|||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||| 2 - channel 4 :1 mux/demux, enable low 1.8v/2.5v/3.3v , high - bandwidth, hot plug 2015 - 10 - 00 0 1 pt0 4 78 - 5 10 / 2 6 /1 5 1 p i3ch 281 features ? near - zero propagation delay ? 5 - ohm switches connect inputs to outputs ? high signal passing bandwidth ( 3 00 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) : - 16 - pin 1 50 - mil wide plastic q sop ( q ) pin configuration block diagram description the pi3ch281 is a 2 - channel, 4 :1 multiplexer/ demultiplexer with 3 - state outputs. the switch introduces no additional ground bounce noise or propagation delay. the p i3ch 281 device is very useful in switching signals that have high bandwidth (500 mhz). pin description pin no pin name description 1 1111111 en enable 2, 14 s 1 , s 0 select input 3, 4, 5, 6 i a 3 , i a 2, i a 1, i a 0 data outputs 7, 9 y a , y b data outputs 8 gn d ground 10, 11, 12, 13 i b 0 , i b 1 , i b 2 , i b 3 data outputs 15 1111111 nc not connected 16 v cc power t ruth t able (1) note: 1. h=high voltage level ; l=low voltage level enable select en s 1 s 0 y function h x x hi - z disable l l l i0 s 1 - 0 =0 l l h i1 s 1 - 0 =1 l h l i2 s 1 - 0 =2 l h h i3 s 1 - 0 =3
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||| 2015 - 10 - 00 0 1 pt0 4 78 - 5 10 / 2 6 /1 5 2 pi3 ch 281 2 - channel 4 :1 mux/demux, enable low 1.8v/2.5v/3.3v , high - bandwidth, hot plug maximum ratings storage temperature ................................ ................................ ................... - 65 o c to +1 50 o c ambient 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 2 0 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 clamp 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 (3) 0 , in cc - - 1 a on switch on - resistance (4) 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 m ax. 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 y and in pin at indicated current through the switch. on resistance is determined by the lower of the voltages on the two ( y , in) 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) m ax 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 = m ax ., i in = - 6 ma - - 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 (3) 0 , in cc - - 1 a on switch on - resistance (4) v cc = min., v in = 0.0v i on = - 48ma - 4 8 ? cc = min., v in = 2.25 v i on = - 15ma - 7 14 notes: 1. for max. or m in. conditions, use appropriate value specified under electrical characteristics for the applicable device type . 2. t ypical values are at v cc = 2.5 v , ta = 25c ambient and maximum loading . 3. measured by the voltage drop between y and in pin at indicated current through the switch. on resistance is determined by the lower of the voltages on the two ( y , in) 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 maximu m rating conditions for extended periods may affect reliability.
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||| 2015 - 10 - 00 0 1 pt0 4 78 - 5 10 / 2 6 /1 5 3 pi3 ch 281 2 - channel 4 :1 mux/demux, enable low 1.8v/2.5v/3.3v , high - bandwidth, 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 u nit 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 (3) 0 , in cc - - 1 a on switch on - resistance (4) v cc = min., v in = 0.0v i on = - 48ma - 4 8 ? cc = min., v in = 1.6 v i on = - 15ma - 10 25 notes: 1. for max. or m in. conditions, use appropriate value specified under electrical characteristics for the applicable device type . 2. typical values are at v cc = 1.8 v , ta = 25c ambient and maximum loading. 3. measured by the voltage drop between y and in pin at indicated current through the switch. on resistance is determined by the lower of the voltages on the two ( y , in) pins . capacitance ( t a = 25oc, f=1mhz) symbol (1) description test conditions typ (2) unit c i n input capacitance v in = 0v 3.0 pf c off( i n) in capacitance, sw itch off 3.5 c off(y) y capacitance, switch off 12 c on y/in capacitance, switch on 15 .0 note : 1. these parameters are determined by device characterization but are not production tested power supply characteristics symbol description test condition s (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 electrical 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 see test diagram - - 60 - db o irr off - isolation see test diagram - - 60 - bw - 3db bandwidth see test diagram - 3 00 - mhz switch characteristics over 3.3v operating range symbol description test conditions (1) min typ max unit t plh, t phl propagation delay (2, 3) y to in, in to y see test diagram - - 0.3 ns t pzh, t pzl enable time s or en to y or in see test diagram 1.5 - 9.0 t phz, t plz disable time s or en to y or in see test diagram 1.5 - 9.0
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||| 2015 - 10 - 00 0 1 pt0 4 78 - 5 10 / 2 6 /1 5 4 pi3 ch 281 2 - channel 4 :1 mux/demux, enable low 1.8v/2.5v/3.3v , high - bandwidth, hot plug note : 1. see test circuit and waveforms. 2. this parameter is guaranteed but not tested on propagation delays. 3. the switch contributes no p ropagation 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 typic al 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. ov er 2.5v operating range symbol description test conditions (1) min typ max unit t plh, t phl propagation delay (2, 3) y to in, in to y see test diagram - - 0.3 ns t pzh, t pzl enable time s or en to y or in see test diagram 1.5 - 15.0 t phz, t plz disable time s or en to y or in 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 syst em. 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 range symbol description test conditions (1) min typ max unit t plh, t phl propagation delay (2, 3) y to in, in to y see test diagram - - 0.3 ns t pzh, t pzl enable time s or en to y or in see test diagram 1.5 - 25.0 t phz, t plz disable time s or en to y or in 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 alo ne 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 determi ned by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. t est ci r cuit for electrical characteristics notes: 1. c l = load capacitance: 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. d.u.t pulse generator v in rt v cc v out 10pf c l 200? 200? 6.0v
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||| 2015 - 10 - 00 0 1 pt0 4 78 - 5 10 / 2 6 /1 5 5 pi3 ch 281 2 - channel 4 :1 mux/demux, enable low 1.8v/2.5v/3.3v , high - bandwidth, hot plug 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 chara cteristics switching waveforms voltage waveforms enable and disable times pulse skew - t sk(p) hp4195a hp11667a s1 v cc r 1 t 1 50? 10pf d.u.t
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||| 2015 - 10 - 00 0 1 pt0 4 78 - 5 10 / 2 6 /1 5 6 pi3 ch 281 2 - channel 4 :1 mux/demux, enable low 1.8v/2.5v/3.3v , high - bandwidth, hot plug applications information logic inputs the logic control inputs can be driven up to 3.6v reg ardless 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 t hrough the backplane, a high voltage from the power supply may be seen at the device input pins during hot insertion. the pi3ch 281 devices have maximum limits of 6v and 120ma for 20ns. if the power is higher or applied for a longer time or repeatedly reach es the maximum limits, the devices can be damaged. rail - to - rail is a r egiste r ed trademark of nippon moto r ola, ltd.
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||| 2015 - 10 - 00 0 1 pt0 4 78 - 5 10 / 2 6 /1 5 7 pi3 ch 281 2 - channel 4 :1 mux/demux, enable low 1.8v/2.5v/3.3v , high - bandwidth, hot plug mechanical information 16 - pin q sop ( q ) ordering information part no. package cede package pi3ch 281 q e q lead free and green 16 - pin q sop PI3CH281QEX q lead free and green 16 - pin qsop , tape & reel note: ? e = pb - free & green ? adding x suffix = tape /r eel pericom semiconductor corporation ? 1 - 800 - 435 - 2336 ? www.pericom.com pericom reserve s the right to make changes to its products or specifications at any time, without notice, in order to improve design or perf ormance and to supply the best possible product. pericom does not assume any responsibility for use of any circuitry described othe r than the circuitry 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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