1 ps8521a 02/12/01 oe gnd v cc y out a in 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 sotiny ? logic buffer with 3-state output features ? high-speed: t pd = 1.8ns typical ? broad operating range: v cc = 1.8v ?3.6v ? power down high-impedance inputs/outputs ? high output drive: 24ma at 3v v cc ? package: 5-pin space saving sot23 and sc70 description the pi74st1g125 is a buffer with 3-state output that operates over the 1.8v to 3.6v v cc operating range. pericom?s pi74st series of products are produced using the company?s advanced submicron technology. pi74st1g125 block diagram pinout s t u p n it u p t u o e oa n i y t u o l l h l h x l h z function table notes: h = high logic level l = low logic level x = don?t care z = high impedance state pin description s e m a n n i pn o i t p i r c s e d a n i t u p n i e ot u p n i y t u o t u p t u o 5-pin t,c recommended operating conditions (1) note: 1. unused inputs must be held high or low. they may not float. r e t e m a r a pn o i t i d n o c. n i m. x a ms t i n u v ( e g a t l o v y l p p u s c c )8 . 16 . 3 v v ( e g a t l o v t u p n i n i )05 . 5 v ( e g a t l o v t u p t u o t u o )0v c c e r u t a r e p m e t g n i t a r e p o0 4 ?5 8c d n a e s i r t u p n i t ( e m i t l l a f r t , f ) v c c , v 8 . 1 = v 2 . 0 v 5 . 2 00 2v / s n v c c , v 3 . 3 = v 3 . 0 00 1 oe a in y out
2 ps8521a 02/12/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74st1g125 sotiny ? logic buffer with 3-state output dc electrical characteristics (over supply voltage and operating temperature ranges, unless otherwise specified) supply voltage (v cc ) .................................................. ?0.5v to +4v dc input voltage (v in ) ............................................... ?0.5v to +6v dc output voltage (v out ) ......................................... ?0.5v to +6v dc input diode current (i ik ) ................................ ?50ma to 20ma dc output diode current (i ok ) ............................ ?50ma to 20ma dc output current (i out ) ................................................... 50ma dc v cc /gnd current (i cc /i gnd ) ........................................ 50ma storage temperature (t stg ) .................................. ?65c to +150c junction lead temperature (ios) ............................................ 200c power dissipation sot23 .............................................. 200mw sc70 ................................................. 150mw absolute maximum ratings note: absolute maximum ratings are dc values beyond which the device may be damaged or have its useful life im- paired. the datasheet specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/ input loading variables. pericom does not recommend operation outside datasheet specifications. l o b m y sr e t e m a r a p v c c ) v ( s n o i t i d n o c t a c 5 2 + = t a c 0 4 ? = c 5 8 + o t s t i n u . n i m. p y t. x a m. n i m. x a m v h i l e v e l h g i h e g a t l o v t u p n i 8 . 1 6 . 3 - 3 . 2 v 5 7 . 0 c c v 0 7 . 0 c c v 5 7 . 0 c c v 0 7 . 0 c c v v l i l e v e l w o l e g a t l o v t u p n i 8 . 1 6 . 3 - 3 . 2 v 5 2 . 0 c c v 0 3 . 0 c c v 5 2 . 0 c c v 0 3 . 0 c c v h o l e v e l h g i h e g a t l o v t u p t u o 8 . 1 3 . 2 0 . 3 v n i v = h i i h o a 0 0 1 ? = 7 . 1 2 . 2 9 . 2 9 7 . 1 9 2 . 2 9 9 . 2 7 . 1 2 . 2 9 . 2 3 . 2 0 . 3 0 . 3 i h o a m 8 ? = i h o a m 6 1 ? = i h o a m 4 2 ? = 9 . 1 4 . 2 3 . 2 3 1 . 2 1 7 . 2 5 5 . 2 9 . 1 4 . 2 3 . 2 v l o l e v e l w o l e g a t l o v t u p t u o 8 . 1 3 . 2 0 . 3 v n i v = l i i l o a 0 0 1 = 1 0 . 0 1 0 . 0 0 0 . 0 1 . 0 1 . 0 1 . 0 1 . 0 1 . 0 1 . 0 3 . 2 0 . 3 0 . 3 i l o a m 8 = i l o a m 6 1 = i l o a m 4 2 = 0 1 . 0 8 1 . 0 8 2 . 0 3 . 0 4 . 0 5 5 . 0 3 . 0 4 . 0 5 5 . 0 i n i e g a k a e l t u p n i t n e r r u c 6 . 3 - 0v = n i d n g , v 5 . 51 ?11 ?1 a i f f o f f o r e w o p t n e r r u c e g a k a e l 0 . 0v n i v r o t u o v 5 . 5 =1 ?11 ?1 i c c y l p p u s t n e c s e i u q t n e r r u c 6 . 3 - 8 . 1v n i d n g , v 5 . 5 =0 . 20 2 i z o t u p t u o e t a t s - 3 e g a k a e l 6 . 3 - 8 . 1 v n i v = h i v r o l i v o v = c c r od n g 1 0 1
