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1 date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation sp3070e - sp3078e family 15kv esd-protected, 3.3v, 1/8 load, failsafe rs-485/rs422 transceivers ? description features 15kv esd protection for rs485 pins 3.3v low-power operation advanced receiver-failsafe protection for open, shorted or terminated lines up to 256 transceivers may share bus very low load for 8x greater fanout hot swap glitch protection re and de thermal shutdown protects against driver contention available in three industry standard foot- prints sp3070e, 3073 and 3076 in full-duplex (14 pin) sp3071e, 3074 and 3077 in full-duplex (8 pin) sp3072e, 3075 and 3078 in full-duplex (8 pin) three applications-optimized speed grades sp3070-72e: 250kbps slew-limited sp3073-75e: 500kbps slew-limited sp3076-78e: 16mbps high speed small form factor so-narrow packages industrial (-40 to +85oc) and extended (-40 to +85oc) temperature grades now available in lead free packaging 1 2 3 4 5 6 7 8 8 pin nsoic sp3072e sp3075e sp3078e half duplex b r o a d i gnd z y v cc 1 2 3 4 5 6 7 8 8 pin nsoic sp3071e sp3074e sp3077e full duplex b r o a d i gnd z y v cc nc ro re de di gnd 14 pin nsoic sp3070e sp3073e sp3076e full duplex v cc nc a b z y 1 2 3 4 5 6 14 13 12 11 10 9 nc gnd 7 8 applications industrial control, utility meters building automation, instrumentation, point of sale the sp3070-3078e differential line transceivers are suitable for bidirectional communication on balanced multipoint bus transmission lines and comply with both rs485 and rs422 eia standards. each device consists of a differential driver and differential receiver. all devices operate from a 3.3v power supply. high receiver input impedance allows a large number of transceivers to share a common data bus while maintaining signal margin and without excessive loading or use of expensive repeaters. the high impedance driver output is maintained over the entire common-mode voltage range from -7 to +12v. receivers will failsafe to logic 1 output when inputs are open, shorted or terminated. drivers include built-in short-circuit protection and a thermal-overload shutdown to protect against excessive power dissipation from bus contention or cable faults. all rs485 inputs are esd protected up to 15kv (air-gap and human body model) and up to 8kv contact discharge (iec 1000-4-2).
date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation 2 device architecture and block diagrams v cc d r nc a b z y r nc nc de reb gnd gnd 2 1 3 4 5 6 7 8 9 10 11 12 13 14 d d r a b z y r gnd 2 1 3 4 5 6 7 8 d v cc d r a b ro gnd 2 1 3 4 5 6 7 8 de v cc re di 14 pin full duplex: sp3070e, 250kbps slew limited sp3073e, 500kbps slew limited sp3076e, 16mbps 8 pin full duplex: sp3071e, 250kbps slew limited sp3074e, 500kbps slew limited sp3077e, 16mbps 8 pin half duplex: sp3072e, 250kbps slew limited sp3075e, 500kbps slew limited sp3078e, 16mbps devices are available in three industry standard architectures and footprints. in each footprint there are three speed grades available.
3 date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation these are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. exposure to absolute maximum rating conditions for extended periods of time may affect reliability. v cc .....................................................................................................+6.0v input voltage at control input pins (re, de).........................-0.3v to 6v driver input voltage (re, de)...............................................-0.3v to 6v driver output voltage (a, b, y, & z)....................................-8v to +13v receiver input voltage (a, b)..............................................-8v to +13v electrical characteristics absolute maximum ratings u nless otherwise noted v cc = +3.3 0.3v, ambient temperature t min < t a < t max . typical values are at v cc = 3.3, ambient temperature t a = +25oc. the ? denotes the specifications which apply over the full operating range unless otherwise noted. continuous power dissipation at ta = 70 o c 8-pin so (derate 5.88mw/ o c above +70 o c)................................471mw 8-pin pdip (derate 9.29mw/ o c above +70 o c)............................727mw 14-pin so (derate 8.33mw/ o c above +70 o c).............. .............667mw 14-pin pdip (derate 10mw/ o c above +70 o c).................. ..........800mw operating temperature ranges sp307_emn.................................................................-40oc to +125oc sp307_een ...............................................................