technical data IN75232n/d eia-232-d interface 1 chip ic description the IN75232n, IN75232d are m onolithic device containing 3 independent drives and 5 receivers. these are designed to interface between date term inal equipm ent and date com m unication equipm ent as designed by eia-232-d. v cc- ra 5 dy 3 ra 4 dy 2 dy 1 ra 3 ra 2 ra 1 v cc+ 10 9 8 7 6 5 4 3 2 1 11 12 13 14 15 16 17 18 19 20 gn d ry 5 da 3 ry 4 da 2 da 1 ry 3 ry 2 ry 1 v cc bl o c k d i a g r a m i l 75 23 2n , i l 75 232 d i n 75232n , i n75232d features ? meets standard eia-232-d (revision of rs-232-c) ? designed to support data rate up to 120kbps ? drivers - current lim ited output 10 m a ty pical - power-off output im pedance 300 ? min - slew rate control by load capacitor - flexible supply voltage range - input com p atible with most ttl and dtl circuits ? receivers - input resistance 3 k ? to 7 k ? - input signal range 30 v - built-in input hy steresis (double threshold) ? 20 dip/so20: s-001ad (IN75232n) / s-013a (IN75232d) pin description nam e pin no function nam e pin no function v cc+ 1 driver section supply + v cc- 10 driver section supply - d a 1 1 6 d y 1 5 d a 2 1 5 d y 2 6 driver o u t p u t d a 3 1 3 d r i v e r i n p u t d y 3 8 v cc 20 receiver section supply gnd 11 ground r a 1 2 r y 1 1 9 r a 2 3 r y 2 1 8 ra3 4 receiver input ry3 17 receiver output r a 4 7 r y 4 1 4 r a 5 9 r y 5 1 2 1
IN75232 absolute maximum ratin gs sy m b o l p a r a m e t e r r a t i n g u n i t v cc+ supply voltage 15 v v cc- supply voltage -15 v v cc supply voltage 10 v vi (driver) input voltage -15 +7 v vi (reciver) input voltage 30 v vo (driver) output voltage -15 +15 v pt continuous power dissipation (below 25 o c ) 1 . 0 w t stg storage tem p erature -65 +175 o c t o p o p e r a t i n g tem p e r a t u r e 0 +75 o c schematic v cc - 300 70 6.2 8.2 70 7 10 3.6 v cc + da dy dri ver res e i v e r 10 2 4 2 5 9 v cc da dy 2
IN75232 electrical characteristics supply current v cc = 5v, t a = 25 o c sy m b o l p a r a m e t e r test c o n d i t i o n s m i n m a x u n i t i cc+ supply current v cc+ = 9 v v in = 1.9v 15 m a f r o m v cc+ no load v in = 0.8v 4.5 v cc+ = 12 v v in = 1.9v 19 no l o a d v in = 0.8v 5.5 v cc+ = 15 v v in = 1.9v 25 no l o a d v in = 0.8v 9 i cc- supply current v cc- = -9 v v in = 1.9v -15 m a f r o m v cc- no load v in = 0.8v -3.2 v cc- = -12 v v in = 1.9v -19 no l o a d v in = 0.8v -3.2 v cc- = -15 v v in = 1.9v -25 no l o a d v in = 0.8v -3.2 i cc supply current v cc = 5 v v in = 5.0v 30 m a f r o m v cc driver section sy m b o l p a r a m e t e r test c o n d i t i o n s m i n m a x u n i t v ih high level v cc+ = 9 v 1.9 v i n p u t v o l t a g e v cc- = -9 v v il low level 0.8 v i n p u t v o l t a g e v oh high level v il = 0.8v v cc+ = 9 v 6 v o u t p u t v o l t a g e rl = 3 k ? v cc- = -9 v v cc+ = 13.2 v 9 v cc- = -13.2 v v ol low level v ih = 1.9v v cc+ = 9 v -6 v o u t p u t v o l t a g e rl = 3 k ? v cc- = -9 v v cc+ = 13.2 v -9 v cc- = -13.2 v i ih high level v i = 5v 10 a i n p u t c u r r e n t i il low level v i = 0 -1.6 m a i n p u t c u r r e n t i os(h) short circuit v i = 0.8v -6 -12 m a o u t p u t c u r r e n t v o = 0 at high level i os(l) short circuit v i = 1.9v 6 12 m a o u t p u t c u r r e n t v o = 0 at low level r o output resistance, v cc+ = 0, v cc- = 0 300 ? p o w e r o f f v o = -2v to 2v 3