3 ps8521a 02/12/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74st1g125 sotiny ? logic buffer with 3-state output ac electrical characteristics l o b m y sr e t e m a r a pv c c ) v (s n o i t i d n o c t a c 5 2 + = t a c 0 4 ? = c 5 8 + o t s t i n u. o n . g i f . n i m. p y t. x a m. n i m. x a m t h l p , t l h p n o i t a g a p o r p y a l e d 8 . 1 2 . 0 5 . 2 3 . 0 3 . 3 c l , f p 5 1 = r d m 1 = , w s 1 n e p o = 0 . 2 8 . 0 5 . 0 8 . 2 8 . 1 3 . 1 7 . 3 5 . 2 7 . 1 0 . 2 8 . 0 5 . 0 1 . 4 8 . 2 9 . 1 s n 1 3 t h l p , t l h p n o i t a g a p o r p y a l e d 3 . 0 3 . 3c l r , f p 0 5 = d =0 0 5 w s 1 n e p o = 5 . 16 . 24 . 35 . 17 . 31 3 t l z p , t h z p t u p t u o e m i t e l b a n e 8 . 1 2 . 0 5 . 2 3 . 0 3 . 3 c l r , f p 0 5 = d =0 0 5 w 0 0 5 = u r , s 1 t r o f d n g = h z p s 1 v = n i t r o f l z p v n i v x 2 = c c 2 5 . 1 5 . 1 8 . 5 1 . 4 1 . 3 5 . 7 4 . 5 1 . 4 2 5 . 1 5 . 1 3 . 8 9 . 5 5 . 4 1 3 t z l p , t z h p t u p t u o e m i t e l b a s i d 8 . 1 2 . 0 5 . 2 3 . 0 3 . 3 c l r , f p 0 5 = d =0 0 5 w 0 0 5 = u r , s 1 t r o f d n g = z h p s 1 v = n i t r o f z l p v n i v x 2 = c c 2 5 . 1 0 . 1 9 . 4 6 . 3 8 . 2 9 . 5 8 . 4 4 . 3 2 5 . 1 0 . 1 5 . 6 3 . 5 7 . 3 1 3 c , n i c t u o e c n a t i c a p a c t u p n i e c n a t i c a p a c t u p t u o v n i 0 = v t u o 0 = 4 8 f p c d p n o i t a p i s s i d r e w o p e c n a t i c a p a c 3 . 33 e t o n7 12 notes: 3. c pd is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (i ccd ) at no output loading and operating at 50% duty cycle (see figure 2). c pd is related to i ccd dynamic operating current by the expression: i ccd = (c pd )(v cc )(f in ) + (i cc static).
4 ps8521a 02/12/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74st1g125 sotiny ? logic buffer with 3-state output t pzl oe input gnd v oh v ol v cc gnd 50% 50% 50% 50% 50% 90% 90% 50% 50% 10% 10% 10% 10% 50% 90% 90% v ol v tri v tri t f = 3ns v cc t pzh t r = 3ns t plh t w t r = 3ns t r = 3ns t phl t phz t plz output output input output v oh v oh ?0.3v v oh +0.3v c l includes load and stray capacitance input prr = 1.0 mhz; t w = 500ns input oe input rd c l ru v in open gnd v cc output ac loading and waveforms figure 1. ac test circuit figure 2. i ccd test circuit figure 3. ac waveforms input = ac waveform; t r = t f = 1.8ns; prr = 10 mhz; duty cycle = 50% input output oe v cc a
5 ps8521a 02/12/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74st1g125 sotiny ? logic buffer with 3-state output .102 .118 bsc 0.60 12 3 .000 .005 0.00 0.15 .014 .019 0.35 0.50 54 1.50 1.75 .059 .068 0.10 .023 .004 1.45 max. seating plane .057 0o - 10o 1.90 .075 .037 bsc 2.60 3.00 0.95 .110 .118 2.80 3.00 x.xx x.xx datum "a" denotes dimensions in milimeters t r a pe g a k c a p - n i pe g n a r g n i t a r e p o x t 5 2 1 g 1 t s 4 7 i p3 2 t o s - n i p - 5 c o 5 8 o t c o 0 4 ? x c 5 2 1 g 1 t s 4 7 i p0 7 c s - n i p - 5 5-pin sot23 package (t) pericom semiconductor corporation 2380 bering drive ? san jose, ca 95131 ? 1-800-435-2336 ? fax (408) 435-1100 ? http://www.pericom.com ordering information 5-pin sc70 package (c)
|
