1 ps8153h 10/25/07 pi3c3125 pi3c3126 2.5v/3.3v, high bandwidth, hot insertion,4-bit, 2-port bus switch with individual enables features ? near-zero propagation delay ? 5-ohm switches connect inputs to outputs ? high bandwidth (>400 mhz) ? rail-to-rail, or 2.5v or 3.3v switching ? 5v i/o tolerant ? 2.5v supply voltage operation ? permits hot insertion ? packaging (pb-free & green available): ? 14-pin 150-mil wide plastic soic (w) ? 14-pin 170-mil wide plastic tssop (l) ? 16-pin 150-mil wide plastic qsop (q) ? 16-contact tfdn (zj) applications ? high bandwidth data switching ? hot docking description pericom semiconductor?s pi3c3125 and pi3c3126 are 2.5 volt or 3.3 volt, 4-bit bus switches designed with four individual 5-ohm bus switches with fast indiviual enables in an industry standard 74xx125/126 pinout. when enabled via the associated bus enable pin, the ?a? pin is directly connected to the ?b? pin for that particular gate. the bus switch introduces no additional propagation delay or additional ground bounce noise. the pi3c3125 device has active low enables, and the pi3c3126 has active high enables. it is very useful in switching signals that have high bandwidth (>400 mhz). pi3c3125 block diagram a 0 a 1 a 2 be 0 be 1 a 3 be 2 be 3 b 0 b 1 b 2 b 3 a 0 a 1 a 2 be 0 be 1 a 3 be 2 be 3 b 0 b 1 b 2 b 3 pi3c3126 block diagram 07-0240
2 pi3c3125/pi3c3126 2.5v/3.3v, high bandwidth, hot insertion,4-bit, 2-port bus switch with individual enables ps8153h 10/25/07 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 indicated in the operational sections of this speci cation 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.) 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 input voltage .................................................................... ?0.5v to +5.5v dc output current ............................................................................... 120ma power dissipation ................................................................................... 0.5w pi3c3125 14-pin con guration 1 2 3 4 5 6 7 14 13 12 11 10 9 8 vcc be3 a3 b3 be2 a2 b2 be0 a0 b0 be1 a1 b1 gnd 14-pin w14 l14 pi3c3126 16-pin con guration pi3c3125 16-pin con guration pi3c3126 14-pin con guration 1 2 3 4 5 6 7 14 13 12 11 10 9 8 vcc be3 a3 b3 be2 a2 b2 be0 a0 b0 be1 a1 b1 gnd 14-pin w14 l14 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 vcc be3 a3 b3 be2 a2 b2 nc nc be0 a0 b0 be1 a1 b1 gnd 16-pin q16 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 vcc be3 a3 b3 be2 a2 b2 nc nc be0 a0 b0 be1 a1 b1 gnd 16-pin q16 pin description pin name description ben switch enable (pi3c3125) ben switch enable (pi3c3126) a3 - a0 bus a b3 - b0 bus b v cc power gnd ground truth table (1) pi3c3125 ben pi3c3126 ben an bn v cc function x* x hi-z hi-z gnd disconnect h l hi-z hi-z v cc disconnect l h bn an v cc disconnect note: 1. h = high voltage level, l = low voltage level hi-z = high impedance, x = don?t care * a pull-up resistor should be provided for power-up protection. 07-0240
3 pi3c3125/pi3c3126 2.5v/3.3v, high bandwidth, hot insertion,4-bit, 2-port bus switch with individual enables ps8153h 10/25/07 dc electrical characteristics (over operating range, t a = ?40c to +85c, v cc = 3.3v 10%) parameters description test conditions(1) min. typ.(2) max units v ih input high voltage guearanteed logic high level 2.0 v v il input low voltage guaranteed logic low level ?0.5 0.8 i ih input high current v cc = max., v in = v cc 1 a i il input low current v cc = max., v in = gnd 1 a i ozh (3) high impedance output current 0 a, b v cc 1 v ik clamp diode volt- age v cc = min., i in = ?18ma ?0.73 ?1.2 v r on switch on resis- tance (4) v cc = min., v in = 0.0v, i on = 48ma or 60ma v cc = min., v in = 2.4v, i on = 15ma 5 8 7 15 notes: 1. for max. or min. conditions, use appropriate value speci ed 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. capacitance (t a = 25c, f = 1 mhz) parameters (1) description test conditions typ. units c in input capacitance v in = 0v 3.5 pf c off a/b capacitance, switch off v in = 0v 5.0 c on a/b capacitance, switch on v in = 0v 10.0 notes: 1. this parameter is determined by device characterization but is not production tested. power supply characteristics parameters description test conditions min. typ. (2) max. units i cc quiescent power supply current v cc = max v in = gnd or v cc 260 500 a ?i cc supply current per input high v cc = max v in = 3.0v (3) 750 notes: 1. for max. or min. conditions, use appropriate value speci ed under electrical characteristics for the applicable device. 2. typical values are at v cc = 3.3v, +25c ambient. 3. per driven input (control input only); a and b pins do not contribute to i cc . 07-0240
