1 ps2091a 02/11/97 product description pericom semiconductor?s pi74lcx series of logic circuits are produced using the company?s advanced 0.6 micron cmos technology, achieving industry leading speed grades. the pi74lcx16501 is an 18-bit registered bus transceiver designed with d-type latches and flip-flops to allow data flow in transparent, latched, and clocked modes. the output enable (oeab and oeba, latch enable (leab and leba) and clock (clkab and clkba) inputs control the data flow in each direction. when leab is high, the device operates in transparent mode for a-to- b data flow. when leab is low, the a data is latched if clkab is held at a high or low logic level. the a bus data is stored in the latch/flip-flop on the low-to-high transition of clkab, if leab is low. oeab performs the output enable function on the b port. data flow from b port to a port is similar using oeba, leba and clkba. this high-speed, low-power device offers a flow-through organization for ease of board layout. the pi74lcx16501 can be driven from either 3.3v or 5.0v devices allowing this device to be used as a translator in a mixed 3.3v/5.0v system. 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74lcx16501 fast cmos 18-bit registered transceivers product features ? functionally compatible with fct3, lvt, and 74 series 16501 families of products ? tri-state outputs ? 5v tolerant inputs and outputs ? 2.0v-3.6v v cc supply operation ? balanced sink and source output drives (24 ma) ? low ground bounce outputs ? supports live insertion ? esd protection exceeds 2000v, human body model 200v, machine model ? packages available: ? 56-pin 240-mil wide plastic tssop (a) ? 56-pin 300-mil wide plastic ssop (v) logic block diagram leab clkab oeba leba clkba oeab d c d c a1 d c d c b1 to 17 other channels
2 ps2091a 02/11/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74lcx16501 18-bit registered transceivers 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) notes: 1. a-to-b data flow is shown. b-to-a data flow is similar but uses oeba, leba, and clkba. 2. output level before the indicated steady-state input conditions were established, provided that clkab was high before leab went low. 3. output level before the indicated steady-state input conditions were established. 4. h = high voltage level l = low voltage level z = high impedance - = low-to-high transition product pin configuration 56-pin v56 a56 oeab leab a0 gnd a1 a2 vcc a3 a4 a5 gnd a6 a7 a8 a9 a10 a11 gnd a12 a13 a14 vcc a15 a16 gnd a17 oeba leba gnd clkab b0 gnd b1 b2 vcc b3 b4 b5 gnd b6 b7 b8 b9 b10 b11 gnd b12 b13 b14 vcc b15 b16 gnd b17 clkba gnd pin name description oeab a-to-b output enable input oeba b-to-a output enable input (active low) leab a-to-b latch enable input leba b-to-a latch enable input clkab a-to-b clock input clkba b-to-a clock input ax a-to-b data inputs or b-to-a 3-state outputs bx b-to-a data inputs or a-to-b 3-state outputs gnd ground v cc power inputs outputs oeab leab clkab ax bx lxxx z hhxl l hhxh h hl - ll hl - hh hlhx b (2) hllx b (3)
3 ps2091a 02/11/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74lcx16501 18-bit registered transceivers maximum ratings (above which the useful life may be impaired. for user guidelines, not tested.) note: stresses greater than those listed under maximum ratings may cause permanent damage to the de- vice. this is a stress rating only and functional opera- tion 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. l o b m y sr e t e m a r a p. n i m. x a ms t i n u v cc e g a t l o v y l p p u sg n i t a r e p o0 . 26 . 3 v n o i t n e t e r a t a d5 . 16 . 3 v i e g a t l o v t u p n i05 . 5 v o e g a t l o v t u p t u oe t a t s w o l r o h g i h0v cc e t a t s - i r t05 . 5 i oh i / ol t n e r r u c t u p t u ov cc v 6 . 3 - v 0 . 3 = ? 4 2 a m v cc v 7 . 2 = ? 2 1 t a e r u t a r e p m e t g n i t a r e p o r i a - e e r f - 0 4 5 8 + c d / t d v e t a r e g d e t u p n iv , v 0 . 2 - v 8 . 0 = v cc v 0 . 3 =00 1v / s n recommended operating conditions storage temperature ............................................................. ?65c to +150c ambient temperature with power applied ............................ ?40c to +85c supply voltage to ground potential (inputs & vcc only) .... ?0.5v to +7.0v supply voltage to ground potential (outputs & d/o only) . ?0.5v to +7.0v dc input voltage .................................................................... ?0.5v to +7.0v dc output current ............................................................................... 120 ma power dissipation .................................................................................... 1.0w
