||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 8 - bit bus switch, 2 - enable low 1.8v/2.5v/3.3v , high - bandwidth switch , hot plug 2 0 1 5 - 0 7 - 0 0 1 2 pt0 467 - 3 0 8 / 0 5 /1 5 1 p i3ch 3244 features ? near - zero propagation delay ? 5 - ohm switches connect inputs to outputs ? high signal passing bandwidth (500 mhz) ? beyond rail - to - rail switching - 0 to 5v switching with 3.3v power supply - 0 to 3.3v switching with 2.5v power supply ? 5v i/o tolerant with su pply in off and on state ? 1.8v, 2.5v and 3.3v supply voltage operation ? hot insertion capable ? industrial operating temperature: - 40oc to +85oc ? 8 kv esd protection (human body model) ? latch - up performance: >2 0 0ma per jesd17 ? packaging (pb - free & green available) : - 20 - pin 1 73 - mil wide plastic ts sop ( l ) - 20 - pin t qfn (zh) pin configuration block diagram description the pi3ch 3244 is a low - voltage, 8 - cha nnel switch designed with fast enable s . the switch creates no additional ground bounce noise or propagatio n delay. the pi3ch 3244 device has two active low enables . it is very useful in switching signals that have high bandwidth (500 mhz). applications ? high bandwidth data switching ? hot - docking ? analog signal switching ? differential signal switching pin descript ion pin no pin name description 1, 19 1111111 en x switch enable 2, 4, 6, 8 1 a 1 - 1 a 4 a ports 3, 5, 7, 9 2b1 - 2b4 b ports 10 gnd ground 12, 14, 16, 18 1b4 - 1b1 b ports 13, 15, 17, 19 2a4 - 2a1 a ports 20 v cc power t ruth t able (1) note: 1. h=high voltage level ; l=low voltage level hi - z= high impedance. 1b1 - 1b4 2b1 - 2b4 en1 en 2 function hi - z hi - z h h disconnect 1 a 1 - 1 a 4 hi - z l h c onnect hi - z 2 a 1 - 2 a 4 h l connect 1 a 1 - 1 a 4 2 a 1 - 2 a 4 l l c onnect tssop t qfn
|||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 0 7 - 0 0 1 2 pt0 467 - 3 0 8 / 0 5 /1 5 2 pi3ch 3244 8 - bit bus switch, 2 - enable low 1.8v/2.5v/3.3v, high - bandwidth switch, hot plug maximum ratings storage temperature ................................ ................................ ................... - 65 o c to +1 50 o c am bient temperature with power applied ................................ ........ C 40c to +85c supply voltage to ground potential ................................ ............................ - 0.5v to + 4.6 v dc input voltage ................................ ................................ ............................ - 0.5v to + 6.0 v dc output current ................................ ................................ .......................... 1 20 ma power dissipation ................................ ................................ ................................ .............. 0.5 w d c electrical characteristics 3.3v supply ( over operating range, t a = - 4 0 ~ + 85oc, v cc =3.3v10%, unless otherwise noted) symbol description test conditions (1) min typ (2) max unit v ih control input high v oltage guaranteed logic high level 2.0 - - v v il control input low v oltage guaranteed logic low level - 0.5 - 0.8 v v ik c lamp diode v oltage v cc = min., i in = - 18ma - - 1.3 - 1.8 v i ih input high current v cc = max., v in = v cc - - 1 a il input low current v cc = max., v in = gnd - - 1 a ozh high - impedance current 0 cc - - 1 a on switch on - resistance (3 ) v cc = min., v in = 0.0v i on = - 48ma or - 64ma - 4 6 ? cc = min., v in = 3.6v i on = - 15ma - 5 8 notes: 1. for max. or min. conditions, use appropriate value specified under electrical characteristics for the applicable device type . 2. t ypical values are at v cc = 3 .3 v , ta = 25c ambient and maximum loading . 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 . 2.5v supply ( over operating range, t a = - 4 0 ~ + 85oc, v cc =2.5v10%, unless otherwise noted) symbol description test conditions (1) min typ (2) max unit v ih control input high v oltage guaranteed logic high level 1.8 - v cc +0.3 v v il control input low v oltage guaranteed logic low level - 0.3 - 0.8 v v ik clamp diode v oltage v cc = max. , i in = - 6ma - - 0.7 - 1.8 v i ih input high current v cc = max., v in = v cc - - 1 a il input low current v cc = max., v in = gnd - - 1 a ozh high - impedance current 0 cc - - 1 a on switch on - resistance (3 ) v cc = min., v in = 0.0v i on = - 48ma - 4 8 ? cc = min., v in = 2.25v i on = - 15ma - 7 14 notes: 1. for max. or min. conditions, use appropriate value specified under electrical characteristics for the applicable device type . 2. t ypical values are at v cc = 2. 5 v , t a = 25c ambient and maximum loading . 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 . 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.