-40oc to +85oc junction temperature............................................................. ..+150oc storage temperature range..........................................-65oc to +150o c lead temperature (soldering, 10s) ........................................... +300o c r e t e m a r a p. m y s. n i m. p y t. x a ms t i n u ? ? ? ? ? s n o i t i d n o c t u p t u o r e v i r d l a i t n e r e f f i dv d o 2v c c v 1 e r u g i f , ) 2 2 4 - s r ( ? 0 0 1 = l r 5 . 1v c c 1 e r u g i f , ) 5 8 4 - s r ( ? 4 5 = l r v c c ? ? ? ? ? d a o l o n f o e d u t i n g a m n i e g n a h c e g a t l o v t u p t u o l a i t n e r e f f i d v ? d o 2 . 0v ? ? ? ? ? 1 e r u g i f , ? 0 0 1 r o 4 5 = l r t u p t u o e d o m n o m m o c r e v i r d e g a t l o v v c o v c c 2 /3 v ? ? ? ? ? 1 e r u g i f , ? 0 0 1 r o 4 5 = l r f o e d u t i n g a m n i e g n a h c t u p t u o e d o m n o m m o c e g a t l o v v ? c o 2 . 0 v 1 e r u g i f , ? 0 0 1 r o 4 5 = l r e g a t l o v h g i h t u p n iv h i 2v ? ? ? ? ? e r , i d , e d e g a t l o v w o l t u p n iv l i 8 . 0v e r , i d , e d s i s e r e t s y h t u p n iv s y h 0 0 1v m ? ? ? ? ? e r , i d , e d t n e r r u c t u p n ii n i 1 -1a ? ? ? ? ? e r , i d , e d t s r i f e c n a d e p m i t u p n i ) p a w s t o h ( n o i t i s n a r t 10 1 ? k ? ? ? ? ? e r , e d e r o m w a r d l l i w n o i t i s n a r t t s r i f ) p a w s t o h ( t n e r r u c ) z d n a y ( e g a k a e l t u p t u o ) b d n a a ( x e l p u d l l u f i o 5 2 1 + a ? ? ? ? ? d n g = e d v c c v 6 . 3 r o d n g = v n i v 2 1 + = 0 0 1 - ? ? ? ? ? v n i v 7 - = t n e r r u c t i u c r i c - t r o h s r e v i r di d s o 00 5 2 a mv v 7 - t u o ) a 4 e r u g i f ( , v 2 1 0 5 2 -0
date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation 4 electrical characteristics unless otherwise noted v cc = +3.3 0.3v, ambient temperature t min < t a < t max . typical values are at v cc = 3.3, ambient temperature t a = +25oc. the ? denotes the specifications which apply over the full operating range unless otherwise noted. s r e t e m a r a pm y sn i mp y tx a ms t i n u ? ? ? ? ? s n o i t i d n o c ) b d n a a ( t n e r r u c t u p n i x e l p u d f l a h i b , a 5 2 1 a ? ? ? ? ? d n g = e d v c c 6 . 3 r o d n g = v n i v 2 1 + = 0 0 1 -v n i v 7 - = d l o h s e r h t n w o d t u h s - l a m r e h tt s t 5 6 1c o ? ? ? ? ? s i s e r e t s y h n w o d t u h s l a m r e h tt h s t 5 1c o ? ? ? ? ? r e v i e c e r d l o h s e r h t l a i t n e r e f f i d r e v i e c e r ) y t i v i t i s n e s ( v h t 0 0 2 -5 2 1 -0 5 -v m v 7 -v m c v 2 1 s i s e r e t s y h t u p n i r e v i e c e rv ? h t 5 1v m ? ? ? ? ? v 0 = b v + a v e g a t l o v h g i h t u p t u o o rv h o - c c v 6 . 0 v ? ? ? ? ? i o a m 1 - = e g a t l o v w o l t u p t u o o rv l o 4 . 0v ? ? ? ? ? i o a m 1 = t a t n e r r u c t u p t u o e t a t s - i r t r e v i e c e r i r z o 1 - / +a ? ? ? ? ? v 0 o v c c e c n a t s i s e r t u p n i r e v i e c e rr n i 6 9 ? k ? ? ? ? ? v v 7 - m c v 2 1 t i u c r i c - t r o h s t u p t u o r e v i e c e r t n e r r u c i r z o 0 6 a mv v 0 o r v c c t n e r r u c y l p p u s t n e r r u c y l p p u si c c 8 . 05 . 1 a m ? ? ? ? ? v = e d , 0 = e r , d a o l o n c c 8 . 05 . 1v = e r , d a o l o n c c v = e d , c c 8 . 05 . 10 = e d , 0 = e r , d a o l o n n w o d t u h s n i t n e r r u c y l p p u s e d o m i n d h s 5 0 . 03a v = e r c c d n g = e d , n o i t c e t o r p d s e b d n a , a , z , y r o f n o i t c e t o r p d s e 5 1 v k ? ? ? ? ? l e d o m y d o b n a m u h 5 1 ) 2 - 4 - 0 0 0 1 c e i ( p a g r i a 8 ) 2 - 4 - 0 0 0 1 c e i ( t c a t n o c
5 date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation receiver switching characteristics driver switching characteristics s c i t s i r e t c a r a h c g n i h c t i w s r e v i r d e 2 7 0 3 p s & e 1 7 0 3 p s , e 0 7 0 3 p s r e t e m a r a pl o b m y s. n i m. p y t. x a ms t i n us n o i t i d n o c y a l e d n o i t a g a p o r p r e v i r d t h l p d 0 5 2- 0 0 5 1s n c l r , f p 0 5 = l , ? 4 5 = 3 & 2 e r u g i f t l h p d 0 5 2- 0 0 5 1s n r o e s i r t u p t u o l a i t n e r e f f i d r e v i r d e m i t l l a f t , r d t f d 0 5 3- 0 0 6 1s n c l r , f p 0 5 = l , ? 4 5 = 3 & 2 e r u g i f w e k s t u p t u o l a i t n e r e f f i d r e v i r d t ( h l p d t - l h p d ) t w e k s d -- 0 0 2s n c l r , f p 0 5 = l , ? 