IN75232 driver sw itching characteristic v cc+ = 9v, v cc- = -9v t a = 25 o c sy m b o l p a r a m e t e r t e s t c o n d i t i o n s m i n m a x u n i t t plh propagation delay tim e , rl = 3 k ? 5 0 0 n s l o w - t o - h i g h - l e v e l o u t p u t cl = 15 f t phl propagation delay tim e , 175 ns high -to- low -level output see figure 1 t tlh transition tim e , 100 ns low-to-high-level output * t thl transition tim e , 75 ns high -to- low -level output* t tlh transition tim e , rl = 3 k ? to 7 k ? 2.5 s l o w - t o - h i g h - l e v e l o u t p u t * * cl = 2500 f ( t i p ) t thl transition tim e , 3.0 s high-to-low -level output** see figure 1 (tip) *- measured between 10 % and 90 % points of output waveform ** - measured between +3v and -3v points on the output waveform (eia-232-d condition) receiver section sy m b o l p a r a m e t e r t e s t c o n d i t i o n s m i n m a x u n i t v t + p o s i t i v e - g o i n g 1 . 7 5 2 . 2 5 v t h r e s h o l d v o l t a g e v t - n e g a t i v e - g o i n g 0 . 7 5 1 . 2 5 v t h r e s h o l d v o l t a g e v oh high level output v i = 0.75v, i ol = - 0.5m a 2 . 6 5 v v o l t a g e input o p e n , 2 . 6 5 i ol = -0.5 m a v ol low level output voltage v i = 3v, i ol = 10 m a 0.45 v i ih high-level input current v i = 25v 3.6 8.3 m a v i = 3v 0.43 i il low-level input current v i = -25v -3.6 -8.3 m a v i = -3v -0.43 i os short-circuit -3 m a o u t p u t c u r r e n t ( t i p ) receiver sw itching characteristic v cc = 5v sy m b o l p a r a m e t e r t e s t c o n d i t i o n s m i n m a x u n i t t plh propagation delay tim e , c l = 15 f 1 5 0 n s l o w - t o - h i g h - l e v e l o u t p u t r l = 3.9 k ? t phl propagation delay tim e , c l = 15 f 5 0 n s high -to- low -level output r l = 390 k ? t tlh transition tim e , c l = 15 f 1 7 5 n s low-to-high-level output r l = 3.9 k ? t thl transition tim e , c l = 15 f 2 0 n s high -to- low -level output r l = 390 k ? 4
IN75232 parameter measurement information dri ver c l r l te s t c i r c u i t out p u t pu l s e gene r a t o r (s e e n o te a ) res e i v e r v cc c l r1 te s t c i r c u i t out p u t ( se e no te c ) pu l s e gene r a t o r (s e e n o te a ) v o lt ag e wa v e f o rm in t p u t 50% 50% 1.5v 1.5v 3v v ol v oh ov 10n s t phl t pl h t tl h t th l out p u t t w = 25 s, vo lt age wa v e f o r m in t p u t 1.5v 1.5v 50% 10% 10% 90% 90% 50% 3v v ol v oh ov 10n s t ph l t pl h t tl h t th l out p u t note a. the pulse generator has the following characteristics. f = 200 khz, z o = 50 ? b. c included probe and jig capacitance. c. all diodes are 1n3064 or equivalent. fig1. propagation and transition tim e s typical application db 9 5 si o c a r d i l a 7 5232 n , d 9 8 6 7 5 4 3 2 1 +5 v tx ct s dt r ri -1 2 v /r i /d t r so u t /c t s rx rt s /r t s s i n ds r dc d +1 2 v /d c d /d s r ua r t IN75232n, d 5
IN75232 n s u f f i x p l as t i c d i p (m s - 0 0 1 a d) sy m b o l m i n m a x a 24. 8 9 26. 92 b 6. 1 7 . 1 1 c 5. 33 d 0. 36 0. 56 f 1. 14 1. 78 g h j 0 10 k 2. 92 3. 81 no t e s : l 7. 62 8. 26 1. d i m e n s i o n s ?a ?, ?b ? d o n o t i n cl u d e m o l d f l as h o r p r o t r u s i o n s . m 0. 2 0 . 3 6 m a x i m u m m o l d f l a s h o r p r o t r u s i o n s 0. 25 m m ( 0 . 010) p e r s i d e . n 0. 38 d su f f i x so i c (m s - 0 1 3 a c) sy m b o l m i n m a x a 12. 6 1 3 b 7. 4 7 . 6 c 2. 35 2. 65 d 0. 33 0. 51 f 0. 4 1 . 2 7 g h no t e s : j 0 8 1. d i m e n s i o ns a a n d b d o no t i n c l ud e m o l d f l a s h o r pr o t r u s i on . k 0. 1 0 . 3 2. m a x i m u m m o l d fl a s h o r p r o t ru s i o n 0 . 1 5 m m (0 . 0 0 6 ) p e r s i d e m 0. 23 0. 32 f o r a ; fo r b ? 0. 25 m m ( 0 . 010) p e r s i d e . p 10 10. 65 r 0. 25 0. 75 d i me n s i o n , mm 1. 27 9. 53 d i me n s i o n , mm 2. 54 7. 62 a b h c k c m j f m p g d r x 4 5 se a t i n g pl a n e 0.2 5 ( 0 . 0 1 0 ) m t -t - 1 20 10 11 l h m j a b f g d se a t i n g pl an e n k 0.2 5 ( 0 . 010) m t -t - c 1 20 10 11 6
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