1 ps8307a 11/17/98 logic block diagram product features common features ? pi74fct16260 and pi74fct162260 are high-speed, low power devices with high current drive. ?v cc = 5v 10% ? typical tsk (o) (output skew) < 250ps, clocked mode ? extended range of ?40c to +85c ? hysteresis on all inputs pi74fct16260t features ? high output drive: i oh = ?32ma; i ol = 64ma ? power off disable outputs permit ?live insertion? ? typical v olp (output ground bounce) < 1.0v at v cc = 5v, t a = 25c pi74fct162260t features ? balanced output drive: i ol /i oh = 24ma ? typical v olp (output ground bounce) < 0.6v at v cc = 5v, t a = 25c ? series current limiting resistors ? packages available: ? 56-pin 240 mil wide tssop (a56) ? 56-pin 300 mil wide ssop (v56) product description pericom semiconductor?s pi74fct series of logic circuits are produced in the company?s advanced 0.6 micron cmos technology, achieving industry leading speed grades. the fct16260at/ct and the fct162260at/ct tri- port bus exchangers are high-speed 12-bit latched bus multiplexers/ transceivers for use in high speed microprocessor applications. these bus exchangers support memory interleaving with latched outputs on the b-ports and address multiplexing with latched inputs on the b- ports. the tri-port bus exchanger has three 12-bit ports. data may be transferred between the a-port and either/both of the b-ports. the latch enable (le1b, le2b, lea1b and lea2b) inputs control data storage. when a latch-enable input is high, the latch is transparent. when the latch enable input is low, the data at the input is latched and remains latched until the latch enable input is returned high. independent output enables (oe1b and oe2b allow reading from one port while writing to the other port. the fct16260at/ct are ideally suited for driving high capacitance loads and low impedance backplanes. the output buffers are designed with power off disable capability to allow ?live insertion? of boards when used as backplane drivers. the fct162260at/ct have balanced output drive with current limiting resistors. this offers low ground bounce, minimal undershoot, and controlled output fall times reducing the need for external series terminating resistors. 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74fct16260t pi74fct162260t fast cmos 12-bit tri-port bus exchanger
2 ps8307a 11/17/98 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74fct16260t pi74fct162260t fast cmos 12-bit tri-port bus exchanger truth table (1) a to b (oea = h) truth table (1) b to a (oeb = h) 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 configuration 56-pin a, v oea le1b 2b3 gnd 2b2 2b1 v cc a1 a2 a3 gnd a4 a5 a6 a7 a8 a9 gnd a10 a11 a12 v cc 1b1 1b2 gnd 1b3 le2b sel oe2b lea2b 2b4 gnd 2b5 2b6 v cc 2b7 2b8 2b9 gnd 2b10 2b11 2b12 1b12 1b11 1b10 gnd 1b9 1b8 1b7 v cc 1b6 1b5 gnd 1b4 lea1b oe1b e m a n n i pn o i t p i r c s e d b 2 e o) w o l e v i t c a ( e l b a n e t u p t u o b 2 b 1 e o) w o l e v i t c a ( e l b a n e t u p t u o b 1 b 1 e lb 1 - a , e l b a n e h c t a l b 2 e lb 1 2 a , e l b a n e h c t a l b 1 a e lh c t a l a - b 1 r o f t u p n i e l b a n e h c t a l b 2 a e lh c t a l a - b 2 r o f t u p n i e l b a n e h c t a l a e o) w o l e v i t c a ( a r o f e l b a n e t u p t u o l e sn o i t c e l e s h t a p b 2 r o b 1 1 as t u p t u o e t a t s 3 a - o t - b r o f s t u p n i a t a d b - o t - a 1 b 1b 1 t r o p a t a d l a n o i t c e r i d i b 1 b 2b 2 t r o p a t a d l a n o i t c e r i d i b d n gd n u o r g v c c r e w o p product pin description notes: 1. h = high