unisonic technologies co., ltd u74ahc1g66 cmos ic www.unisonic.com.tw 1 of 8 copyright ? 2009 unisonic technologies co., ltd qw-r502-098,c bilateral switch ? description the utc u74ahc1g66 is an analog switch which transmits signals from pin(y or z) to pin (z or y) with an active high enable input pin (e). when pin e is lo w, the switch is turned off. ? features * operation voltage range: 2~5.5v * low power dissipation * very low on-resistance: 26 ? (typ.) at v cc =3.0v 16 ? (typ.) at v cc =4.5v 14 ? (typ.) at v cc =5.5v ? ordering information ordering number lead free halogen free package packing u74ahc1g66l-af5-r U74AHC1G66G-AF5-R sot-25 tape reel u74ahc1g66l-al5-r u74ahc1g66g-al5-r sot-353 tape reel ? marking 4 5 3 2 1 a66 l: lead free g: halogen free sot-25 sot-353
u74ahc1g66 cmos ic unisonic technologies co., ltd 2 of 8 www.unisonic.com.tw qw-r502-098,c ? pin configuration ? pin description pin no. symbol description 1 y independent input/output 2 z independent output/input 3 gnd ground 4 e enable input 5 v cc supply voltage ? function table (each gate) input e switch h on l off ? logic diagram (positive logic)
u74ahc1g66 cmos ic unisonic technologies co., ltd 3 of 8 www.unisonic.com.tw qw-r502-098,c ? absolute maximum ratings (unless otherwise specified)(note 2) parameter symbol ratings unit supply voltage v cc -0.5~7 v enable input voltage v e -0.5~7 v enable input clamp current i ek -20 ma switch diode current i sk 20 ma on-state switch current(-0.5v < v os < v cc +0.5v) i s 25 ma v cc or gnd current i cc 75 ma power dissipation p d 250 mw storage temperature t stg -65 ~ +150 c notes: 1. 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. 2. the input and output voltage ratings may be exceeded if the i nput and output current ratings are observed. 3. to avoid drawing v cc current out of pin z, when switch current flows into pin y, the voltage drop across the bidirectional switch must not exceed 0.4v. if the switch current flows into pin z, no v cc current will flow out of pin y. in this case there is no limit for the voltage drop across the switch, but the voltage at pins y and z may not exceed v cc or gnd. ? recommended operating conditions parameter symbol conditions min typ max unit supply voltage v cc 2 5.0 5.5 v enable input voltage v e 0 5.5 v switch voltage v s 0 v cc v v cc =3.3+0.3v 100 ns/v input transition rise or fall rate v t v cc =5.0+0.5v 20 ns/v operating temperature t a -40 25 125 c ? static characteristics parameter symbol test conditions min typ max unit v cc =2.0v 1.5 v v cc =3.0v 2.1 v high-level v ih v cc =5.5v 3.85 v v cc =2.0v 0.5 v v cc =3.0v 0.9 v input voltage low-level v il v cc =5.5v 1.65 v enable input leakage current i e(leak) v cc =5.5v, v e =v cc or gnd 0.1 a off v cc =5.5v, |v s |=v cc -gnd 0.1 a state switch current on i s v cc =5.5v 0.1 a v cc =2.0v, v is = v cc to gnd, i s =1ma 148 ? v cc =3.0v~3.6v, v i s = v cc to gnd, i s =10ma 28 50 ? on-resistance (peak) (note) r on(peak) v cc =4.5v~5.5v, v i s = v cc to gnd, i s =10ma 15 30 ? v cc =2.0v, v is = v cc, i s =1ma 28 ? v cc =2.0v, v is = gnd, i s =1ma 30 ? v cc =3.0v~3.6v, v is = v cc , i s =10ma 18 50 ? v cc =3.0v~3.6v, v is = gnd, i s =10ma 20 50 ? v cc =4.5v~5.5v, v is = v cc , i s =10ma 13 22 ? on-resistance (rail) r on(rail) v cc =4.5v~5.5v, v is = gnd, i s =10ma 15 22 ? quiescent supply current i q v cc =5.5v,v e =v cc or gnd,v is = gnd or v cc , v os =v cc or gnd 1.0 a enable input capacitance c e v e =v cc or gnd 2 10 pf maximum switch capacitance c s independent i/o 4 10 pf note: with supply voltages at or near 2v, the analog switch on-state resistance becomes very nonlinear. only digital signals should be transmitted at these low supply voltages.