pi74lcx16501 18-bit registered transceivers 4 ps2091a 02/11/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 notes: 1. for max. or min. conditions, use appropriate value specified under electrical characteristics for the applicable device type. 2. typical values are at v cc = 3.3v, +25c ambient. 3. per ttl driven input; all other inputs at v cc or gnd. 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 ) 1 ( . n i mp y t ) 2 ( . x a ms t i n u v ih e g a t l o v h g i h t u p n il e v e l h g i h c i g o l d e e t n a r a u g0 . 2 v v il e g a t l o v w o l t u p n il e v e l w o l c i g o l d e e t n a r a u g8 . 0 v oh e g a t l o v h g i h t u p t u ov cc 6 . 3 - 7 . 2 =i oh a m 1 . 0 C =v cc 2 . 0 - v cc 7 . 2 =i oh a m 2 1 C =2 . 2 v cc 0 . 3 =i oh a m 8 1 C =4 . 2 i oh a m 4 2 C =2 . 2 v ol e g a t l o v w o l t u p t u ov cc 6 . 3 - 7 . 2 =i ol a m 1 . 0 =2 . 0 v cc 7 . 2 =i ol a m 2 1 =4 . 0 v cc 0 . 3 =i ol a m 6 1 =4 . 0 i ol a m 4 2 =5 5 . 0 v ik e g a t l o v e d o i d p m a l cv cc , . n i m =i in a m 8 1 C = - 7 . 0 - 2 . 1 i i t n e r r u c e g a k a e l t u p n i0 v i v 5 . 56 . 3 - 7 . 2 = c c v5 a i oz e g a k a e l t u p t u o e t a t s - i r t0 v o v 5 . 5 v i v = ih v r o il v cc 6 . 3 - 7 . 2 =5 i off e l b a s i d n w o d r e w o pv cc , v 0 =v in v r o out v 5 . 50 1 i cc y l p p u s r e w o p t n e c s e i u q t n e r r u c v cc . x a m =v in d n g = v r o cc ? 1 . 00 1 d i cc y l p p u s r e w o p t n e c s e i u q t n e r r u c h g i h s t u p n i l t t v cc . x a m =v in v = cc v 6 . 0 C ) 3 ( ?? 0 0 5 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. p y ts t i n u c in e c n a t i c a p a c t u p n iv cc v , n e p o = i v r o v 0 = cc 7 f p c out e c n a t i c a p a c t u p t u ov cc v , v 3 . 3 = i v r o v 0 = cc 8 c pd e c n a t i c a p a c n o i t a p i s s i d r e w o pv cc v , v 3 . 3 = i v r o v 0 = cc ,z h m 0 1 = f0 2 capacitance dc electrical characteristics (over the operating range, t a = - 40c to +85c, v cc = 2.7v to 3.6v)
5 ps2091a 02/11/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74lcx16501 18-bit registered transceivers switching characteristics over operating range note: 1. skew between any two outputs, of the same package, switching in the same direction. dynamic switching characteristics (t a = +25c) note: 1. measured with n?1 outputs switching from high-to-low or low-to-high. the remaining output is measured in the low state. 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 ) 1 ( . p y ts t i n u v olp e g a t l o v k a e p w o l c i m a n y dv cc c , v 3 . 3 = l f p 0 5 = v ih v , v 3 . 3 = il v 0 = 8 . 0v v olv e g a t l o v y e l l a v w o l c i m a n y dv cc c , v 3 . 3 = l f p 0 5 = v ih v , v 3 . 3 = il v 0 = pericom semiconductor corporation 2380 bering drive ? san jose, ca 95131 ? 1-800-435-2336 ? fax (408) 435-1100 ? http://www.pericom.com 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 v cc v 3 . 0 v 3 . 3 =v cc v 7 . 2 = s t i n u . n i m. x a m. n i m. x a m x a m fy c n e u q e r f k c o l c m u m i x a mc l f p 0 5 = r l 0 0 5 = w 0 7 1 ??? z h m t phl t plh y a l e d n o i t a g a p o r p t s u bos u b 5 . 10 . 65 . 10 . 7 s n t phl t plh y a l e d n o i t a g a p o r p t k c o l cos u b 5 . 15 . 65 . 15 . 7 t phl t plh y a l e d n o i t a g a p o r p t e lo s u b 5 . 15 . 65 . 15 . 7 t pzl t pzh e m i t e l b a n e t u p t u o5 . 15 . 75 . 15 . 8 t plz t phz e m i t e l b a s i d t u p t u o5 . 10 . 65 . 10 . 7 t s e m i t p u t e s5 . 2 ? 5 . 2 ? t h e m i t d l o h5 . 1 ? 5 . 1 ? t w h t d i w e s l u p0 . 3 ? 0 . 3 ? t sk ( o )w e k s t u p t u o o t t u p t u o ) 1 ( ? 0 . 1 ??
|