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 0 7 - 0 0 1 2 pt0 467 - 3 0 8 / 0 5 /1 5 3 pi3ch3244 8 - bit bus switch, 2 - ena ble low 1.8v/2.5v/3.3v, high - bandwidth switch, hot plug 1.8v supply ( over operating range, t a = - 4 0 ~ + 85oc, v cc =1.8v10%, unless otherwise noted) symbol description test conditions (1) min typ (2) max unit v ih control input high v oltage guaranteed logic high level 1.2 - v cc +0.3 v v il control input low v oltage guaranteed logic low level - 0.3 - 0.6 v v ik clamp diode v oltage v cc = min., i in = - 18ma - - 0.7 - 1.8 v i ih input high current v cc = max., v in = v cc - - 1 a il input low current v cc = max., v in = gnd - - 1 a ozh high - impedance current 0 , b cc - - 1 a on switch on - resistance ( 3 ) v cc = min., v in = 0.0v i on = - 48ma - 4 8 ? cc = min., v in = 1 .6v i on = - 15ma - 10 25 notes: 1. for max. or min. conditions, use appropriate value specified under electrical characteristics for the applicable device type . 2. t ypical values are at v cc = 1.8 v , ta = 25c ambient and maximum loading . 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 . capacitance ( t a = 25oc, f=1mhz) sym bol (1) description test conditions typ (2) unit c i n input capacitance v in = 0v 2.0 pf c off a/b capacitance, switch off 3.5 c on a/b capacitance, switch on 7.0 note : 1. these parameters are determined by device characterization but are not production te sted power supply characteristics symbol description test conditions (1) min typ (2) max unit i cc quiescent power supply current v cc = 3.6v , v in = gnd or v cc - 0.2 0. 5 ma note : 1. for max. or min. conditions, use appropriate value specified under electric al characteristics for the applicable device. 2. t ypical values are at +25c ambient. dynamic electrical characteristics (over operating range, t a = - 40 ~ +85oc, v cc =3.3v10%) symbol description test conditions min typ max unit x talk crosstalk 10 mhz - - 6 0 - db o irr off - isolation 10 mhz - - 60 - bw - 3db bandwidth see test diagram - 500 - mhz
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 0 7 - 0 0 1 2 pt0 467 - 3 0 8 / 0 5 /1 5 4 pi3ch3244 8 - bit bus switch, 2 - ena ble low 1.8v/2.5v/3.3v, high - bandwidth switch, hot plug switch characteristics over 3.3v operating range symbol description test conditions (1) min typ max unit t plh, t phl propagation delay (2, 3) a x to b x , b x to a x see test diagram - - 0.3 ns t pzh, t pzl enable time en x to a x or b x see test diagram 1.5 - 9.0 t phz, t plz disable time en x to a x or b x see test diagram 1.5 - 9.0 note : 1. see test circuit and waveforms. 2. this parameter is guaranteed but not tested on propagation delays. 3. the switch contributes no propagation 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 0.30ns for 10pf load. since this time constan t is much smaller than the rise/fall times of typical driving signals, it adds very little propagation delay to the system. propagation delay of the switch when used in a system is determined by the driving circuit on the driving side of the switch and it s interaction with the load on the driven side. over 2.5v operating range symbol description test conditions (1) min typ max unit t plh, t phl propagation delay (2, 3) a x to b x , b x to a x see test diagram - - 0.3 ns t pzh, t pzl enable time en x to a x or b x s ee test diagram 1.5 - 15.0 t phz, t plz disable time en x to a x or b x see test diagram 1.5 - 12 .0 note: 1. see test circuit and waveforms. 2. this parameter is guaranteed but not tested on propagation delays. 