4 5 = 3 & 2 e r u g i f e t a r a t a d m u m i x a m0 5 2-- s p b k h g i h t u p t u o o t e l b a n e r e v i r dt h z d -- 0 0 5 2s n4 e r u g i f w o l t u p t u o o t e l b a n e r e v i r dt l z d -- 0 0 5 2s n5 e r u g i f w o l m o r f e m i t e l b a s i d r e v i r dt z l d -- 0 0 1s n5 e r u g i f h g i h m o r f e m i t e l b a s i d r e v i r dt z h d -- 0 0 1s n4 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i r d h g i h t u p t u o t ) n d h s ( h z d -- 0 0 5 5s n4 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i r d w o l t u p t u o t ) n d h s ( l z d -- 0 0 5 5s n5 e r u g i f n w o d t u h s o t e m i tt n d h s 0 50 0 20 0 6s n u nless otherwise noted v cc = +3.3 0.3v, ambient temperature t min < t a < t max . typical values are at v cc = 3.3, ambient temperature t a = +25oc. unless otherwise noted v cc = +3.3 0.3v, ambient temperature t min < t a < t max . typical values are at v cc = 3.3, ambient temperature t a = +25oc. 2 7 0 3 p s & 1 7 0 3 p s , 0 7 0 3 p s s c i t s i r e t c a r a h c g n i h c t i w s r e v i e c e r r e t e m a r a pl o b m y s. n i m. p y t. x a ms t i n us n o i t i d n o c y a l e d n o i t a g a p o r p r e v i e c e r t h l p r -- 0 0 2s n c l 7 & 6 e r u g i f , f p 5 1 = t l h p r -- 0 0 2s n t ( w e k s t u p t u o r e v i e c e r h l p d t - l h p d )t w e k s r -- 0 3s nc l 7 & 6 e r u g i f , f p 5 1 = e t a r a t a d0 5 2-- s p b k h g i h t u p t u o o t e l b a n e r e v i e c e rt h z r -- 0 5s n8 e r u g i f w o l t u p t u o o t e l b a n e r e v i e c e rt l z r -- 0 5s n8 e r u g i f w o l m o r f e m i t e l b a s i d r e v i e c e rt z l r -- 0 0 2s n8 e r u g i f h g i h m o r f e m i t e l b a s i d r e v i e c e rt z h r -- 0 0 1s n8 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i e c e r h g i h t u p t u o t ) n d h s ( h z r -- 0 0 0 4s n8 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i e c e r w o l t u p t t u o t ) n d h s ( l z r -- 0 0 0 4s n8 e r u g i f
date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation 6 receiver switching characteristics driver switching characteristics u nless otherwise noted v cc = +3.3 0.3v, ambient temperature t min < t a < t max . typical values are at v cc = 3.3, ambient temperature t a = +25oc. u nless otherwise noted v cc = +3.3 0.3v, ambient temperature t min < t a < t max . typical values are at v cc = 3.3, ambient temperature t a = +25oc. 5 7 0 3 p s & 4 7 0 3 p s , 3 7 0 3 p s s c i t s i r e t c a r a h c g n i h c t i w s r e v i e c e r r e t e m a r a pl o b m y s. n i m. p y t. x a ms t i n us n o i t i d n o c y a l e d n o i t a g a p o r p r e v i e c e r t h l p r -- 0 0 2s n c l 7 & 6 e r u g i f , f p 5 1 = t l h p r -- 0 0 2s n t ( w e k s t u p t u o r e v i e c e r h l p d t - l h p d )t w e k s r -- 0 3s nc l 7 & 6 e r u g i f , f p 5 1 = e t a r a t a d m u m i x a m0 0 5-- s p b k h g i h t u p t u o o t e l b a n e r e v i e c e rt h z r -- 0 5s n8 e r u g i f w o l t u p t u o o t e l b a n e r e v i e c e rt l z r -- 0 5s n8 e r u g i f w o l m o r f e m i t e l b a s i d r e v i e c e rt z l r -- 0 5s n8 e r u g i f h g i h m o r f e m i t e l b a s i d r e v i e c e rt z h r -- 0 5s n8 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i e c e r h g i h t u p t u o t ) n d h s ( h z r -- 0 0 0 4s n8 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i e c e r w o l t u p t t u o t ) n d h s ( l z r -- 0 0 0 4s n8 e r u g i f n w o d t u h s o t e m i tt n d h s 0 50 0 20 0 6s n s c i t s i r e t c a r a h c g n i h c t i w s r e v i r d e 5 7 0 3 p s & e 4 7 0 3 p s , e 3 7 0 3 p s r e t e m a r a pl o b m y s. n i m. p y t. x a ms t i n us n o i t i d n o c y a l e d n o i t a g a p o r p r e v i r d t h l p d 0 8 1-0 0 8s n c l r , f p 0 5 = l , ? 4 5 = 3 & 2 e r u g i f t l h p d 0 8 1-0 0 8s n r o e s i r t u p t u o l a i t n e r e f f i d r e v i r d e m i t l l a f t , r d t f d 0 0 2-0 0 8s n c l r , f p 0 5 = l , ? 4 5 = 3 & 2 e r u g i f w e k s t u p t u o l a i t n e r e f f i d r e v i r d t ( h l p d t - l h p d ) t w e k s d -- 0 0 1s n c l r , f p 0 5 = l , ? 4 5 = 3 & 2 e r u g i f e t a r a t a d0 0 5-- s p b k h g i h t u p t u o o t e l b a n e r e v i r dt h z d -- 0 0 5 2s n4 e r u g i f w o l t u p t u o o t e l b a n e r e v i r dt l z d -- 0 0 5 2s n5 e r u g i f w o l m o r f e m i t e l b a s i d r e v i r dt z l d -- 0 0 1s n5 e r u g i f h g i h m o r f e m i t e l b a s i d r e v i r dt z h d -- 0 0 1s n4 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i r d h g i h t u p t u o t ) n d h s ( h z d -- 0 0 5 4s n4 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i r d w o l t u p t u o t ) n d h s ( l z d -- 0 0 5 4s n5 e r u g i f n w o d t u h s o t e m i tt n d h s 0 50 0 20 0 6s n
