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ICS90C65 Datasheet Dual Voltage Video/memory Clock Generator

Manufacturer: Integrated Circuit Systems

Overview: Integrated Circuit Systems, Inc. ICS90C65 Dual Voltage Video/Memory Clock Generator Introduction The Integrated Circuit Systems ICS90C65 is a dual clock generator for VGA applications. It simultaneously generates two clocks. One clock is for the video memory, and the other is the video dot clock. The ICS90C65 has been specifically designed to serve the portable PC market with operation at either 3.3V or 5V with a prehensive power-saving shut-down mode. This data sheet supplies sales order information, a functional overview, signal pin details, a block diagram, AC/DC characteristics, timing diagrams, and package mechanical information.

Datasheet Details

Part number ICS90C65
Manufacturer Integrated Circuit Systems
File Size 239.85 KB
Description Dual Voltage Video/Memory Clock Generator
Datasheet ICS90C65_IntegratedCircuitSystems.pdf

General Description

The Integrated Circuit Systems Video Graphics Array Clock Generator (ICS90C65) is capable of producing different output frequencies under firmware control.

The video output frequency is derived from a 14.318 MHz system clock available in IBM PC/XT/AT and Personal System/2 puters.

It is designed to work with Western Digital Imaging Video Graphics Array and 8514/A devices to optimize video subsystem performance.

Key Features

  • Specified for dual voltage operation (VDD=3.3V or 5V), but operates continuously from 3.0V to 5.25V Designed to be powered-down for extended battery life Backward compatibility to the ICS90C64 and ICS90C63 Dual Clock generator for the IBM-compatible Western Digital Imaging Video Graphics Array (VGA) LSI devices, and 8514/A chip sets Integral loop filter components, reduce cost and phase jitter Gen.

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