1 ps8452c 03/13/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 truth table (1) note: 1. h = high voltage level l = low voltage level hi-z = high impedance pin name description 1 oe, 2 oe bus enable inputs (active low) 1 a 1 - 1 a 10 , 2 a 1 - 2 a 10 bus a 1 b 1 - 1 b 10 , 2 b 1 - 2 b 10 bus b product pin description product pin configuration PI3C16210 3.3v, high bandwidths 20-bit, 2-port bus switch product features ? near-zero propagation delay ? 5-ohm switch connects inputs to outputs ? direct bus connection when switch is on ? 32x384 function with flow through pinout makes board layout easier ? ultra-low quiescent power (0.2ma typical) ? ideally suited for notebook applications ? industrial operating temperature: ?40c to +85c ? packages available: ? 48-pin 173-mil wide plastic tvsop (k) ? 48-pin 240-mil wide plastic tssop (a) product description pericom semiconductor?s pi3c series of bus switch circuits are produced using the company?s advanced submicron cmos technology, achieving industry leading speed. the PI3C16210 is configured as a 20-bit, 2-port bus switch designed with a low on resistance (5 ohm) allowing inputs to be connected directly to outputs. the bus switch creates no additional propagational delay or additional ground bounce noise. the switch is turned on by the bus enable (xoe) input signal. logic block diagram s t u p n is t u p t u o / s t u p n i 1 e o 2 e o 1 , a 1 b 2 , a 2 b ll 1 = a 1 b 2 = a 2 b lh 1 = a 1 bz hl z 2 = a 2 b hh z z 1 oe 1 a 10 1 a 1 1 b 10 1 b 1 2 oe 2 a 10 2 a 1 2 b 10 2 b 1 nc 1 a 1 1 a 2 1 a 3 1 a 4 1 a 5 1 a 6 gnd 1 a 7 1 a 8 1 a 9 1 a 10 2 a 1 2 a 2 v cc 2 a 3 gnd 2 a 4 2 a 5 2 a 6 2 a 7 2 a 8 2 a 9 2 a 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 oe 2 oe 1 b 1 1 b 2 1 b 3 1 b 4 1 b 5 gnd 1 b 6 1 b 7 1 b 8 1 b 9 1 b 10 2 b 1 2 b 2 2 b 3 gnd 2 b 4 2 b 5 2 b 6 2 b 7 2 b 8 2 b 9 2 b 10 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 48-pin a, k
2 ps8452c 03/13/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 PI3C16210 3.3v, high bandwidth , 20-bit, 2-port bus switch storage temperature............................................................. ?65c to +150c ambient temperature with power applied .............................. ?40c to +85c supply voltage to ground potential (inputs & v cc only) ........ ?0.5v to +4.6v supply voltage to ground potential (outputs & d/o only) ...... ?0.5v to +4.6v dc i/o voltage ........................................................................... ?0.5v to +5.5v dc output current ................................................................................. 120ma power dissipation .................................................................................... 0.5w 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 sec- tions of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. 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, t a = 25c 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. measured by the voltage drop between a and b pin at indicated current through the switch. on resistance is determined by the lower of the voltages on the two (a,b) pins. 5. this parameter is determined by device characterization but is not production tested. maximum ratings (above which the useful life may be impaired. for user guidelines, not tested.) dc electrical characteristics (over the operating range, t a = ?40c to +85c, v cc = 3.3v 10%) capacitance (t a = 25c f = 1 mhz) 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 g5 . 0 ??8 . 0 i h i t n e r r u c h g i h t u p n iv c c v , . x a m = n i v = c c ?? 1 a i l i t n e r r u c w o l t u p n iv c c v , . x a m = n i= d n g??1 i z o ) 3 ( t u p t u o e c n e d e p m i - h g i h t n e r r u c 0 b , a v c c ?? 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 ? =?3 7 . 0 ?2 . 1 ?v r n o e c n a t s i s e r n o h c t i w s ) 4 ( v c c v , . n i m = n i v 0 . 0 = i n o a m 4 6 r o a m 8 4 = ?5 . 65 . 8 w v c c v , . n i m = n i v 4 . 2 = i n o a m 5 1 = ?0 15 1 s r e t e m a r a p ) 5 ( n 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 n i e c n a t i c a p a c t u p n i v n i v 0 = 5 . 3 f p c f f o f f o h c t i w s , e c n a t i c a p a c b / a0 . 4 c n o n o h c t i w s , e c n a t i c a p a c b / a0 . 8
3 ps8452c 03/13/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 PI3C16210 3.3v, high bandwidth , 20-bit, 2-port bus switch 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 ( . m o c s t i n u . n i m. x a m t h l p t l h p y a l e d n o i t a g o p o r p ) 3 , 2 ( x a o t x b , x b o t x a c l f p 0 5 = r l 0 0 5 = w ?5 2 . 0 s n t h z p t l z p e m i t e l b a n e s u b x b r o x a o t x e b c l f p 0 5 = r l 0 0 5 = w 0 0 5 = r w 5 . 15 . 6 t z h p t z l p e m i t e l b a s i d s u b x b r o x a o t x e b 5 . 15 . 5 PI3C16210 switching characteristics over operating range notes: 1. for max. or min. conditions, use appropriate value specified under electrical characteristics for the applicable device. 2. typical values are at v cc = 3.3v, +25c ambient. 3. per ttl driven input (control inputs only); a and b pins do not contribute to i cc . power supply characteristics notes: 1. see test circuit and waveforms. 2. this parameter is guaranteed but not tested on propagation delays. 3. the bus switch contributes no propagational delay other than the rc delay of the on resistance of the switch and the load capacitance. the time constant for the switch alone is of the order of 0.25ns for 50pf load. since this time constant is much s maller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. propagational dela y of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction wit h the load on the driven side. 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 ) 1 ( . n i m. p y t ) 2 ( . x a ms t i n u i c c t n e r r u c y l p p u s r e w o p t n e c s e i u q v c c , . x a m = v n i v r o d n g = c c ?0 6 20 5 8 a d i c c h g i h l t t @ t u p n i r e p t n e r r u c y l p p u s v c c , . x a m = v n i= v 0 . 3 ) 3 ( ?? 0 5 7
4 ps8452c 03/13/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 PI3C16210 3.3v, high bandwidth , 20-bit, 2-port bus switch pericom semiconductor corporation 2380 bering drive ? san jose, ca 95131 ? 1-800-435-2336 ? fax (408) 435-1100 ? http://www.pericom.com ordering information 48-pin tvsop (k) package t r a pe g a k c a p - n i ph t d i we r u t a r e p m e t a 0 1 2 6 1 c 3 i p) a ( p o s s t - 8 4l i m - 0 4 2 c 5 8 o t c 0 k 0 1 2 6 1 c 3 i p) k ( p o s v t - 8 4l i m - 3 7 1 48-pin tssop (a) package .378 .386 .047 .031 .041 seating plane .0051 .009 .016 bsc 1 48 .169 .177 9.60 9.80 4.30 4.50 0.40 0.13 0.23 0.80 1.05 x.xx x.xx denotes dimensions in millimeters .002 .006 0.05 0.15 .0035 .008 0.09 0.20 .018 .030 0.45 0.75 .252 bsc 6.4 max. 1.20 .236 .244 .488 .496 .002 .006 seating plane .007 .010 .0197 bsc .004 .008 .319 1 48 12.4 12.6 6.0 6.2 0.50 0.17 0.27 8.1 0.05 0.15 0.09 0.20 x.xx x.xx denotes dimensions in millimeters .018 .030 0.45 0.75 .047 1.20 max bsc
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