7 date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation driver switching characteristics u nless otherwise noted vcc=+3.3 0.3v, ambient temperature tmin < ta < tmax. typical values are at vcc = 3.3, ambient temperature ta = +25oc receiver switching characteristics unless otherwise noted vcc=+3.3 0.3v, ambient temperature tmin < ta < tmax. typical values are at vcc = 3.3, ambient temperature ta = +25oc s c i t s i r e t c a r a h c g n i h c t i w s r e v i r d e 8 7 0 3 p s & e 7 7 0 3 p s , e 6 7 0 3 p s r e t e m a r a pl o b m y s. n i m. p y t. x a ms t i n us n o i t i d n o c y a l e d n o i t a g a p o r p r e v i r d t h l p d -- 0 5s n c l r , f p 0 5 = l , ? 4 5 = 3 & 2 e r u g i f t l h p d -- 0 5s n r o e s i r t u p t u o l a i t n e r e f f i d r e v i r d e m i t l l a f t , r d t f d -- 5 1s n c l r , f p 0 5 = l , ? 4 5 = 3 & 2 e r u g i f w e k s t u p t u o l a i t n e r e f f i d r e v i r d t ( h l p d t - l h p d ) t w e k s d --8 s n c l r , f p 0 5 = l , ? 4 5 = 3 & 2 e r u g i f e t a r a t a d6 1-- s p b m h g i h t u p t u o o t e l b a n e r e v i r dt h z d -- 0 5 1s n4 e r u g i f w o l t u p t u o o t e l b a n e r e v i r dt l z d -- 0 5 1s n5 e r u g i f w o l m o r f e m i t e l b a s i d r e v i r dt z l d -- 0 0 1s n5 e r u g i f h g i h m o r f e m i t e l b a s i d r e v i r dt z h d -- 0 0 1s n4 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i r d h g i h t u p t u o t ) n d h s ( h z d -- 0 0 8 1s n4 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i r d w o l t u p t u o t ) n d h s ( l z d -- 0 0 8 1s n5 e r u g i f n w o d t u h s o t e m i tt n d h s 0 50 0 20 0 6s n 8 7 0 3 p s & 7 7 0 3 p s , 6 7 0 3 p s s c i t s i r e t c a r a h c g n i h c t i w s r e v i e c e r r e t e m a r a pl o b m y s. n i m. p y t. x a ms t i n us n o i t i d n o c y a l e d n o i t a g a p o r p r e v i e c e r t h l p r -0 45 7s n c l , 7 & 6 e r u g i f , f p 5 1 = c o 5 8 + o t 0 4 - t l h p r -0 45 7s n t ( w e k s t u p t u o r e v i e c e r h l p d t - l h p d )t w e k s r --8 s nc l , 7 & 6 e r u g i f , f p 5 1 = e t a r a t a d6 1-- s p b m h g i h t u p t u o o t e l b a n e r e v i e c e rt h z r -- 0 6s nc o 5 8 + o t 0 4 - , 8 e r u g i f w o l t u p t u o o t e l b a n e r e v i e c e rt l z r -- 0 6s nc o 5 8 + o t 0 4 - , 8 e r u g i f w o l m o r f e m i t e l b a s i d r e v i e c e rt z l r -- 0 5s n8 e r u g i f h g i h m o r f e m i t e l b a s i d r e v i e c e rt z h r -- 0 5s n8 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i e c e r h g i h t u p t u o t ) n d h s ( h z r -- 0 0 8 1s n8 e r u g i f o t n w o d t u h s m o r f e l b a n e r e v i e c e r w o l t u p t u o t ) n d h s ( l z r -- 0 0 8 1s n8 e r u g i f n w o d t u h s o t e m i tt n d h s 0 50 0 20 0 6s n
date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation 8 y z d di r l 54 ? c l 50pf 3.3v v od figure 3. driver propagation delay time test circuit and timing diagram figure 1. driver dc test circuit figure 2. receiver dc test circuit t phl t plh z y 10% 90% 10% 90% v skew = t plh - t phl v diff = v(y) - v(z) v o v cc v cc /2 0 di v diff -v o 1/2 v o t r t f v o 1/2 v o out r a b v id re r/2 r/2 v oc d v cc v od d i 0 or 3v
9 date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation figure 4. driver enable & disable times test circuit & timing diagram generator 50 ? s1 r l = 500 ? out c l = 50pf d 0 or v cc z y di de t lz 0.25v out v cc v om = (v ol + v cc )/2 t zl, t zl(shdn v cc /2 0 0 a/y d di = 0 or 3v b/z de = 0 or 3v i osd 100 ? -7v to +12v v figure 4a. driver contention test
date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation 10 figure 6. receiver propagation delay test circuit & timing diagram figure 5. driver enable & disable times test circuit & timing diagram de v ol t lz 0.25v v cc out v cc v om = (v ol + v cc )/2 t zl, t zl(shdn v cc /2 0 out r a b v id re c l 15pf t phl t plh v ol 1.5v out v oh a b +1v -1v generator 50 ? s1 r l = 500 ? out c l = 50pf d 0 or v cc z y di v cc
11 date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation figure 8. receiver enable & disable timing diagram figure 7. receiver enable & disable times test circuit 1.5v -1.5v s3 a generator 50 ? c l = 15pf r 1k ? s1 s2 v cc b re 3v 0v 1.5v v cc re out s1 is closed, s2 is open, s3 = -1.5v t zl, t zl(shdn) v ol = v cc /2 v ol 3v 0v 1.5v v cc re out s1 is closed, s2 is open, s3 = -1.5v t lz v ol 0.25v 3v 1.5v 0v re out s1 is open s2 is closed s3 = 1.5v v oh t hz 0.25v 3v 1.5v 0v re out s1 is open s2 is closed s3 = 1.5v v oh t zh, t zh(shdn) v oh /2
