ps8169a 11/09/98 1 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 PI3B16213 3.3v, 24-bit bus-exchange switch product description pericom semiconductors pi3b series of logic circuits are produced in the companys advanced 0.35 micron cmos technology. the PI3B16213 is a 3.3 volt, 24-bit bus-exchange switch designed with a low on resistance allowing connections to be made with minimal propagation delay. this device operates as a 24-bit or as a 12-bit bus switch, providing data exchange between the four signal ports via the data-select (s0-s2) terminals. product features ? near-zero propagation delay ?5 w switches connect inputs to outputs ? direct bus connection when switches are on ? fast switching speed - 5.5ns max. ? operating vcc range: 3.0v to 3.6v ? industrial operating temperature: C40c to +85c ? packages available: C 56-pin 240-mil wide thin plastic tssop (a) C 56-pin 300-mil wide plastic ssop (v) logic block diagram product pin configuration function s2 s1 s0 a1 a2 disconnect l llzz a1 to b1 l l h b1 z a1 to b2 l h l b2 z a2 to b1 l h h z b1 a2 to b2 h l l z b2 a1 to a2 and b2 h l h a2/b2 a1/b2 a1 to b1, a2 to b2 h h l b1 b2 a1 to b2, a2 to b1 h h h b2 b1 truth table product pin description pin name i/o description s0-s2 i select inputs xax i/o bus a xbx i/o bus b note: 1. h = high voltage level l = low voltage level z = high impedance 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 s0 1 a 1 1 a 2 2 a 1 2 a 2 3 a 1 3 a 2 gnd 4 a 1 4 a 2 5 a 1 5 a 2 6 a 1 6 a 2 7 a 1 7 a 2 v cc 8 a 1 gnd 8 a 2 9 a 1 9 a 2 10 a 1 10 a 2 11 a 1 11 a 2 12 a 1 12 a 2 s 1 s 2 1 b 1 1 b 2 2 b 1 2 b 2 3 b 1 gnd 3 b 2 4 b 1 4 b 2 5 b 1 5 b 2 6 b 1 6 b 2 7 b 1 7 b 2 8 b 1 gnd 8 b 2 9 b 1 9 b 2 10 b 1 10 b 2 11 b 1 11 b 2 12 b 1 12 b 2 56-pin a, v 1 of 12 channels flow control x b 1 x b 2 x a 1 x a 2 s0 s1 s2
2 ps8169a 11/09/98 PI3B16213 3.3v 24-bit bus-exchange switch 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 storage temperature .................................................. C65c to +150c ambient temperature with power applied ................. C40c to +85c supply voltage range ................................................. C0.5v to +4.60v dc input voltage ........................................................ C0.5v to +4.60v dc output current .................................................................... 120 ma power dissipation ............................................................................. 1 w 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. maximum ratings (above which the useful life may be impaired. for user guidelines, not tested.) notes: 1. typical values are at vcc = 3.3v, t a = 25c ambient and maximum loading. 2. this parameter is determined by device characterization but is not production tested. 3. 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. electrical characteristics (over the operating range, t a = C40c to +85c, v cc = 3.0v to 3.6v) 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 mp y t ) 1 ( . x a mt i n us v ik e g a t l o v h g i h t u p n iv cc . n i m =a m 8 1 - = i i2 . 1 -v i it n e r r u c t u p n i v cc 0 =. x a m = i v0 1 a v cc . x a m =d n g r o . x a m = i v1 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 0 = o i . x a m =viv = cc d n g r o0 1 c in ) 2 ( e c n a t i c a p a c t u p n iv 0 = n i v3 f p c off ) 2 ( e c n a t i c a p a c b / a , f f o h c t i w sd n g = 2 s , 1 s , 0 s ; v 0 = n i v4 1 r n o ) 3 ( b o t a. n i m = c c vv cc m =n i vi 0 = i= i0 3, a m58 w i= i4 6a m58 vi v 4 . 2 =i= i5 1a m0 15 1 2 a o t 1 a. n i m = c c vv cc m =n i vi 0 = i= i0 3, a m0 14 1 i= i4 6a m0 14 1 vi v 4 . 2 =i= i5 1a m0 20 3
3 ps8169a 11/09/98 PI3B16213 3.3v 24-bit bus-exchange switch 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 notes: 1. typical values are at vcc = 3.3v, +25c ambient. PI3B16213 switching characteristics over operating range note: 1. this parameter is guaranteed but not tested on propagation delays. the bus switch contributes no propagational delay other th an the rc delay of the on resistance of the switch and the load capacitance. the time constant for the switch alone is of the orde r of 0.25ns for 50pf load. since this time constant is much smaller than the rise/fall times of typical driving signals, it adds ver y little propagational delay to the system. propagational delay 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 with the load on the driven side. 2. see test circuit and waveforms. pericom semiconductor corporation 2380 bering drive ? san jose, ca 95131 ? 1-800-435-2336 ? fax (408) 435-1100 ? http://www.pericom.com recommended operating conditions s r e t e m a r a pn o i t p i r c s e d. n i mp y t ) 1 ( . x a ms t i n u v c c e g a t l o v y l p p u s0 . 3 ? 6 . 3 v v h i e g a t l o v t u p n i l e v e l - h g i h2 ?? v l i e g a t l o v t u p n i l e v e l - w o l ?? 8 . 0 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 s 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 6 . 3 o t v 0 . 3 = s t i n u n i mx a m t d p ) 2 , 1 ( b r o aa r o b5 2 . 0 s n 1 a2 a5 . 0 t n e ) 2 ( sb r o a15 . 4 t s i d ) 2 ( sb r o a15 . 5 t n e ) 2 ( 0 s2 a d n a 1 a15 . 4 t s i d ) 2 ( 0 s2 a d n a 1 a15 . 5
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