PI3USB221 datasheet(5/12 Pages) PERICOM

部件名	PI3USB221

功能描述	High-Speed USB2.0 1 2 Multiplexer/ DeMultiplexer Switch with Signal Enable

PDF	12 Pages

Scroll/Zoom	100%

制造商	PERICOM [Pericom Semiconductor Corporation]

网页	http://www.pericom.com

标志

5 / 12 page

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

tON

Lineenabletime

StoD,nD

125

OEtoD,nD

100

tOFF

Linedisabletime

StoD,nD

OEtoD,nD

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

PI3USB221 数据表(PDF) 5 Page - Pericom Semiconductor Corporation

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