date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation 12 function tables ) x e l p u d l l u f ( e 6 7 0 3 p s , e 3 7 0 3 p s , e 0 7 0 3 p s g n i t t i m s n a r t s t u p n is t u p t u o e re di dzy x1101 x1010 00x z - h g i h 10x n w o d t u h s ) x e l p u d l l u f ( e 6 7 0 3 p s , e 3 7 0 3 p s , e 0 7 0 3 p s g n i v i e c e r s t u p n it u p t u o e re db , ao r 0x v m 0 5 - 1 0x v m 0 0 2 - 0 xx , n e p o d e t r o h s 1 11 x z - h g i h 10 x n w o d t u h s ) x e l p u d f l a h ( e 8 7 0 3 p s , e 5 7 0 3 p s , e 2 7 0 3 p s g n i t t i m s n a r t s t u p n is t u p t u o e re di dz / by / a x1101 x1010 00x z - h g i h 10 x n w o d t u h s ) x e l p u d f l a h ( e 8 7 0 3 p s , e 5 7 0 3 p s , e 2 7 0 3 p s g n i v i e c e r s t u p n it u p t u o e re db , ao r 0x v m 0 5 - 1 0x v m 0 0 2 - 0 xx d e t r o h s / n e p o1 11 x z - h g i h 10 x n w o d t u h s ) x e l p u d l l u f ( e 7 7 0 3 p s , e 4 7 0 3 p s , e 1 7 0 3 p s g n i t t i m s n a r t s t u p n is t u p t u o i dz y 10 1 01 0 ) x e l p u d l l u f ( e 7 7 0 3 p s , e 4 7 0 3 p s , e 1 7 0 3 p s g n i v i e c e r s t u p n it u p t u o b , ao r v m 0 5 - 1 v m 0 0 2 - 0 d e t r o h s / n e p o1
13 date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation pin description x e l p u d l l u f s e c i v e d f l a h x e l p u d s e c i v e d n i p e m a n n o i t c n u f n i p e 0 7 0 3 p se 1 7 0 3 p se 2 7 0 3 p s e 3 7 0 3 p se 4 7 0 3 p se 5 7 0 3 p s e 6 7 0 3 p se 7 7 0 3 p se 8 7 0 3 p s r e b m u n n i p 22 1o r ) b ? a ( f i d n a w o l s i e r n e h w . t u p t u o r e v i e c e r . w o l s i o r , v m 0 0 2 - ) b ? a ( f i . h g i h s i o r , v m 0 5 - 3- 2e r . d e l b a n e s i o r , w o l s i e r n e h w . e l b a n e t u p t u o r e v i e c e r e b d l u o h s e r . e c n a d e p m i h g i h s i o r , h g i h s i e r n e h w - t o h a s i e r . e d o m n w o d t u h s r e t n e o t w o l e d d n a h g i h . t u p n i p a w s 4- 3e d e r a s t u p t u o , h g i h s i e d n e h w . e l b a n e t u p t u o r e v i r d e d . e c n a d e p m i h g i h e r a s t u p t u o , w o l s i e d n e h w . d e l b a n e s i e d . e d o m n w o d t u h s r e t n e o t h g i h e r d n a w o l e b d l u o h s . t u p n i p a w s - t o h a 53 4 i d s e c r o f i d n o l e v e l w o l a , h g i h e d h t i w . t u p n i r e v i r d , y l r a l i m i s . h g i h t u p t u o g n i t r e v n i d n a w o l t u p t u o g n i t r e v n i n o n d n a h g i h t u p t u o g n i t r e v n i n o n s e c r o f i d n o l e v e l h g i h a . w o l t u p t u o g n i t r e v n i 7 , 645d n gd n u o r g 95 -y t u p t u o r e v i r d g n i t r e v n i n o n 0 16-z t u p t u o r e v i r d g n i t r e v n i 1 17 -b t u p n i r e v i e c e r g n i t r e v n i --7b t u p t u o r e v i r d g n i t r e v n i d n a t u p n i r e v i e c e r g n i t r e v n i 2 18-a t u p n i r e v i e c e r g n i t r e v n i n o n --6a r e v i r d g n i t r e v n i n o n d n a t u p n i r e v i e c e r g n i t r e v n i n o n t u p t u o 4 118v c c y l p p u s e v i t i s o pv c c s s a p y b .v c c f u 1 . 0 a h t i w d n g o t . r o t i c a p a c 3 1 , 8 , 1--c nt c e n n o c o n
date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation 14 detailed description the sp307xe family of high speed transceiv- ers for rs-485/rs-422 communication con- tain one driver and one receiver. these devices feature fail-safe circuitry, which guar- antees a logic-high receiver output when the receiver inputs are open or shorted, or when they are connected to a terminated transmis- sion line with all drivers disabled. the sp3070e, sp3072e, sp3073e, sp3075e, sp3076e and sp3078e also feature a hotswap capability allowing live insertion with- out error data transfer. the sp3070e, sp3071e and sp3072e feature reduced slew- rate drivers that minimize emi and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 250kbps. the sp3073e, sp3074e and sp3075e also offer slew -rate limits allowing transmit speeds up to 500kbps. the sp3076e, sp3077e, sp3078e driver slew rates are not limited, making transmit speeds up to 16mbps possible. the sp3072e, sp3075e and sp3078e are half-duplex transceivers, while the sp3070e, sp3071e, sp3073e, sp3074e, sp3076e, and sp3077e are full duplex transceivers. all devices operate from a single 3.3v supply. drivers are output short-circuit current limited. thermal-shutdown circuitry protects drivers against excessive power dissipation. when activated, the thermal-shutdown circuitry places the driver outputs into a high-imped- ance state. receiver input filtering sp3070-sp3075 receivers incorporate input filtering in addition to input hysteresis. this filtering enhances noise immunity with differ- ential signals that have very slow rise and fall times. receiver propagation delay increases by 25% due to this filtering. fail safe the sp3070 family guarantees a