unisonic technologies co., ltd u74aup1t157 cmos ic www.unisonic.com.tw 1 of 6 copyright ? 2016 unisonic technologies co., ltd qw-r126-058.a single 2-input schmitt-trigger buffer multiplexer (noninverted) ? description the u74aup1t157 is a single 2-input multiplexer. the data select input(c) determines the two data input a or b which of them is connect to the output with the true and complementary data. this device has power-down protective circuit, preventing device destruction when it is powered down. the wide v cc range of 2.3v to 3.6v allows the possibility of switching output level to connect to external controllers or processors. all input levels that accept 1.8v lvcmos signals, while operating from either a single 3.3v or 2.5v v cc supply. ? features * single-supply voltage translator * i off supports partial-power-down mode * low power dissipation * output level up to supply v cc cmos level 1.8v to 3.3v (at v cc = 3.3v) 2.5v to 3.3v (at v cc = 3.3v) 1.8v to 2.5v (at v cc = 2.5v) 3.3v to 2.5v (at v cc = 2.5v) ? ordering information ordering number package packing U74AUP1T157G-AL6-R sot-363 tape reel ? marking
u74aup1t157 cmos ic unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw qw-r126-058.a ? pin configuration ? function table input output a b c y x l l l x h l h l x h l h x h h notes: 1. h: high voltage le vel; l: low voltage level. 2. supply v cc =2.3v to 2.7v ? logic diagram (positive logic) logic symbol ? typical design examples
u74aup1t157 cmos ic unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw qw-r126-058.a ? absolute maximum rating parameter symbol conditions ratings unit supply voltage v cc -0.5 ~ +4.6 v input voltage v in -0.5 ~ +4.6 v output in the power-off state -0.5 ~ +4.6 v output voltage v out output in the high or low state -0.5 ~ v cc +0.5 v continuous v cc or gnd current i cc 50 ma continuous output current i out v out =0v ~ v cc 20 ma input clamp current i ik v in <0v -50 ma output clamp current i ok v out >v cc or v out <0v -50 ma 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. ? recommended operating conditions parameter symbol test conditions min typ max unit supply voltage v cc operating 2.3 3.6 v input voltage v in 0 3.6 v output voltage v out high or low state 0 v cc v operating temperature t a -40 +85 c ? electrical characteristics (t a =25c , unless otherwise specified) parameter symbol test conditions min typ max unit v cc =2.5v0.2v 0.6 1.1 v positive-going input threshold voltage v t+ v cc =3.0v0.3v 0.75 1.16 v v cc =2.5v0.2v 0.35 0.6 v negative-going input threshold voltage v t- v cc =3.0v0.3v 0.5 0.85 v v cc =2.5v0.2v 0.23 0.6 v hysteresis voltage (v t+ -v t- ) v t v cc =3.0v0.3v 0.25 0.56 v v cc =2.3 ~ 3.6v, i oh =-20 a v cc -0.1 v i oh =-2.3ma 2.05 v v cc =2.3v i oh =-3.1ma 1.9 v i oh =-2.7ma 2.72 v high-level output voltage v oh v cc =3.0v i oh =-4ma 2.6 v v cc =2.3 ~ 3.6v, i oh =20 a 0.1 v i ol =2.3ma 0.31 v v cc =2.3v i ol =3.1ma 0.44 v i ol =2.7ma 0.31 v low-level output voltage v ol v cc =3.0v i ol =4ma 0.44 v input leakage current