3. the switch contributes no propagation 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 0.30ns for 10pf load. since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagation delay to the system. propagation delay of the 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. over 1.8v operating rang e symbol description test conditions (1) min typ max unit t plh, t phl propagation delay (2, 3) ax to bx, bx to ax see test diagram - - 0.3 ns t pzh, t pzl enable time enx to ax or bx see test diagram 1.5 - 25.0 t phz, t plz disable time enx to ax or bx se e test diagram 1.5 - 12.0 note: 1. see test circuit and waveforms. 2. this parameter is guaranteed but not tested on propagation delays. 3. the switch contributes no propagation delay other than the rc delay of the on - resistance of the switch and the load capaci tance. the time constant for the switch alone is of the order of 0.30ns for 10pf load. since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagation delay to the system. propagation delay of the 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 0 1 5 - 0 7 - 0 0 1 2 pt0 467 - 3 0 8 / 0 5 /1 5 5 pi3ch3244 8 - bit bus switch, 2 - ena ble low 1.8v/2.5v/3.3v, high - bandwidth switch, hot plug t est ci r cuit for electrical characteristics notes: 1. c l = load cap acitance: includes jig and probe capacitance. 2. r t = t ermination resistance: should be equal to z out of the pulse generator 3. all input impulses are supplied by generators having the following characteristics: prr 10 mhz, z o = 50 - ohm, t r 2.5ns, t f 2.5ns. 4. the outputs are measured one at a time with one transition per measurement. switch positions t est switch t plz , t pzl 6.0v t phz , t pzh gnd prop delay open t est ci r cuit for dynamic electrical characteristics d.u.t pulse generator v in rt v cc v out 10pf c l 200? 200? 6.0v
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 0 7 - 0 0 1 2 pt0 467 - 3 0 8 / 0 5 /1 5 6 pi3ch3244 8 - bit bus switch, 2 - ena ble low 1.8v/2.5v/3.3v, high - bandwidth switch, hot plug switching w aveforms applications information logic inputs the logic control inputs can be driven up to 3.6v regardless of the supply voltage. for example, given a +3.3v suppl y , en may be driven low to 0v and high to 3.6 v . driving en rail - to - rail ? minimizes power consumption. hot insertion for datacom and t elecom applications that have ten or more volts passing through the backplane, a high voltage from the power supply may be seen at the device input pins during hot insertion. the pi3ch3244 devices have maximum l imits of 6v and 120ma for 20ns. if the power is higher or applied for a longer time or repeatedly reaches the maximum limits, the devices can be damaged. rail - to - rail is a r egiste r ed trademark of nippon moto r ola, ltd.
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 0 7 - 0 0 1 2 pt0 467 - 3 0 8 / 0 5 /1 5 7 pi3ch3244 8 - bit bus switch, 2 - ena ble low 1.8v/2.5v/3.3v, high - bandwidth switch, hot plug mechanical information 2 0 - pin tssop ( l )
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 0 7 - 0 0 1 2 pt0 467 - 3 0 8 / 0 5 /1 5 8 pi3ch3244 8 - bit bus switch, 2 - ena ble low 1.8v/2.5v/3.3v, high - bandwidth switch, hot plug 20 - pin t qfn( zh ) ordering information part no. package c o de package pi3ch3244lex l lead free and green 20 - pin tssop, tape& reel pi3ch3244 zh e x zh lead free and green 20 - pin t qfn , tape & reel note: ? e = pb - free & green ? adding x suffix = tape /r eel pericom semiconductor corporation ? 1 - 800 - 435 - 2336 ? www.pericom.com pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or perfo rmance and to supply the best possible product. pericom does not assume any responsibility for use of any circuitry described other than the circu itry embodied in pericom product. the company makes no representations that circuitry described herein is free from patent infringement or other rights, of pericom .
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