logic-high receiver output when the receiver inputs are shorted, open, or when they are connected to a terminated transmission line with all drivers disabled. if a - b is less than or equal to - 200mv, ro is logic low. in the case of a terminated bus with all transmitters disabled the receiver's differential input voltage is pulled to 0v by the termination. with the receiver thresholds of the sp3070e family, this results in a logic high with a 50mv minimum noise margin. in compliance with the eia/tia-485 standard, the sp3070e family has a 50mv - 200mv threshold. hot-swap capability when circuit boards are inserted into a hot backplane, differential disturbances to the data bus can lead to data errors. upon initial circuit board insertion, the data communica- tion processor undergoes its own power-up sequence. during this period, the processor's logic-output drivers are high impedance and are unable to drive the de and re inputs of these devices to a defined logic level. leak- age currents up to 10 a from the high-imped- ance state of the processor's logic drivers could cause standard cmos enable inputs of a transceiver to drift to an incorrect logic level. additionally, parasitic circuit board capaci- tance could cause coupling of vcc or gnd to the enable inputs. without the hot-swap capa- bility, these factors could improperly enable the transceiver's driver or receiver. when vcc rises, an internal pulldown circuit holds de low and re high for approximately 10 microseconds. after the initial power-up sequence, the pulldown circuit becomes trans- parent, resetting the hot-swap tolerable input. 15kv esd protection as with all sipex devices, esd-protection structures are incorporated on all pins to protect against electrostatic discharges en- countered during handling and assembly. the driver output and receiver inputs of the sp3070e family of devices have extra protec- tion against static electricity. sipex's engi- neering team have developed state of the art structures to protect these pins against esd of 15kv without damage. the esd structures withstand high esd in all states: normal op- detailed description
15 date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation eration, shutdown, and powered down. after an esd event, the sp3070e - sp3078e keep working without latchup or damage. esd protection can be tested in various ways. the transmitter outputs and receiver inputs of the sp3070e - sp3078e are characterized for protection to the following limits: 15kv using the human body model 8kv using the contact discharge method specified in iec 1000-4-2 15kv airgap esd test conditions esd performance depends on a variety of conditions. contact sipex for a reliability report that documents test setup, method- ology and results. iec 1000-4-2 the iec 1000-4-2 standard covers esd testing and performance of finished equip- ment. however, it does not specifically refer to integrated circuits. the sp3070e family of devices helps you design equipment to meet iec 1000-4-2, without the need for additional esd-protection components. the major difference between tests done using the human body model and iec 1000- 4-2 is higher peak current in iec 1000-4-2, because series resistance is lower in the iec 1000-4-2 model. hence, the esd with- stand voltage measured to ec 1000-4-2 is generally lower than that measured using the human body model. the air-gap test involves approaching the device with a charged probe. the contact- discharge method connects the probe to the device before the probe is energized. machine model the machine model for esd tests all pins using a 200pf storage capacitor and zero discharge resistance. the objective is to emulate the stress caused when i/o pins are contacted by handling equipment during test and assembly. detailed description 256 transceivers on the bus the standard rs-485 receiver input imped- ance is 12k ? (1 unit load), and the standard driver can drive up to 32 unit loads. the sp3070e family of transceivers has a 1/8- unit load receiver input impedance (96 ? ), allowing up to 256 transceivers to be con- nected in parallel on one communication line. any combination of these devices as well as other rs-485 transceivers with a total of 32 unit loads or fewer can be con- nected to the line. reduced emi and reflections the sp3070e, sp3071e and sp3072e fea- ture reduced slew-rate drivers that minimize emi and reduce reflections caused by im- properly terminated cables, allowing error- free data transmission up to 250kbps. the sp3073, sp3074 and sp3075 offer higher driver output slew-rate limits, allowing trans- mit speeds up to 500kbps. low power shutdown