1 ps8169a 07/30/98 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74alvch16835 18-bit universal bus driver with 3-state outputs logic block diagram product description pericom semiconductor?s pi74alvch series of logic circuits are produced using the company?s advanced 0.5 micron cmos technology, achieving industry leading speed. the 18-bit pi74alvch16835 universal bus driver is designed for 2.3v to 3.6v vcc operation. data flow from a to y is controlled by output enable (oe). the device operates in the transparent mode when le is high. the a data is latched if clk is held at a high or low logic level. if le is low, the a-bus is stored in the latch/flip-flop on the low-to-high transition of clk. when oe is high, the outputs are in the high- impedance state. to ensure the high-impedance state during power up or power down, oe should be tied to vcc through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. to 17 other channels clk le a1 54 28 30 oe 27 1d c1 clk y1 3 product features pi74alvch16835 is designed for low voltage operation v cc = 2.3v to 3.6v hysteresis on all inputs typical v olp (output ground bounce) < 0.8v at v cc = 3.3v, t a = 25c typical v ohv (output v oh undershoot) < 2.0v at v cc = 3.3v, t a = 25c bus hold retains last active bus state during 3-state, eliminating the need for external pullup resistors industrial operation at ?40c to +85c packages available: ? 56-pin 240 mil wide plastic tssop (a) ? 56-pin 300 mil wide plastic ssop (v) ? 56-pin 173 mil wide plastic tvsop (k)
2 ps8169a 07/30/98 pi74alvch16835 18-bit universal bus driver with 3-state outputs 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pin name description oe output enable input (active low) le latch enable clk clock input a data input y data output gnd ground v cc power 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 25 26 27 28 32 31 30 29 product pin description truth table (1) ? note: 1. h = high signal level l = low signal level z = high impedance - = transition low-to-high x= irrelevant 2. output level before the indicated steady-state input conditions were established, provided that clk is high before le goes low. 3. output level before the indicated steady-state input conditions were established. product pin configuration 56-pin a, v nc nc y1 gnd y2 y3 v cc y4 y5 y6 gnd y7 y8 y9 y10 y11 y12 gnd y13 y14 y15 v cc y16 y17 gnd y18 oe le gnd nc a1 gnd a2 a3 v cc a4 a5 a6 gnd a7 a8 a9 a10 a11 a12 gnd a13 a14 a15 vcc a16 a17 gnd a18 clk gnd s t u p n i s t u p t u o y e oe lk l ca hxxxz lhxll lhxhh ll - ll ll - hh llhxo y ) 2 ( lllxo y ) 3 (
pi74alvch16835 18-bit universal bus driver with 3-state outputs 3 ps8169a 07/30/98 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 note: 1. unused control inputs must be held high or low to prevent them from floating. recommended operating conditions (1) s r e t e m a r a pn o i t p i r c s e ds n o i t i d n o c t s e t. n i m. p y t. x a ms t i n u v c c e g a t l o v y l p p u s3 . 26 . 3 v v h i e g a t l o v h g i h t u p n i v c c v 7 . 2 o t v 3 . 2 =7 . 1 v c c v 6 . 3 o t v 7 . 2 =0 . 2 v l i e g a t l o v w o l t u p n i v c c v 7 . 2 o t v 3 . 2 =7 . 0 v c c v 6 . 3 o t v 7 . 2 =8 . 0 v n i e g a t l o v t u p n i0v c c v t u o e g a t l o v t u p t u o0v c c i h o t n e r r u c t u p t u o l e v e l - h g i h v c c v 3 . 2 =2 1 - a m v c c v 7 . 2 =2 1 - v c c v 0 . 3 =4 2 - i l o t n e r r u c t u p t u o l e v e l - w o l v c c v 3 . 2 =2 1 v c c v 7 . 2 =2 1 v c c v 0 . 3 =4 2 t a e r u t a r e p m e t r i a - e e r f g n i t a r e p o0 4 -5 8c storage temperature ............................................................ ?65c to +150c ambient temperature with power applied .......................... ?40c to +85c input voltage range, v in .................................................... ?0.5v to v cc +0.5v output voltage range, v out ............................................. ?0.5v to v cc +0.5v dc input voltage ................................................................... ?0.5v to +5.0v dc output current .............................................................................. 100 ma power dissipation ................................................................................... 1.0w note: stresses greater than those listed under maximum ratings may cause permanent damage to the device. this is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. maximum ratings (above which the useful life may be impaired. for user guidelines, not tested.)
