UPD72012 Ver la hoja de datos (PDF) - NEC => Renesas Technology

Número de pieza

componentes Descripción

Lista de partido

UPD72012

HUB CONTROLLER FOR UNIVERSAL SERIAL BUS

NEC => Renesas Technology 

CS Timing Chart

HUB power supply

Up port D+ line

PP pin output

CS pin input

CS pin operation

region

500 µsec 500 µsec

BUS reset

µPD72012

500 µsec

500 µsec

Port power

supply ON

DEVICE

connection

inrush current

Output cut-off

Overcurrent

generation

Power supply ON

Bus power: Up port connection

Self-power: Power supply ON

CS detection

delay time

CS active period

Remark The active period of the CS pin is in effect only when the PP pin is ON.

There is a delay time of approximately 500 µsec duration at the CS pin.

Data Sheet S13918EJ3V0DS

31

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