mode low-power shutdown mode is initiated by bringing both re high and de low. in shut- down, the devices typically draw only 50na of supply current. re and de can be driven simultaneously; the parts are guaranteed not to enter shut- down if re is high and de is low for less than 50ns. if the inputs are in this state for at least 600ns, the parts are guaranteed to enter shutdown. enable times t zh and t zl assume the part was not in a low-power shutdown state. enable times t zh(shdn) and t zl(shdn) assume the parts were shut down. it takes drivers and receivers longer to become enabled from low-power shutdown mode t zh(shdn) and t zl(shdn) than from driver/receiver-dis- able mode (t zh , t zl )
date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation 16 driver output protection two mechanisms prevent excessive output current and power dissipation caused by faults or by bus contention. first, current limit on the ouput stage, provides immediate protection against short circuits over the whole common-mode voltage range. sec- ond, a thermal-shutdown circuit, forces the driver outputs into a high-impedance state if the die temperature becomes excessive. line length the rs-485/rs422 standard covers line lengths up to 4000ft. detailed description typical applications the sp3072e, sp3075e and sp3078e transceivers are designed for bidirectional data communications on multipoint bus trans- mission lines. to minimize reflections, terminate the line at both ends in its characteristic impedance, and keep stub lengths off the main line as short as possible. the slew-rate-limited sp3070 - sp3075e are more tolerant of imperfect termination. parts selector guide t r a p r e b m u n l l u f / f l a h x e l p u d e t a r a t a d s p b m - t u h s n w o d r e v i e c e r e l b a n e r e v i r d . s n a r t s u b n o n i p t n u o c d r a d n a t s y r t s u d n i t u o n i p n i p e l b i t a p m o c : m o r f e d a r g p u e 0 7 0 3 p sl l u f5 2 . 0s e ys e y6 5 24 10 8 1 5 7 , e 0 7 0 3 x a m e 1 7 0 3 p sl l u f5 2 . 0o no n6 5 28 9 7 1 5 7 , e 1 7 0 3 x a m3 9 4 3 p s e 2 7 0 3 p sf l a h5 2 . 0s e ys e y6 5 28 6 7 1 5 7 , e 2 7 0 3 x a m3 8 4 3 p s e 3 7 0 3 p sl l u f5 . 0s e ys e y6 5 24 10 8 1 5 7 , e 3 7 0 3 x a m e 4 7 0 3 p sl l u f5 . 0o no n6 5 28 9 7 1 5 7 , e 4 7 0 3 x a m e 5 7 0 3 p sf l a h5 . 0s e ys e y6 5 28 6 7 1 5 7 , e 5 7 0 3 x a m4 9 4 3 p s e 6 7 0 3 p sl l u f6 1s e ys e y6 5 24 10 8 1 5 7 , e 6 7 0 3 x a m1 9 4 3 p s e 7 7 0 3 p sl l u f6 1o no n6 5 28 9 7 1 5 7 , e 7 7 0 3 x a m0 9 4 3 p s e 8 7 0 3 p sf l a h6 1s e ys e y 6 5 28 6 7 1 5 7 , e 8 7 0 3 x a m, 5 8 4 3 p s 1 8 4 3 p s
17 date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation package: 8 pin nsoic a a1 a2 side view seating plane section b-b with plating symbol min nom max a 1.35 - 1.75 a1 0.1 - 0.25 a2 1.25 - 1.65 b 0.31 - 0.51 c 0.17 - 0.24 d e e1 e l 0.4 - 1.27 l1 l2 ?0o-8o ?1 5o - 15o note: dimensions in (mm) 8 pin nsoic jedec mo-012 (aa) variation 4.90 bsc 6.00 bsc 3.90 bsc 1.27 bsc 1.04 ref 0.25 bsc gauge plane l1 l ? 1 ? seating plane l2 view c to p view b see view c b b e e/2 e1 index area (d/2 x e1/2) e1/2 d 1 e c base metal b
date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation 18 package: 14 pin nsoic to p view b gauge plane l1 l ? 1 ? seating plane l2 view c see view c b b section b-b with plating c base metal b a a1 a2 symbol min nom max a 1.35 - 1.75 a1 0.1 - 0.25 a2 1.25 - 1.65 b 0.31 - 0.51 c 0.17 - 0.25 d e e1 e l 0.4 - 1.27 l1 l2 ?0o-8o ?1 5o - 15o note: dimensions in (mm) 1.27 bsc 1.04 ref 0.25 bsc 14 pin nsoic jedec mo-012 (ab) variation 8.65 bsc 6.00 bsc 3.90 bsc e e/2 e1 index area (d/2 x e1/2) e1/2 d 1 e side view seating plane
19 date: 03/02/05 sp3070e - sp3078e family, 15kv esd-protected, failsafe rs-485/rs422 transceivers ? copyright 2005 sipex corporation corporation analog excellence sipex corporation headquarters and sales office 233 south hillview drive milpitas, ca 95035 tel: (408) 934-7500 fax: (408) 935-7600 model temperature range package sp3070een .................................................... -40 ? c to +85 ? c ..................................................... 14-pin nsoic sp3070een/tr .............................................. -40 ? c to +85 ? c ..................................................... 14-pin nsoic sp3070emn .................................................. -40 ? c to +125 ? c .................................................... 14-pin nsoic sp3070emn/tr ............................................ -40 ? c to +125 ? c .................................................... 