signal level l = low signal level x = irrelevant z = high impedance 2. output level before the indicated steady-state input conditions were established. s t u p n is t u p t u o ab 1 a e lb 2 a e lb 1 e ob 2 e ob 1b 2 hh h l l h h lh h l l l l hh l l l h 0 b 2 ) 2 ( lh l l l l 0 b 2 ) 2 ( hl h l l 0 b 1 ) 2 ( h ll h l l 0 b 1 ) 2 ( l xl l l l 0 b 1 ) 2 ( 0 b 2 ) 2 ( xx x h h z z xx x l h e v i t c az xx x h l z e v i t c a xx x l l e v i t c ae v i t c a s t u p n i a t u p t u o b 1b 2l e sb 1 e lb 2 e la e o hxh h x l h lxhh x l l xxh l x l a ) 2 ( xhl x h l h xll x h l l xxl x l l a ) 2 ( xxx x x h z
3 ps8307a 11/17/98 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74fct16260t pi74fct162260t fast cmos 12-bit tri-port bus exchanger 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 indi- cated in the operational sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. dc electrical characteristics (over the operating range, t a = ?40c to +85c, v cc =5.0v 10%) maximum ratings (above which the useful life may be impaired. for user guidelines, not tested.) 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 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 m. p y t ) 2 ( . x a ms t i n u v h i 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 l i 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 i h i h g i h t u p n i t n e r r u c ) s n i p t u p n i ( v c c . x a m =v n i v = c c 1 - a m ) s n i p o / i (1 - i l i w o l t u p n i t n e r r u c ) s n i p t u p n i ( v c c . x a m =v n i . x a m = 1 - ) s n i p o / i (1 - i h z o e c n a e d e p m i h g i h t n e r r u c t u p t u o v c c . x a m = v t u o v 7 . 2 =1 - i l z o v t u o v 5 . 0 =1 - v k i e g a t l o v e d o i d p m a l cv c c i , . n i m = n i a m 8 1 - =7 . 0 -2 . 1 -v i s o ( t n e r r u c t i u c r i c t r o h so / i) s n i pv c c . x a m = ) 3 ( v , t u o d n g =0 8 -0 4 1 -0 5 2 -a m v h s i s e r e t s y h t u p n i0 0 1v m 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 m. p y t ) 2 ( . x a ms t i n u i o ) s n i p o / i ( t n e r r u c e v i r d t u p t u ov c c . x a m = ) 3 ( v 5 . 2 = t u o v ,0 5 -0 8 1 -a m v h o e g a t l o v h g i h t u p t u o v c c , . n i m = v n i v = h i v = h i v r o l i i h o a m 0 . 3 - =5 . 25 . 3 v i h o a m 0 . 5 1 - =4 . 25 . 3 i h o a m 0 . 2 3 - =0 . 20 . 3 v l o e g a t l o v w o l t u p t u ov c c v , . n i m = n i v = h i v = h i v r o l i i l o a m 4 6 =2 . 05 5 . 0 i f f o e g a k a e l f f o r e w o p t u p t u o / t u p n iv c c c v , v 0 = n i v r o t u o v 5 . 41 a m pi74fct16260t output drive characteristics (over the operating range) 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 m. p y t ) 2 ( . x a ms t i n u v h o e g a t l o v h g i h t u p t u ov c c v , . n i m = n i v = h i v r o l i i h o a m 0 . 4 2 - =4 . 23 . 3 v v l o e g a t l o v w o l t u p t u ov c c v , . n i m = n i v = h i v r o l i i l o a m 0 . 4 2 =3 . 05 5 . 0 i l d o t n e r r u c w o l t u p t u ov c c v , v 5 = n i v = h i v r o l i ,v t u o =v 5 . 1 ) 3 ( 0 65 1 10 0 2 a m i h d o t n e r r u c h g i h t u p t u ov c c v , v 5 = n i v = h i v r o l i ,v t u o =v 5 . 1 ) 3 ( 0 6 -5 1 1 -0 0 2 - pi74fct162260t output drive characteristics (over the operating range) notes: 1. for max. or min. conditions, use appropriate value specified under electrical characteristics for the applicable device type. 2. typical values are at vcc = 5.0v, +25oc ambient and maximum loading. 3. not more than one output should be shorted at one time. duration of the test should not exceed one second.
