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ICS82C404 - Dual Programmable Graphics Frequency Generator

General Description

The ICS82C404 is a fully programmable graphics clock generator.

It can generate user specified clock frequencies using an externally generated input reference or by a single crystal.

The output frequency is programmed by entering a 24-bit www.DataSheet4U.com digital word through the serial port.

Key Features

  • Pin-for-pin and function compatible with ICD’s version of the 82C404 Dual programmable graphics clock generator Memory and video clocks are individually programmable “on-the-fly” Ideal for designs where multiple or varying frequencies are required Increased frequency resolution from optional pre-divideby-2 on the M counter Output enable feature available for tristating outputs.

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Datasheet Details

Part number ICS82C404
Manufacturer Integrated Circuit Systems
File Size 434.79 KB
Description Dual Programmable Graphics Frequency Generator
Datasheet download datasheet ICS82C404 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Integrated Circuit Systems, Inc. ICS82C404 Advance Information Dual Programmable Graphics Frequency Generator General Description The ICS82C404 is a fully programmable graphics clock generator. It can generate user specified clock frequencies using an externally generated input reference or by a single crystal. The output frequency is programmed by entering a 24-bit www.DataSheet4U.com digital word through the serial port. Two fully user-programmable phase-locked loops are offered in a single package. One PLL is designed to drive the memory clock, while the second drives the video clock. The outputs may be changed on-the-fly to any desired frequency between 390 kHz and 120 MHz. The ICS82C404 is ideally suited for any design where multiple or varying frequencies are required.