unisonic technologies co., ltd UT3232 preliminary cmos ic www.unisonic.com.tw 1 of 7 copyright ? 2014 unisonic technologies co., ltd qw-r502-a68.b 3.0v to 5.5v low power multichannel rs-232 line transceivers using for 0.1 f external capacitors ? description the utc UT3232 have two receivers and two drivers, and a dual charge-pump circuit. the devic e meets the requirements of tia/eia-232-f and provides the electrical interface between an asynchronous communication controller and the serial-port connector. the charge pump and four small external capacitors allow operation from a single 3.0v to 5.5v supply. the device operates at data signaling rates up to 250kbit/s and a maximum of 35v/ s driver output slew rate. sop-16 tssop-16 ? features * exceeds 8kv esd protection(hbm) for rs-232 i/o pins * meets the requirements of tia/eia-232-f and itu v.28 standards * operates with 3.0v to 5.5v v cc supply * operates up to 250kbit/s data rate * two drivers and two receivers * external capacitors 40.1 f * accepts 5.0v logic input with 3.3v supply ? ordering information ordering number package packing lead free halogen free UT3232l-p16-t UT3232g-p16-t sop-16 tube UT3232l-p16-r UT3232g-p16-r sop-16 tape reel
UT3232 preliminary cmos ic unisonic technologies co., ltd 2 of 7 www.unisonic.com.tw qw-r502-a68.b ? marking information package marking sop-16 tssop-16 ? pin configuration ? pin description pin no. pin name description 1 c1+ positive terminal of voltage-doubler charge-pump capacitor 2 v+ +5.5v generated by the charge pump 3 c1- negative terminal of volta ge-doubler charge-pump capacitor 4 c2+ positive terminal of inverting charge-pump capacitor 5 c2- negative terminal of inverting charge-pump capacitor 6 v- -5.5v generated by the charge pump 7 dout2 rs-232 driver outputs 8 rin2 rs-232 receiver inputs 9 rout2 ttl/cmos receiver outputs 10 din2 ttl/cmos driver inputs 11 din1 ttl/cmos driver inputs 12 rout1 ttl/cmos receiver outputs 13 rin1 rs-232 receiver inputs 14 dout1 rs-232 driver outputs 15 gnd ground 16 v cc +3.0v to +5.5v supply voltage
UT3232 preliminary cmos ic unisonic technologies co., ltd 3 of 7 www.unisonic.com.tw qw-r502-a68.b ? block diagram din2 dout1 dout2 din1 rin1 rin2 rout2 11 10 12 9 8 13 7 14 rout1 5k ? 5k ? utc UT3232
UT3232 preliminary cmos ic unisonic technologies co., ltd 4 of 7 www.unisonic.com.tw qw-r502-a68.b ? absolute maximum rating [over operating free-air temperature range (unless otherwise noted)] parameter symbol ratings unit supply voltage range v cc -0.3 ~ +6.0 v positive output supply voltage range (note 2) v+ -0.3 ~ +7.0 v negative output supply voltage range (note 2) v- +0.3 ~ -7.0 v supply voltage difference (note 2) v+ - v- +13 v input voltage drivers v in -0.3 ~ +6.0 v receivers -25 ~ +25 v output voltage drivers v out -13.2 ~ +13.2 v receivers -0.3 ~ v cc +0.3 v operating virtual j unction temperature t j +150 c storage temperature t stg -65 ~ + 150 c notes: 1. absolute maximum ratings are those values bey ond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. 2. all voltages are with respect to network gnd. ? thermal data parameter symbol rating unit junction to ambient sop-16 ja 105 c/w tssop-16 118 ? recommended operating conditions (see note & table 1) parameter symbol test conditions min typ max unit supply voltage v cc v cc =3.3v 3.0 3.3 3.6 v v cc =5.0v 4.5 5.0 5.5 v driver and control high-level input voltage v ih din v cc =3.3v 2.0 v v cc =5.5v 2.4 driver and control low-level input voltage v il din 0.8 v driver and control input voltage v in din 5.5 v receiver input voltage v rin -25 25 v operating free-air temperature t a 0 70 c notes: test conditions are c1~c4=0.1 f at v cc =3.3v0.3v; c1=0.047 f, c2~c4=0.33 f at v cc =5.0v0.5v.
