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PI3USB221 Scheda tecnica(PDF) 5 Page - Pericom Semiconductor Corporation

Il numero della parte PI3USB221
Spiegazioni elettronici  High-Speed USB2.0 1 2 Multiplexer/ DeMultiplexer Switch with Signal Enable
PDF  12 Pages
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Produttore elettronici  PERICOM [Pericom Semiconductor Corporation]
Homepage  http://www.pericom.com
Logo PERICOM - Pericom Semiconductor Corporation

PI3USB221 Scheda tecnica(HTML) 5 Page - Pericom Semiconductor Corporation

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5
PS9053
10/28/09
PI3USB221
High-Speed USB2.0 1:2 Multiplexer/
DeMultiplexer Switch with Signal Enable
SWITCHING CHARACTERISTICSoveroperatingrange,TA=–40°Cto85°C,VDD=3.3V±10%,GND=0V
Symbol
Parameter
Min
Typ1
Max
Unit
tpd
PropagationDelay2,3
0.25
ns
tON
Lineenabletime
StoD,nD
125
OEtoD,nD
100
tOFF
Linedisabletime
StoD,nD
12
OEtoD,nD
12
tSK(O)
Outputskewbetweencenterporttoanyotherport2
0.1
0.2
tSK(P)
Skewbetweenoppositetransitionsofthesameoutput
(tPHL–tPLH)2
0.1
0.2
Notes:
1. ForMaxorMinconditions,usetheappropriatevaluespecifiedunderElectricalCharacteristicsfortheapplicabledevicetype.
2. Specifiedbydesign
3. TheswitchcontributesnopropagationaldelayotherthantheRCdelayoftheonresistanceoftheswitchandtheloadcapacitance.Thetime
constantfortheswitchaloneisoftheorderof0.25nsfor10-pFload.Sincethistimeconstantismuchsmallerthantherise/falltimesoftypical
drivingsignals,itaddsverylittlepropagationaldelaytothesystem.Propagationaldelayofthebusswitch,whenusedinasystem,isdetermined
bythedrivingcircuitonthedrivingsideoftheswitchanditsinteractionswiththeloadonthedrivenside.
09-0004



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