4 pi3c3125/pi3c3126 2.5v/3.3v, high bandwidth, hot insertion,4-bit, 2-port bus switch with individual enables ps8153h 10/25/07 pi3c3125/pi3c3126 switching characteristics over 3.3v operating range parameters description conditions pi3c3125/pi3c3126 units com. min. max. t plh t phl propogation delay (1,2) a to b, b to a c l =50pf r l = 500 0.25 ns t pzh t pzl bus enable time c l =50pf r l = 500 r = 500 1.5 6.5 t phz t plz bus disable time 1.5 5.5 notes: 1. this parameter is guaranteed but not tested on propagation delays. 2. 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 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. pi3c3125/pi3c3126 switching characteristics over 2.5v operating range parameters description conditions pi3c3125/pi3c3126 units com. min. max. t plh t phl propogation delay (1,2) a to b, b to a c l =50pf r l = 500 0.25 ns t pzh t pzl bus enable time c l =50pf r l = 500 r = 500 1.5 9.8 t phz t plz bus disable time 1.5 8.3 notes: 1. this parameter is guaranteed but not tested on propagation delays. 2. the bus switch contributes no propagational delay other than the rc delay of the on resistance of the switch and the load ca pacitance. the time constant for the switch alone is of the order of 0.25ns for 50pf load. since this time constant is much smaller than t he rise/fall times of typical driving signals, it adds very 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. 07-0240
5 pi3c3125/pi3c3126 2.5v/3.3v, high bandwidth, hot insertion,4-bit, 2-port bus switch with individual enables ps8153h 10/25/07 packaging mechanical: 14-pin 150-mil wide plastic soic (w) 3 % ! 4 ) . ' 0 , ! . % " 3 # x ?
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$ ! " pericom semiconductor corporation 3545 n. 1st street, san jose, ca 95134 1-800-435-2335 ? www.pericom.com 4.0 2.0 0.0 0.0 1.0 2.0 3.0 4.0 5.0 v tuo ) v cc v 3.1v 2.9v 2.7v 2.5v 2.3v 3.6v 3.8v 3.4v 3.2v 3.0v 2.8v output vo ltage vs. input voltage over various supply voltages v in (v) 07-0240
6 pi3c3125/pi3c3126 2.5v/3.3v, high bandwidth, hot insertion,4-bit, 2-port bus switch with individual enables ps8153h 10/25/07 packaging mechanical: 14-pin 173-mil wide plastic tssop (l) $ % 3 # 2 ) 0 4 ) / .
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2 % 6 ) 3 ) / . # $ ! 4 % . o t e 1. package outline exclusive of mold flash and metal burr 2. controlling dimentions in millimeters 3. ref: jedec mo-153f/ab-1 pericom semiconductor corporation 3545 n. 1st street, san jose, ca 95134 1-800-435-2335 ? www.pericom.com 3 % ! 4 ) . ' 0 , ! . % t y p i c a l m a x packaging mechanical: 16-pin 150-mil wide plastic qsop (q) 3 % ! 4 ) . ' 0 , ! . % " 3 # 8 8 8 8 8 8 $ % . / 4 % 3 $ ) - % . 3 ) / . 3 ) . - ) , , ) - % 4 % 2 3 x o 2 % & $ e t a i l ! $ e t a i l ! - ) . ' u a g e 0 l a n e 2 % & ?
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" ! " pericom semiconductor corporation 3545 n. 1st street, san jose, ca 95134 1-800-435-2335 ? www.pericom.com 07-0240
7 pi3c3125/pi3c3126 2.5v/3.3v, high bandwidth, hot insertion,4-bit, 2-port bus switch with individual enables ps8153h 10/25/07 description: 16-contact, thin dual-in-line flat no-lead (tdfn) package code: zj (zj16) document control #: pd-2042 revision: b . o t e s ! l l d i m e n s i o n s a r e i n m i l l i m e t e r s 2 e f * % $ % # - /
2 e f " i l a t e r a l c o p l a n a r i t y z o n e a p p l i e s t o t h e e x p o s e d h e a t s i n k s l u g a s w e l l a s t h e t e r m i n a l s date: 03/30/06
packaging mechanical: 16-pin 150-mil wide plastic qsop (q) pericom semiconductor corporation ? 1-800-435-2336 ? www.pericom.com ordering information ordering code packaging code package type top mark PI3C3125L l 14-pin tssop PI3C3125Le l pb-free & green, 14-pin tssop pi3c3125w w 14-pin soic pi3c3125we w pb-free & green, 14-pin soic pi3c3125q q 16-pin qsop pi3c3125qe q pb-free & green, 16-pin qsop pi3c3125zje zj pb-free & green, 16-pin tdfn ta pi3c3126l l 14-pin tssop pi3c3126le l pb-free & green, 14-pin tssop pi3c3126w w 14-pin soic pi3c3126we w pb-free & green, 14-pin soic pi3c3126q q 16-pin qsop pi3c3126qe q pb-free & green, 16-pin qsop notes: ? thermal characteristics can be found on the company web site at www.pericom.com/packaging/ ? e = pb-free & green ? adding an x suf x = tape/reel 07-0240
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