UT3232 preliminary cmos ic unisonic technologies co., ltd 5 of 7 www.unisonic.com.tw qw-r502-a68.b ? electrical characteristics [(over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see note 3 & table 1)] parameter symbol test conditions min typ (note 1) max unit input leakage current i in din 0.01 1 a supply current i cc no load 0.3 1.0 ma driver section high-level output voltage v oh dout at r l =3k ? to gnd, din=gnd +5.0 +5.4 v low-level output voltage v ol dout at r l =3k ? to gnd, din=v cc -5.0 -5.4 v high-level input current i oh v i =v cc 0.01 1 a low-level input current i ol v i at gnd 0.01 1 a short-circuit output current (note 2) i os v cc =3.6v, v out =0v 35 60 ma v cc =5.5v, v out =0v 35 60 ma output resistance r o v cc , v+ and v- =0v, v out =2.0v 300 10m ? output leakage current i off v cc =3.0v~5.5v, v out =12v 25 a receiver section high-level output voltage v oh i oh =-1.0ma v cc -0.6v v cc - 0.1v v low-level output voltage v ol i ol =1.6ma 0.4 v positive-going input threshold voltage v it+ v cc =3.3v 1.5 2.4 v v cc =5.0v 1.8 2.4 v negative-going input threshold voltage v it- v cc =3.3v 0.6 1.2 v v cc =5.0v 0.8 1.5 v input hysteresis v hys v it+ ~v it- 0.3 v output leakage current i off 0.05 10 a input resistance r i v i =3.0v~25v 3 5 7 k ? notes: 1. all typical values are at v cc =3.3v or v cc =5.0v, and t a =25c. 2. short-circuit durations should be controlled to prevent exceeding the device absolute power-dissipation ratings, and not more than one output should be shorted at a time. 3. test conditions are c1~c4=0.1 f at v cc =3.3v0.3v; c1=0.047 f, c2~c4=0.33 f at v cc =5.0v0.5v. 4. pulse skew is defined as |t plh ? t phl | of each channel of the same device. ? switching characteristics [over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see note 3 and table 1)] parameter symbol test conditions min typ (note 1) max unit driver section maximum data rate c l =1000pf, r l =3k ? , one driver switching 150 250 kbit/s pulse skew (note 4) t sk (p) c l =220pf~2500pf, r l =3k ? ~7k ? 300 ns slew rate, transition region sr(tr) r l =3k ? ~7k ? , v cc =3.3v c l =220pf~1000pf 5 35 v/ s c l =220pf~2500pf 3 35 receiver section propagation delay time, low- to high-level output t plh c l =150pf 300 ns propagation delay time, high- to low-level output t phl c l =150pf 300 ns output enable time t en c l =150pf, r l =3k ? 200 ns output disable time t dis c l =150pf, r l =3k ? 200 ns pulse skew (note 4) t sk ( p ) |t plh ? t phl | 300 ns notes: 1. all typical values are at v cc =3.3v or v cc =5.0v, and t a =25c. 2. short-circuit durations should be controlled to prevent exceeding the device absolute power-dissipation ratings, and not more than one output should be shorted at a time. 3. test conditions are c1~c4=0.1 f at v cc =3.3v0.3v; c1=0.047 f, c2~c4=0.33 f at v cc =5.0v0.5v. 4. pulse skew is defined as |t plh ? t phl | of each channel of the same device.
UT3232 preliminary cmos ic unisonic technologies co., ltd 6 of 7 www.unisonic.com.tw qw-r502-a68.b ? typical application circuit table1. typical operating circuit and capacitor values v cc (v) c1 (f) c2, c3, c4 (f) c bypass (f) 3.0~3.6 0.22 0.22 0.22 3.15~3.6 0.1 0.1 0.1 4.5~5.5 0.047 0.33 0.047 3.0~5.5 0.22 1.0 0.22
UT3232 preliminary cmos ic unisonic technologies co., ltd 7 of 7 www.unisonic.com.tw qw-r502-a68.b 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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