unisonic technologies co., ltd u74cbt1g384 cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2012 unisonic technologies co., ltd qw-r502-807.a single fet bus switch ? description the u74cbt1g384 features a single high-speed line switch. the switch is disabled when the output-enable ( oe ) input is high. ? features * 5- ? switch connection between two ports * inputs are ttl-voltage compatible ? ordering information ordering number package packing lead free plating halogen free U74CBT1G384L-AL5-R u74cbt1g384g-al5-r sot-353 tape reel ? marking
u74cbt1g384 cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-807.a ? pin configuration 5 4 1 3 oe bgnd v cc a 2 ? function table (each gate) input oe output l a port = b port h disconnect ? logic diagram (positive logic)
u74cbt1g384 cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-807.a ? absolute maximum rating (t a =25c, unless otherwise specified)(note 1) parameter symbol ratings unit supply voltage v cc -0.5~7 v input voltage v in -0.5~7 v continuous channel current i ch 128 ma input clamp current(v i <0) i ik -50 ma storage temperature t stg -65 ~ +150 c note 1. the input and output voltage ratings may be exce eded if the input and output cu rrent ratings are observed. 2. the package thermal impedance is ca lculated in accordance with jesd 51. ? recommended operating comditions parameter symbol min typ max unit supply voltage v cc 4 5.5 v high-control input voltage v ih 2 v lo w -control input voltage v il 0.8 v operating temperature t a -40 +85 c ? static characteristics parameter symbol test conditions min typ max unit digital input diode voltage v ik v cc =4.5v, i i =-18ma -1.2 v input leakage current i in v cc =5.5v, v i =v cc or gnd 1 a v cc or gnd current i cc v cc =5.5v, v i =5.5v or gnd, i o =0 1 a control input c in v o =3v or 0 3 pf i/o capacitance (off) c io v o =3v or 0, oe = v cc 4 pf resistor between two ports r on v cc =4v, typ at v cc =4v, v i =2.4v, i i =15ma 14 20 ? v cc =4.5v, v i =0v i i =64ma 5 7 ? i i =30ma 5 7 ? v cc =4.5v, v i =2.4v, i i =15ma 10 15 ? ? dynamic characteristics (input: t r , t f 2.5ns; prr 10mhz; c l =50pf) see fig. 1 and fig. 2 for test circuit and waveforms. parameter symbol test conditions min typ max unit from input (a or b) to output (b or a) (note) t pd v cc =4v, c l =50pf, r l =500 ? 0.35 ns v cc = 5v0.5v, c l =50pf, r l =500 ? 0.25 ns from input oe to output (a or b) t en v cc =4v, c l =50pf, r l =500 ? 5.5 ns v cc = 5v0.5v, c l =50pf, r l =500 ? 1.6 4.9 ns from input oe to output (a or b) t dis v cc =4v, c l =50pf, r l =500 ? 4.5 ns v cc = 5v0.5v, c l =50pf, r l =500 ? 1.0 4.2 ns note: 1. t p d : t plh and t phl . 2. t en : t pzl and t pzh . 3. t dis : t plz and t phz .
u74cbt1g384 cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-807.a ? test circuit and waveforms (c l =50pf, r l =500 ? , v load =7v, v m =1.5v) note: c l includes probe and jig capacitance. fig. 1 load circuitry for switching times. fig. 2 propagation delay from input(a) to output(b) and output transition time.
u74cbt1g384 cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-807.a 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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