14-pin nsoic sp3071een .................................................... -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3071een/tr .............................................. -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3071emn .................................................. -40 ? c to +125 ? c ...................................................... 8-pin nsoic sp3071emn/tr ............................................ -40 ? c to +125 ? c ...................................................... 8-pin nsoic sp3072een .................................................... -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3072een/tr .............................................. -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3072emn .................................................. -40 ? c to +125 ? c ...................................................... 8-pin nsoic sp3072emn/tr ............................................ -40 ? c to +125 ? c ...................................................... 8-pin nsoic sp3073een .................................................... -40 ? c to +85 ? c ..................................................... 14-pin nsoic sp3073een/tr .............................................. -40 ? c to +85 ? c ..................................................... 14-pin nsoic sp3073emn .................................................. -40 ? c to +125 ? c .................................................... 14-pin nsoic sp3073emn/tr ............................................ -40 ? c to +125 ? c .................................................... 14-pin nsoic sp3074een .................................................... -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3074een/tr .............................................. -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3074emn .................................................. -40 ? c to +125 ? c ...................................................... 8-pin nsoic sp3074emn/tr ............................................ -40 ? c to +125 ? c ...................................................... 8-pin nsoic sp3075een .................................................... -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3075een/tr .............................................. -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3075emn .................................................. -40 ? c to +125 ? c ...................................................... 8-pin nsoic sp3075emn/tr ............................................ -40 ? c to +125 ? c ...................................................... 8-pin nsoic sp3076een .................................................... -40 ? c to +85 ? c ..................................................... 14-pin nsoic sp3076een/tr .............................................. -40 ? c to +85 ? c ..................................................... 14-pin nsoic sp3076emn .................................................. -40 ? c to +125 ? c .................................................... 14-pin nsoic sp3076emn/tr ............................................ -40 ? c to +125 ? c .................................................... 14-pin nsoic sp3077een .................................................... -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3077een/tr .............................................. -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3077emn .................................................. -40 ? c to +125 ? c ...................................................... 8-pin nsoic sp3077emn/tr ............................................ -40 ? c to +125 ? c ...................................................... 8-pin nsoic sp3078een .................................................... -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3078een/tr .............................................. -40 ? c to +85 ? c ....................................................... 8-pin nsoic sp3078emn .................................................. -40 ? c to +125 ? c ...................................................... 8-pin nsoic sp3078emn/tr ............................................ -40 ? c to +125 ? c ...................................................... 8-pin nsoic ordering information for availability of pdip or other packaging contact factory. available in lead free packaging. to order add ?-l? suffix to part number. example: sp3074een/tr = standard; sp3074een-l/tr = lead free /tr = tape and reel pack quantity is 2,500 for nsoic. click here to order samples

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