unisonic technologies co., ltd UT3232 preliminary c m o s i c 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 u s ing for 0.1 f external capacitors ? descripti on t he u t c ut 3 232 h a ve t w o r e ceivers a nd t w o drivers, an d a dua l charg e -pum p circuit. t he devic e meets the req u ire m ents o f t i a/eia-232 -f an d p r o v i des th e el ectri c a l i n terface be t w een a n a s y n ch ro n o u s c o mm u n i ca t i o n contro ller and the seri al-p ort conn ector . t he charge p u m p and fo ur s m all e x ter nal c apacit ors all o w operati o n f r o m a s i n g l e 3. 0v to 5. 5v su p p l y . t h e de vi ce o p e r a te s at dat a s i g n a l i n g ra te s u p to 2 5 0kb i t / s a n d a ma x i mu m of 35v/ s dr i v er output sle w rate. sop-16 tssop-16 ? features * ex ceeds 8k v esd protection(hbm) for rs-232 i/o pins * meets the re quirem ents of t i a/eia-232-f and it u v.28 standar ds * operates w i th 3.0v to 5.5v v cc supp l y * operates up t o 250kbit/s data rate * t w o dr ivers and t w o r e cei vers * exter nal c a p a citors 4 0.1 f * accepts 5.0v logic inp u t w i th 3.3v supp l y ? or de r ing i n form at io n ordering n u m ber package packing lea d f r ee halogen free ut 3232l-p1 6- t UT3232g-p16-t sop-16 tube ut 3232l-p1 6- r ut 3232g-p16-r sop-16 tape reel http://
UT3232 preliminary cm os ic unisonic technologi es co., ltd 2 of 7 w w w . uniso nic.co m.t w q w - r 5 0 2 - a 6 8 . b ? mar k ing i n formati on package marking sop-16 tssop-16 ? pin configuration ? p i n de sc ri pt i o n pin no. pin name descript ion 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 dout 2 rs-232 driver outputs 8 rin2 rs-232 receiver inputs 9 rout 2 ttl/cmos receiver outputs 10 din2 ttl/cmos driver inputs 11 din1 ttl/cmos driver inputs 12 rout 1 ttl/cmos receiver outputs 13 rin1 rs-232 receiver inputs 14 dout 1 rs-232 driver outputs 15 gnd ground 16 v cc +3.0v to +5.5v supply voltage
UT3232 preliminary cm os ic unisonic technologi es co., ltd 3 of 7 w w w . uniso nic.co m.t w q w - r 5 0 2 - a 6 8 . b ? block di agra m din2 do ut 1 dout2 din1 ri n1 rin2 rout2 11 10 12 9 8 13 7 14 rout1 5k ? 5k ? utc UT3232
UT3232 preliminary cm os ic unisonic technologi es co., ltd 4 of 7 w w w . uniso nic.co m.t w q w - r 5 0 2 - a 6 8 . b ? absolute maxi mu m ra ting [over oper ating fr ee-air temp erat ure ran ge (un l e ss other w i s e n o ted)] paramet er symbol rat i ngs unit supp l y v o ltag e rang e v cc -0.3 ~ +6.0 v positive output suppl y vo ltag e ran ge (note 2) v+ -0.3 ~ + 7 .0 v negativ e outp ut suppl y vo lta ge ra nge (n ote 2) v- + 0 .3 ~ -7.0 v supp l y v o ltag e difference (n o t e 2) v+ - v- +13 v input voltage drivers v in -0.3 ~ +6.0 v receiv ers -25 ~ + 25 v output voltage drivers v out -13.2 ~ + 13.2 v receiv ers -0.3 ~ v cc +0.3 v operatin g virtu a l j uncti on t e mperatur e t j + 150 c storage t e mperature t st g -65 ~ + 150 c notes: 1. absol u te ma ximum r a tings ar e thos e valu es be y o n d w h ich th e de vice coul d be p e rmane ntl y da mage d. absol u te ma xi mum ratings ar e stress ratings onl y an d functi onal devic e op er atio n is not i m plie d. 2. all voltag es are w i th res pec t to net w o rk g nd. ? th er mal dat a paramet er symbol rat i ng unit junction to ambient sop-16 ja 105 c/w tssop-16 118 ? recommended o perating condi t ion s (see note & t able 1) paramet er symbol t es t conditions min t y p max unit supp l y v o ltag e 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 an d co n t rol high- leve l input voltage v ih din v cc = 3 .3v 2.0 v v cc = 5 .5v 2.4 driver an d co n t rol lo w - l e vel i nput vo l ta ge v il din 0.8 v driver an d co n t rol input volta g e v in din 5.5 v receiv er input voltag e v rin -25 25 v operatin g f r ee -air t e mperature 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 cm os ic unisonic technologi es co., ltd 5 of 7 w w w . uniso nic.co m.t w q w - r 5 0 2 - a 6 8 . b ? e l ectrical characte rist ics [(over recommende d ran ges of suppl y voltage and oper ating free-air temp erature (un l ess o t her w i se noted ) (see note 3 & t able 1)] parameter symbol test conditions min ty p (note 1) max unit input leak ag e current i in din 0.01 1 a supp l y curre nt i cc no loa d 0.3 1.0 ma driver section high- lev el output voltag e v