u74ahc1g66 cmos ic unisonic technologies co., ltd 4 of 8 www.unisonic.com.tw qw-r502-098,c ? dynamic characteristics (ta=25c) input: t r , t f 3ns; prr 1mhz, all typical values are measured at v cc =2v; v cc =3.3v or v cc =5v. parameter symbol test conditions min typ max unit propagation delay from y/z to z/y t phl /t plh v cc =2.0v, c l =50pf 2.2 5 ns v cc =2.0v, c l =15pf 7 25 ns turn-on time from e to z/y t pzh /t pzl v cc =2.0v, c l =50pf 11 35 ns v cc =2.0v, c l =15pf 9 25 ns turn-off time from e to z/y t phz /t plz v cc =2.0v, c l =50pf 13 35 ns propagation delay from y/z to z/y t phl /t plh v cc =3.0v~3.6v, c l =50pf 1 2 ns v cc =3.0v~3.6v, c l =15pf 4 11 ns turn-on time from e to z/y t pzh /t pzl v cc =3.0v~3.6v, c l =50pf 5.8 15 ns v cc =3.0v~3.6v, c l =15pf 6 11 ns turn-off time from e to z/y t phz /t plz v cc =3.0v~3.6v, c l =50pf 8.4 15 ns propagation delay from y/z to z/y t phl /t plh v cc =4.5v~5.5v, c l =50pf 0.6 1 ns v cc =4.5v~5.5v, c l =15pf 3 8 ns turn-on from e to z/y t pzh /t pzl v cc =4.5v~5.5v, c l =50pf 4.4 11 ns v cc =4.5v~5.5v, c l =15pf 5 8 ns turn-off time from e to z/y t phz /t plz v cc =4.5v~5.5v, c l =50pf 6.1 11 ns recommended conditions and typical values. gnd=0; t r =t f =3ns parameter symbol test conditions min typ max unit v cc =3.0v~3.6v, v is(p-p) =2.5v, r l =10k ? , c l =50pf 0.025 % sine-wave distortion at f=1khz v cc =4.5v~5.5v, v is(p-p) =4.0v, r l =10k ? , c l =50pf 0.015 % v cc =3.0v~3.6v, v is(p-p) =2.5v, r l =10k ? , c l =50pf 0.025 % sine-wave distortion at f=10khz v cc =4.5v~5.5v, v is(p-p) =4.0v, r l =10k ? , c l =50pf 0.015 % v cc =3.0v~3.6v, r l =600 ? , c l =50pf, f=1mhz -50 db switch off signal feed-through (note 1) v cc =4.5v~5.5v, r l =600 ? , c l =50pf, f=1mhz -50 db v cc =3.0v~3.6v, r l =50 ? , c l =10pf 230 mhz minimum frequency response (-3db) (note 2) f max v cc =4.5v~5.5v, r l =50 ? , c l =10pf 280 mhz operating characteristics power dissipation capacitance cpd c l =50pf, f=10mhz, v cc =5 13 pf notes: 1. adjust input voltage v is is 0dbm level (0dbm=1mw into 600 ? ) 2. adjust input voltage v is is 0dbm level at v os for 1mhz (0dbm=1mw into 50 ? )
u74ahc1g66 cmos ic unisonic technologies co., ltd 5 of 8 www.unisonic.com.tw qw-r502-098,c ? test circuit and waveforms y/z (vcc or gnd) channel off a z/y v is vos (gnd or vcc) fig-1 off-state switch le akage current test circuit y/z (vcc or gnd) channel on a z/y open v is fig-2 on-state leakage current test circuit y/z (vcc or gnd) channel on z/y v is vos v is vos-v is r on = is fig-3 on-state resistance test circuit
u74ahc1g66 cmos ic unisonic technologies co., ltd 6 of 8 www.unisonic.com.tw qw-r502-098,c ? test circuit and waveforms(cont.) fig-4 the input (y/z) to output (z/y) propagation delays. fig-5 the switch-on and switch-off times.
u74ahc1g66 cmos ic unisonic technologies co., ltd 7 of 8 www.unisonic.com.tw qw-r502-098,c
u74ahc1g66 cmos ic unisonic technologies co., ltd 8 of 8 www.unisonic.com.tw qw-r502-098,c ? test circuit and waveforms(cont.) fig-6 sine-wave distortion fig-7 feed-through attenuation (switch off) fig-8 minimum frequency response 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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