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UPD31172 - MOS INTEGRATED CIRCUIT

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NEC

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UPD31172 MOS INTEGRATED CIRCUIT by NEC - Datasheet Preview — Datasheet preview – UPD31172

Datasheet Details

Part number	UPD31172
Manufacturer	NEC
File Size	278.40 KB
Description	MOS INTEGRATED CIRCUIT
Datasheet	UPD31172 Datasheet
Additional preview pages of the UPD31172 datasheet.

Product details

Description

The µPD31172 (commercial name: VRC4172) is a companion chip designed for NEC’s µPD30121 microprocessor (commercial name: VR4121).

Features

Directly connectable to VR4121.
On-chip USB host controller.
USB ports: 2.
Compliant with the USB OpenHCI specifications, release 1.0.
Communicates with USB device asynchronously with host CPU.
Full-speed (12 Mbps) and low-speed (1.5 Mbps) modes supported.
System clock: 48 MHz.
On-chip PS/2 controller.
On-chip IEEE1284 parallel controller.
On-chip 16550 serial controller.
General-purpose ports (GP.

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Published: Apr 17, 2005 |