oh dout at r l =3 k ? to gnd, di n=gnd + 5.0 + 5.4 v lo w - l e ve l output voltag e v ol dout at r l =3 k ? to gnd, din=v cc -5.0 -5.4 v high-level input current i oh v i =v cc 0.01 1 a lo w - l e ve l inpu t current i ol v i at gnd 0.01 1 a short-circu it output curre nt (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- = 0 v, v ou t = 2.0v 300 10m ? output leak ag e current i off v cc =3.0v~5.5v, v out = 12v 25 a receiver section high- lev el output voltag e v oh i oh = - 1.0ma v cc -0.6v v cc - 0.1 v v lo w - l e ve l output voltag e v ol i ol = 1 .6ma 0.4 v positive-goi ng input t h reshol d voltage v it + v cc = 3 .3v 1.5 2.4 v v cc =5.0v 1.8 2.4 v negativ e-goi n g input t h reshold volt age v it - v cc = 3 .3v 0.6 1.2 v v cc = 5 .0v 0.8 1.5 v input h y steresi s v hys v it + ~v it - 0.3 v output leak ag e current i off 0.05 10 a input resistance r i v i =3.0v~25v 3 5 7 k ? notes: 1. all t y pical va lu es ar e at v cc =3.3v or v cc = 5 .0v, and t a = 25c. 2. short-circuit durati ons sho u l d be contro lle d to prevent e x c eedi ng the devi c e abso l ute p o w e r-diss i pati o n ratings, an d no t more than on e output sh oul d be shorte d at a time. 3. t e st conditio n s are c1~ c 4= 0.1 f a t v cc = 3 .3v0.3v; c1= 0 .047 f , c2~ c 4= 0.33 f a t v cc =5.0v0.5v. 4. pulse ske w i s define d as | t pl h ? t ph l | of eac h chan nel of th e same dev ice. ? swi t ch in g ch ara cteri s tic s [over reco mmende d ra n ges of s upp l y voltag e a nd oper ating free-air temp erature (un l ess o t her w i se noted ) (see note 3 a nd t able 1)] parameter symbol test conditions min ty p (note 1) max unit driver section maximum data rate c l = 1000pf , r l =3 k ? , one driver s w itc h in g 150 250 kbit/s pulse skew (note 4) t sk (p) c l = 220pf ~ 250 0pf , r l =3 k ? ~7k ? 300 ns slew rate, transition region sr(tr) r l =3 k ? ~7 k ? , v cc =3 .3 v c l = 220pf ~ 100 0pf 5 35 v/ s c l =220pf~2500pf 3 35 receiver section propa gatio n d e la y t i me, lo w - to high- leve l output t plh c l = 150pf 300 ns propa gatio n d e la y t i me, high- to lo w - l e vel o u tput t ph l c l = 150pf 300 ns output enabl e t i me t en c l = 150pf , r l =3 k ? 200 ns output disab le t i me t dis c l = 150pf , r l =3 k ? 200 ns pulse skew (note 4) t sk ( p ) |t plh ? t ph l | 300 ns notes: 1. all t y pical va lu es ar e at v cc =3.3v or v cc = 5 .0v, and t a = 25c. 2. short-circuit durati ons sho u l d be contro lle d to prevent e x c eedi ng the devi c e abso l ute p o w e r-diss i pati o n ratings, an d no t more than on e output sh oul d be shorte d at a time. 3. t e st conditio n s are c1~ c 4= 0.1 f a t v cc = 3 .3v0.3v; c1= 0 .047 f , c2~ c 4= 0.33 f a t v cc =5.0v0.5v. 4. pulse skew is defined as |t plh ? t phl | of each channel of the same device.
UT3232 preliminary cm os ic unisonic technologi es co., ltd 6 of 7 w w w . uniso nic.co m.t w q w - r 5 0 2 - a 6 8 . b ? ty pic a l a ppli c a t io n ci rcui t t able1. t y pic a l operating c i rc uit and c apac itor valu es v cc (v) c1 (f) c2, c3, c4 (f ) c by pass (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 cm os ic unisonic technologi es co., ltd 7 of 7 w w w . uniso nic.co m.t w q w - r 5 0 2 - a 6 8 . b ut c a s s u m e s n o r e s p o n s i b ilit y f o r e q u ip m e n t f a ilu r e s t h a t r e s u lt f r o m u s in g p r o d u cts a t v a lu e s th a t ex ce ed, ev e n m om en t ar i l y , r ate d v a l ue s (s uch as m a x i m um rati ngs , ope ra ti ng con di t i o n ra ng es , o r other parameters ) l i s ted i n pr odu cts s peci f i c a t i on s of a ny and all u t c p r od ucts d es c r i bed o r contai ne d her ei n. ut c p r od ucts a r e n ot de si gn ed f or us e i n l i f e s upp ort a p p l i ances , de v i ce s o r sy st em s w her e m a l f un cti o n o f thes e p r od ucts ca n b e rea son abl y ex pected to re su l t i n per so n a l i n j u r y . r epr od ucti o n i n w hol e o r i n par t is p r oh i b i t e d w i tho u t the p r i o r w r i tte n con sent o f the co pyr i ght ow n e r . t h e i n f o rm ati o n pre sen ted i n th i s do cum e n t d o e s no t f o r m pa rt of an y q uotati o n or con t ra ct, i s b e l i e v e d to b e a ccu rate and re l i a b l e a nd m a y be cha n g ed w i tho u t n o ti ce.
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