unisonic technologies co., ltd u74lvc1g126 cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2015unisonic technologies co., ltd qw-r502-398.d bus buffer/line driver; 3-state ? description the u74lvc1g126 is single bus buffer/line driver with 3-state output. the output is disabled w hen the output enable (oe) is low. when oe is high, true data is will pass a input to the y output. this device has power-down protec tive circuit preventing 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 u74lvc1g126-ae5-r sot-23-5 tape reel U74LVC1G126-AF5-R sot-25 tape reel u74lvc1g126-al5-r sot-353 tape reel ? marking
u74lvc1g126 cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-398.d ? pin configuration 3 2 1 4 5 oe a gnd y v cc ? function table input(oe) input(a) output(y) h l l h h h l x z note: h: high voltage level; l: low voltage le vel; x=don?t care; z=hi gh-impedance off-state. ? logic diagram (positive logic) logic symbol iec logic symbol
u74lvc1g126 cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-398.d ? 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 enable mode -0.5 ~ v cc + 0.5 v disable mode -0.5 ~ +6.5 v output voltage power-down mode v out -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 sot-23-5 300 sot-25 360 power dissipation (t a =-40c ~ +125c) sot-353 p d 250 mw 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 v cc =1.65v ~ 5.5v; enable mode 0 v cc v v cc =1.65v ~ 5.5v; disable mode 0 5.5 v output voltage v out v cc =0v; power-down mode 0 5.5 v v cc =1.65v ~ 2.7v 20 ns/v input transition rise or fall rate t r / t f v cc =2.7v ~ 5.5v 10 ns/v ? electrical characteristics (t a =25c , unless otherwise specified) parameter symbol test conditions min typ max unit v cc =1.65v ~ 1.95v 0.65v cc v v cc =2.3v ~ 2.7v 1.7 v v cc =2.7v ~ 3.6v 2 v high-level input voltage v ih v cc =4.5v ~ 5.5v 0.7v cc v v cc =1.65v ~ 1.95v 0.35v cc v v cc =2.3v ~ 2.7v 0.7 v v cc =2.7v ~ 3.6v 0.8 v low-level input voltage v il v cc =4.5v ~ 5.5v 0.3v cc v v cc =1.65 ~ 5.5v, i oh =-100 a v cc -0.1 v v cc =1.65v, i oh =-4ma 1.2 v v cc =2.3v, i oh =-8ma 1.9 v v cc =2.7v, i oh =-12ma 2.2 v v cc =3.0v, i oh =-24ma 2.3 v high-level output voltage v oh v cc =4.5v, i oh =-32ma 3.8 v v cc =1.65 ~ 5.5v, i ol =100 a 0.1 v v cc =1.65v, i ol =4ma 0.45 v v cc =2.3v, i ol =8ma 0.3 v v cc =2.7v, i ol =12ma 0.4 v v cc =3.0v, i ol =24ma 0.55 v low-level output voltage v ol v cc =4.5v, i ol =32ma 0.55 v
u74lvc1g126 cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-398.d ? electrical characteristics(cont.) parameter symbol test conditions min typ max unit input leakage current i i(leak) v cc =5.5v, v in =5.5v or gnd 0.1 5 a power off leakage current i off v cc =0v, v in or v out =5.5v 0.1 10 a 3-state output off-state current i oz v cc =5.5v v in =v ih or v il , v out =v cc or gnd 0.1 10 a quiescent supply current i cc v cc =5.5v, v in =v cc or gnd, i out =0 0.1 10 a additional quiescent supply current per input pin ? i cc v cc =2.3 ~ 5.5v, v in =v cc -0.6v, i out =0 5 500 a ? switching characteristics (t a =25c , unless otherwise specified) parameter symbol test conditions min typ max unit v cc =1.80.15v, r l =1k ? 1.0 3.0 8.0 ns c l =30pf v cc =2.50.2v, r l =500 ? 0.5 2.1 5.5 ns v cc =2.7v 0.5 2.3 5.5 ns v cc =3.30.3v 0.5 2.0 4.5 ns propagation delay from input a to output y t plh / t phl c l =50pf, r l =500 ? v cc =50.5v 0.5 1.7 4.0 ns v cc =1.80.15v, r l =1k ? 1.0 3.2 9.4 ns c l =30pf v cc =2.50.2v, r l =500 ? 0.5 2.2 6.6 ns v cc =2.7v 0.5 2.4 6.6 ns v cc =3.30.3v 0.5 2.1 5.3 ns 3-state output enable time from input oe to output y t pzh / t pzl c l =50pf, r l =500 ? v cc =50.5v 0.5 1.6 5.0 ns v cc =1.80.15v, r l =1k ? 1.0 4.3 9.2 ns c l =30pf v cc =2.50.2v, r l =500 ? 0.5 2.7 5.5 ns v cc =2.7v 0.5 3.4 5.5 ns v cc =3.30.3v 0.5 3.0 5.5 ns 3-state output disable time from input oe to output y t plz / t plh c l =50pf, r l =500 ? v cc =50.5v 0.5 2.2 4.2 ns
u74lvc1g126 cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-398.d ? 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 inputs v cc v in t r , t f v m v load v ? c l r l 1.8v0.15v v cc 2ns v cc /2 2v cc 0.15v 30pf 1k ? 2.5v0.2v v cc 2ns v cc /2 2v 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 2v cc 0.3v 50pf 500 ? notes: 1. c l includes probe and jig capacitance. 2. all input pulses are supplied by generat ors 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.
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