1 ps2096a 02/12/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74lcx16952 fast cmos 3.3v 16-bit 16-bit registered transceivers product features ? functionally compatible with fct3, lvt, and 74 series 16952 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 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 pi74lcx16952 is a 16-bit registered transceivers organized with two sets of eight d-type latches with separate input and output controls for each set. for data flow from a to b, for example, the a- to-b enable (xceab) input must be low in order to enter data from xax. the data present on the a port will be clocked on the b register when xclkab toggles from low-to-high. the xoeab control performs the output enable function on the b port. control of data from b to a is similar, but uses the xceab, xclkab, and xoeab inputs. by connecting the control pins of the two independent transceivers together, a full 16-bit operation can be achieved. the output buffers are designed with a power-off disable allowing "live insertion" of boards when used as backplane drivers. the pi74lcx16952 can be driven from either 3.3v or 5.0v devices allowing this device to be used as a translator in a mixed 3.3/5.0v system. d 1 clkab c 1 oeab 1 ceab 1 clkba 1 ceba 1 b 0 to 7 other channels d c 1 a 0 1 oeba d 2 clkab c 2 oeab 2 ceab 2 clkba 2 ceba 2 b 0 to 7 other channels d c 2 a 0 2 oeba
pi74lcx16952 3.3v 16-bit registered transceivers 2 ps2096a 02/12/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 product pin description truth table (1,2) product pin configuration 1 oeba 1 clkba 1 ceba gnd 1 b 0 1 b 1 v cc 1 b 2 1 b 3 1 b 4 gnd 1 b 5 1 b 6 1 b 7 2 b 0 2 b 1 2 b 2 gnd 2 b 3 2 b 4 2 b 5 v cc 2 b 6 2 b 7 gnd 2 ceba 2 clkba 2 oeba 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 56-pin v56 a56 1 oeab 1 clkab 1 ceab gnd 1 a 0 1 a 1 v cc 1 a 2 1 a 3 1 a 4 gnd 1 a 5 1 a 6 1 a 7 2 a 0 2 a 1 2 a 2 gnd 2 a 3 2 a 4 2 a 5 v cc 2 a 6 2 a 7 gnd 2 ceab 2 clkab 2 oeab notes: 1. h = high voltage level l = low voltage level x = don?t care or irrelevant - = low-to-high transition z = high impedance 2. a-to-b data flow shown. b-to-a flow control is the same, except using xceba, xclkba, and xoeba. 3. level of b before the indicated steady-state input conditions were established. e m a n n i p n o i t p i r c s e d o xb a e) w o l e v i t c a ( t u p n i e l b a n e t u p t u o b - o t - a x a b e o) w o l e v i t c a ( t u p n i e l b a n e t u p t u o a - o t - b x b a e c) w o l e v i t c a ( t u p n i e l b a n e k c o l c b - o t - a a b e c x) w o l e v i t c a ( t u p n i e l b a n e k c o l c a - o t - b x b a k l ct u p n i k c o l c b - o t - a x a b k l ct u p n i k c o l c a - o t - b x a x s t u p t u o e t a t s - 3 a - o t - b r o s t u p n i a t a d b - o t - a x b x s t u p t u o e t a t s - 3 a - o t - b r o s t u p n i a t a d a - o t - b d n gd n u o r g v cc r e w o p s t u p n is t u p t u o b a e c xb a k l c xb a e o xx a xx b x hx lx b ) 3 ( xl lx b ) 3 ( l - ll l l - lh h xxhx z - h g i h
3 ps2096a 02/12/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74lcx16952 3.3v 16-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 device. this is a stress rating only and functional operation of the device at these or any other condi- tions above those indicated in the operational sections of this specification is not implied. expo sure 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
pi74lcx16952 3.3v 16-bit registered transceivers 4 ps2096a 02/12/97 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 v r o d n g = 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 ps2096a 02/12/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74lcx16952 3.3v 16-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 t plh t phl y a l e d n o i t a g a p o r p x a x , x b x o t a b k l c x , b a k l c x c l f p 0 5 = r l 0 0 5 = w 0 . 23 . 60 . 26 . 7 s n t pzh t pzl e m i t e l b a n e t u p t u o x b x , x a x o t a b e o x , b a e o x 5 . 10 . 75 . 14 . 8 t phz t plz e m i t e l b a s i d t u p t u o x b x , x a x o t a b e o x , b a e o x 5 . 15 . 65 . 18 . 7 u s tw o l r o h g i h e m i t p u t e s b k l c x , b a k l c x o t x b x , x a x 5 . 2 ? 5 . 2 ? t h , w o l r o h g i h e m i t d l o h a b k l c x , b a k l c x o t x b x , x a x 0 . 2 ? 0 . 2 ? t su w o l r o h g i h e m i t p u t e s o t a b e c x , b a e c x a b k l c x , b a k l c x 0 . 3 ? 0 . 3 ? t h , w o l r o h g i h e m i t d l o h o t a b e c x , b a e c x a b k l c x , b a k l c x 0 . 2 ? 0 . 2 ? t w w o l r o h g i h h t d i w e s l u p a b k l c r o b a k l c x 0 . 3 ? 0 . 3 ? t sk ( o )w e k s t u p t u o ) 1 ( ? 0 . 1 ??
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