4 ps8169a 07/30/98 pi74alvch16835 18-bit universal bus driver with 3-state outputs 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 dc electrical characteristics (over the operating range, t a = C40c to +85c, v cc = 3.3v 10%) notes: 1. for max. or min. conditions, use appropriate value specified under electrical characteristics for the applicable device typ e. 2. typical values are at v cc = 3.3v, +25c ambient and maximum loading. 3. bus hold maximum dynamic current required to switch the input from one state to another. 4. for i/o ports, the i oz includes the input leakage current. s r e t e m a r a ps n o i t i d n o c t s e tv c c ) 1 ( . n i m. p y t ) 2 ( . x a ms t i n u v h o i h o 0 0 1 - = m a. x a m o t . n i mv c c -2 . 0 v i h o a m 6 - =v h i =v 7 . 1v 3 . 20 . 2 i h o 2 1 - =ma v h i =v 7 . 1v 3 . 27 . 1 v h i =v 0 . 27 . 2v 2 . 2 v h i =v 0 . 2v 0 . 34 . 2 i h o a m 4 2 - =v h i v 0 . 2 =v 0 . 30 . 2 v l o i l o 0 0 1 = m a. x a m o t . n i m2 . 0 i l o =a m 6v l i =v 7 . 0v 3 . 24 . 0 i l o a m 2 1 = v l i =v 7 . 0v 3 . 27 . 0 v l i =v 8 . 0v 7 . 24 . 0 i l o =a m 4 2v l i =v 8 . 0v 0 . 35 5 . 0 i i v i =v c c d n g r ov 6 . 35 m a i i ) d l o h ( ) 3 ( v i =v 7 . 0 v 3 . 2 5 4 v i =v 7 . 15 4 - v i =v 8 . 0 v 0 . 3 5 7 v i =v 0 . 25 7 - v i =v 6 . 3 o t 0v 6 . 30 0 5 i z o ) 4 ( v o =v c c d n g r ov 6 . 30 1 i c c v i =v c c d n g r oi o 0 =v 6 . 30 4 d i c c v t a t u p n i e n o c c v t a s t u p n i r e h t o , v 6 . 0 - c c d n g r ov 6 . 3 o t v 30 5 7 c i s t u p n i l o r t n o cv i =v c c d n g r ov 3 . 35 . 3 f p t u p n i a t a dv o =v c c d n g r ov 3 . 36 c o s t u p t u ov o =v c c d n g r ov 3 . 37
pi74alvch16835 18-bit universal bus driver with 3-state outputs 5 ps8169a 07/30/98 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 switching characteristics over operating range (1) pericom semiconductor corporation 2380 bering drive ? san jose, ca 95131 ? 1-800-435-2336 ? fax (408) 435-1100 ? http://www.pericom.com notes: 1. see test circuit and waveforms. 2. minimum limits are guaranteed but not tested on propagation delays. switching characteristics, from 0oc to 65oc, c l = 50pf r e t e m a r a p) t u p n i ( m o r f) t u p t u o ( o t v c c v 5 1 . 0 v 3 . 3 = s t i n u . n i m. x a m t d p k l cy7 . 15 . 4s n timing requirements over operating range note: 1. unused control inputs must be held high or low to prevent them from floating. s r e t e m a r a pn o i t p i r c s e d v c c v 2 . 0 v 5 . 2 =v c c v 7 . 2 =v c c v 3 . 0 v 3 . 3 = s t i n u . n i m. x a m. n i m. x a m. n i m. x a m f k c o l c y c n e u q e r f k c o l c00 5 100 5 100 5 1z h m t w e s l u p n o i t a r u d h g i h e l3 . 33 . 33 . 3 s n w o l r o h g i h k l c3 . 33 . 33 . 3 t u s e m i t p u t e s k l c e r o f e b a t a d - 2 . 21 . 27 . 1 e l e r o f e b a t a d , h g i h k l c9 . 16 . 15 . 1 e l e r o f e b a t a d , w o l k l c3 . 11 . 11 t h e m i t d l o h k l c r e t f a a t a d - 6 . 06 . 07 . 0 e l r e t f a a t a d , w o l r o h g i h k l c4 . 17 . 14 . 1 d / t d v ) 1 ( l l a f r o e s i r n o i t i s n a r t t u p n i00 100 100 1v / s n operating characteristics, t a = 25 o c r e t e m a r a ps n o i t i d n o c t s e t v c c v 2 . 0 v 5 . 2 =v c c v 3 . 0 v 3 . 3 = s t i n u l a c i p y t 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 d e l b a n e s t u p t u o c l , f p 0 5 = z h m 0 1 = f 6 21 3 f p d e l b a s i d s t u p t u o2 14 1 s r e t e m a r a p m o r f ) t u p n i ( ) t u p t u o ( o t v c c v 2 . 0 v 5 . 2 =v c c v 7 . 2 =v c c v 3 . 0 v 3 . 3 = s t i n u . n i m ) 2 ( . x a m. n i m ) 2 ( . x a m. n i m ) 2 ( . x a m f x a m 0 5 10 5 10 5 1z h m t d p ay12 . 42 . 416 . 3 s n t d p e ly3 . 15 9 . 43 . 12 . 4 t d p k l cy4 . 15 . 52 . 54 . 15 . 4 t n e e oy4 . 15 . 56 . 51 . 16 . 4 t s i d e oy15 . 43 . 43 . 19 . 3
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