unisonic technologies co., ltd u74lvc1g125 cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2011 unisonic technologies co., ltd qw-r502-408.c bus buffer/line driver 3-state ? description the u74lvc1g125 is a single bus buffer/line driver with 3-state output. when the output enable ( ? ) is high the output will be disabled. in contrast, when the ? is low, true data will pass from a input to the y output. this device has power-down protective circuit to prevent the device from destruction when it is powered down. ? features * operate from 1.65v to 5.5v * inputs accept voltages to 5.5v * high noise immunity * low power dissipation * direct interface with ttl level ? ordering information ordering number package packing lead free halogen free U74LVC1G125L-AE5-R u74lvc1g125g-ae5-r sot-23-5 tape reel u74lvc1g125l-af5-r u74lvc1g125g-af5-r sot-25 tape reel u74lvc1g125l-al5-r u74lvc1g125g-al5-r sot-353 tape reel ? marking 3l5 3 2 1 4 5 g: halogen free l:lead free
u74lvc1g125 cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-408.c ? pin configuration 3 2 1 4 5 oe a gnd y v cc ? function table input( ? ) input(a) output(y) l l l l h h h x z note: h: high voltage level; l: low voltage level; x=don?t ca re; z=high-impedance off-state. ? logic diagram (positive logic) logic symbol iec logic symbol
u74lvc1g125 cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-408.c ? 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 enable mode v out -0.5 ~ v cc + 0.5 v disable mode -0.5 ~ +6.5 v power-down mode -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 >v cc or v out <0) i ok 50 ma power dissipation (t a =-40c ~ +125c) sot-23-5 p d 300 mw sot-25 360 sot-353 250 operating temperature t opr -40 ~ + 125 c 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 oper ation is not implied. ? recommended operating conditions parameter symbol test conditions min typ max unit supply voltage v cc operating 1.65 5.5 v input voltage v in 0 5.5 v output voltage v out v cc =1.65v ~ 5.5v; enable mode 0 v cc v v cc =1.65v ~ 5.5v; disable mode 0 5.5 v v cc =0v; power-down mode 0 5.5 v input transition rise or fall rate t r /t f v cc =1.65v ~ 2.7v 20 ns/v v cc =2.7v ~ 5.5v 10 ns/v
u74lvc1g125 cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-408.c ? electrical characteristics ( t a =25 c , 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 =2.7v ~ 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 =2.7v ~ 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 =-12ma v cc =2.7v 2.2 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 =12ma v cc =2.7v 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 =5.5v 0.1 5 a power off leakage current i off v in or v out =5.5v, v cc =0v 0.1 10 a 3-state output off-state current i oz v in =v ih or v il , v out =v cc or gnd, v cc =5.5v 0.1 10 a quiescent supply current i q v in =v cc or gnd, i out =0, v cc =5.5v 0.1 10 a additional quiescent supply current per input pin i q v cc =2.3 ~ 5.5v, v in =v cc -0.6v, i out =0 5 500 a ? 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, r l =1k ? c l =30pf 1.0 3.3 8.0 ns v cc =2.50.2v , r l =500 ? 0.5 2.2 5.5 ns v cc =2.7v, c l =50pf, r l =500 ? 0.5 2.5 5.5 ns v cc =3.30.3v 0.5 2.1 4.5 ns v cc =50.5v 0.5 1.7 4.0 ns 3-state output enable time from input ? to output y t pzh / t pzl v cc =1.80.15v, r l =1k ? c l =30pf 1.0 4.1 9.4 ns v cc =2.50.2v, r l =500 ? 0.5 2.8 6.6 ns v cc =2.7v c l =50pf, r l =500 ? 0.5 3.3 6.6 ns v cc =3.30.3v 0.5 2.4 5.3 ns v cc =50.5v 0.5 2.1 5.0 ns 3-state output disable time from input ? to output y t plz / t phz v cc =1.80.15v, r l =1k ? c l =30pf 1.0 4.3 9.2 ns v cc =2.50.2v, r l =500 ? 0.5 2.7 5.0 ns v cc =2.7v c l =50pf, r l =500 ? 0.5 3.0 5.0 ns v cc =3.30.3v 0.5 3.1 5.0 ns v cc =50.5v 0.5 2.2 4.2 ns
u74lvc1g125 cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-408.c ? test circuit and waveforms from output r l v load gnd open s test t plh /t phl t phz /t pzh t plz /t pzl s open gnd v load c l r l v cc inputs v m v load v c l r l v in t r , t f 1.8v0.15v v cc 2ns v cc /2 2 x v cc 0.15v 30pf 1k ? 2.5v0.2v v cc 2ns v cc /2 2 x v cc 0.15v 30pf 500 ? 2.7v 2.7v 2.5ns 1.5v 6v 0.3v 50pf 500 ? 3.3v0.3v 2.7v 2.5ns 1.5v 6v 0.3v 50pf 500 ? 5v0.5v v cc 2.5ns v cc /2 2 x v cc 0.3v 50pf 500 ? 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.
|