i i(leak) v cc =0 ~ 3.6v, v in =3.6v or gnd 0.1 a power off leakage current i off v cc =0v, v in or v out =3.6v 0.1 a a dditional power off leakage current ? i off v cc =0 ~ 0.2v, v in or v out =3.6v 0.2 a quiescent supply current i cc v cc =2.3 ~ 3.6v, v in =3.6v or gnd, i out =0a 0.5 a v cc =2.3 ~ 2.7v, one input at 0.3v or 1.1v, other inputs at 0 or v cc , i out =0a 4 a a dditional quiescent supply current per input pin ? i cc v cc =3 ~ 3.6v, one input at 0.45v or 1.2v, other inputs at 0 or v cc , i out =0a 12 a input capacitance c i v cc =3.3v, v in =v cc or gnd 1.5 pf output capacitance c o v cc =3.3v, v out =v cc or gnd 3.0 pf
u74aup1t157 cmos ic unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw qw-r126-058.a ? switching characteristics (t a =25c , unless otherwise specified) parameter symbol test conditions min typ max unit v cc =2.5v0.2v, v in =1.8v0.15v 1.8 2.3 2.9 ns v cc =2.5v0.2v v in =2.5v0.2v 1.8 2.3 3.1 ns v cc =2.5v0.2v v in =3.3v0.3v 2.0 2.7 3.5 ns v cc =3.3v0.3v v in =1.8v0.15v 1.6 2.0 2.5 ns v cc =3.3v0.2v v in =2.5v0.2v 1.6 1.9 2.4 ns c l =5pf r l =1m ? v cc =3.3v0.2v v in =3.3v0.3v 1.6 2.1 2.7 ns v cc =2.5v0.2v, v in =1.8v0.15v 2.3 2.8 3.4 ns v cc =2.5v0.2v v in =2.5v0.2v 2.2 2.8 3.5 ns v cc =2.5v0.2v v in =3.3v0.3v 2.4 3.1 3.9 ns v cc =3.3v0.3v v in =1.8v0.15v 2.0 2.4 2.9 ns v cc =3.3v0.2v v in =2.5v0.2v 2.0 2.3 2.7 ns c l =10pf r l =1m ? v cc =3.3v0.2v v in =3.3v0.3v 2.0 2.4 3.0 ns v cc =2.5v0.2v, v in =1.8v0.15v 2.6 3.1 3.8 ns v cc =2.5v0.2v v in =2.5v0.2v 2.6 3.2 5.2 ns v cc =2.5v0.2v v in =3.3v0.3v 2.8 3.5 4.3 ns v cc =3.3v0.3v v in =1.8v0.15v 2.3 2.8 3.3 ns v cc =3.3v0.2v v in =2.5v0.2v 2.3 2.7 3.1 ns c l =15pf r l =1m ? v cc =3.3v0.2v v in =3.3v0.3v 2.3 2.7 3.3 ns v cc =2.5v0.2v, v in =1.8v0.15v 3.8 4.4 5.1 ns v cc =2.5v0.2v v in =2.5v0.2v 3.7 4.4 5.2 ns v cc =2.5v0.2v v in =3.3v0.3v 4.0 4.7 5.5 ns v cc =3.3v0.3v v in =1.8v0.15v 3.4 3.9 4.4 ns v cc =3.3v0.2v v in =2.5v0.2v 3.4 3.8 4.2 ns propagation delay from input (a, b or c) to output(y) t pd c l =30pf r l =1m ? v cc =3.3v0.2v v in =3.3v0.3v 3.4 2.8 4.4 ns
u74aup1t157 cmos ic unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw qw-r126-058.a ? operating characteristics (t a =25c , unless otherwise specified) parameter symbol test conditions min typ max unit v cc =2.50.2v, f=10mh z 4.0 pf power dissipation capacitance c pd v cc =3.30.3v, f=10mh z 5.0 pf
u74aup1t157 cmos ic unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw qw-r126-058.a ? test circuit and waveforms note: c l includes probe and jig capacitance. v cc v m c l r l v ? 0.8v v cc /2 5,10,15,30pf 1m ? v cc 1.2v0.1v v cc /2 5,10,15,30pf 1m ? v cc 1.5v0.1v v cc /2 5,10,15,30pf 1m ? v cc 1.8v0.15v v cc /2 5,10,15,30pf 1m ? v cc 2.5v0.2v v cc /2 5,10,15,30pf 1m ? v cc 3.3v0.3v v cc /2 5,10,15,30pf 1m ? v cc notes: 1. c l includes probe and jig capacitance. 2. all input pulses are supplied by generator s having the following characteristics: prr 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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