v cc =2.3v, i ol =8ma 0.3 v v cc =2.7v, i ol =12ma 0.4 v low-level output voltage v ol v cc =3v, i ol =24ma 0.55 v input leakage current i i(leak) v cc =3.6v, v in =5.5v or gnd 1 a output off-state current i oz v cc =3.6v, v out =v cc or gnd 1 a quiescent supply current i q v cc =3.6v, v in =v cc or gnd i out =0 1 a additional quiescent supply current i q v cc =2.7v~3.6v, 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 5 pf
U74LVC125A cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-182.c ? dynamic characteristics (t a =25 ) parameter symbol test conditions min typ max unit v cc = 1.8v0.15v 1 4.5 11.8 ns v cc = 2.5v0.2v 1 2.7 5.8 ns v cc = 2.7v 1 3 5.3 ns propagation delay from input (a) to output (y) t plh /t phl v cc = 3.3v0.3v 1 2.5 4.6 ns v cc = 1.8v0.15v 1 4.3 13.8 ns v cc = 2.5v0.2v 1 2.7 6.9 ns v cc = 2.7v 1 3.3 6.4 ns propagation delay from input ( ? ) to output (y) t pzl /t pzh v cc = 3.3v0.3v 1 2.4 5.2 ns v cc = 1.8v0.15v 1 4.3 10.6 ns v cc = 2.v50.2v 1 2.2 5.1 ns v cc = 2.7v 1 2.5 4.8 ns propagation delay from input ( ? ) to output (y) t plz /t phz v cc = 3.3v0.3v 1 2.4 4.4 ns ? operating characteristics (t a =25 ) parameter symbol test conditions min typ max unit v cc =1.8v, f=10mhz 7.4 pf v cc =2.5v, f=10mhz 11.3 pf power dissipation capacitance cpd v cc =3.3v, f=10mhz 15 pf
U74LVC125A cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-182.c ? 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 1.8v0.15v v cc 2ns v cc /2 2* v cc 30pf 1k ? 0.15v 2.5v0.2v v cc 2ns v cc /2 2* v cc 30pf 500 ? 0.15v 2.7v 2.7v 2.5ns 1.5v 6v 50pf 500 ? 0.3v 3.3v0.3v 2.7 v 2.5ns 1.5v 6v 50pf 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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