4 ps8307a 11/17/98 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74fct16260t pi74fct162260t fast cmos 12-bit tri-port bus exchanger notes: 1. for max. or min. conditions, use appropriate value specified under electrical characteristics for the applicable device. 2. typical values are at vcc = 5.0v, +25c ambient. 3. per ttl driven input (v in = 3.4v); all other inputs at vcc or gnd. 4. this parameter is not directly testable, but is derived for use in total power supply calculations. 5. values for these conditions are examples of the icc formula. these limits are guaranteed but not tested. 6. i c =i quiescent + i inputs + i dynamic i c = i cc + d i cc d h n t + i ccd (f cp /2 + fi n i ) i cc = quiescent current d i cc = power supply current for a ttl high input (v in = 3.4v) d h = duty cycle for ttl inputs high n t = number of ttl inputs at d h i ccd = dynamic current caused by an input transition pair (hlh or lhl) f cp = clock frequency for register devices (zero for non-register devices) f i = input frequency n i = number of inputs at f i all currents are in milliamps and all frequencies are in megahertz. power supply characteristics parameters description test conditions (1) min. typ. (2) max. units i ccl , i cch , quiescent power v cc = max. v in = gnd or v cc 5 500 a i ccz supply current di cc supply current per v cc = max. v in = 3.4v (3) 0.5 1.5 ma input @ ttl high i ccd supply current per v cc = max. v in = v cc 60 100 a/ input per mhz (4) outputs open v in = gnd mhz one output port enabled lexx = v cc one input bit toggling one output bit toggling 50% duty cycle i c total power supply v cc = max., v in = v cc 0.6 1.5 ma current (6) outputs open v in = gnd f i = 10mhz 50% duty cycle one output port enabled v in = 3.4v 0.9 2.3 lexx = v cc v in = gnd one input bit toggling one output bit toggling v cc = max., v in = v cc 1.8 3.5 (5) outputs open v in = gnd f i = 2.5mhz 50% duty cycle one output port enabled v in = 3.4v 4.8 12.5 (5) lexx = v cc v in = gnd twelve input bit toggling twelve output bit toggling
5 ps8307a 11/17/98 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74fct16260t pi74fct162260t fast cmos 12-bit tri-port bus exchanger notes: 1. see test circuit and waveforms. 2. minimum limits are guaranteed but not tested on propagation delays. 3. skew between any two outputs of the same package switching in the same direction. this parameter is guaranteed by design. 4. this parameter is guaranteed but not production tested. 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 t s e t. p y t. x a ms t i n u c n i e c n a t i c a p a c t u p n iv n i v 0 =5 . 30 . 6 f p c o / i c n a t i c a p a c o / iv t u o v 0 =5 . 30 . 8 capacitance (t a = 25oc, f = mhz) note: 1. this parameter is determined by device characterization but is not production tested. 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 ) 1 ( t a 0 6 2 2 6 1 / t a 0 6 2 6 1t c 0 6 2 2 6 1 / t c 0 6 2 6 1t e 0 6 2 2 6 1 / t e 0 6 2 6 1 s t i n u . m o c. m o c. m o c . n i m ) 2 ( . x a m ) 2 ( . n i m ) 2 ( . x a m ) 2 ( . n i m ) 2 ( . x a m ) 2 ( t h l p t l h p y a l e d n o i t a g a p o r p x b 2 o t x a r o x b 1 o t x a c l f p 0 5 = r l 0 0 5 = w 5 . 12 . 55 . 17 . 45 . 16 . 3 s n t h l p t l h p y a l e d n o i t a g a p o r p x a o t x b 2 r o x a o t x b 1 5 . 16 . 55 . 10 . 55 . 16 . 3 t h l p t l h p y a l e d n o i t a g a p o r p x a o t b x e l 5 . 12 . 55 . 17 . 45 . 10 . 4 t h l p t l h p y a l e d n o i t a g a p o r p o t b 2 a e l r o x b o t b 1 a e l x b 2 5 . 17 . 45 . 14 . 45 . 10 . 4 t h l p t l h p y a l e d n o i t a g a p o r p x a o t l e s 5 . 12 . 55 . 17 . 45 . 10 . 4 t h z p t l z p e m i t e l b a n e t u p t u o , x b 1 o t b 1 e o , x a o t a e o x b 2 o t b 2 e o r o 5 . 17 . 55 . 11 . 55 . 14 . 4 t z h p t z l p e m i t e l b a s i d t u p t u o , x b 1 o t b 1 e o , x a o t a e o x b 2 o t b 2 e o r o 5 . 14 . 45 . 10 . 45 . 10 . 4 t u s w o l r o h g i h , e m i t p u t e s h c t a l o t a t a d 5 . 10 . 10 . 1 t h a t a d o t h c t a l , e m i t d l o h0 . 10 . 10 . 1 t w h g i h h c t a l , h t d i w e s l u p ) 4 ( 0 . 30 . 30 . 3 t k s ) 0 ( w e k s t u p t u o ) 3 ( 5 . 05 . 05 . 0 switching characteristics over operating range (propogation delays)
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