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ICS9131 - 32 KhZ Motherboard Frequency Generator

General Description

The ICS9131 offers a tiny footprint solution for generating a selectable CPU clock from a 32.768 kHz crystal.

The device allows a variety of microprocessors to be clocked by changing the state of address lines FS0, FS1, and FS2.

Key Features

  • Single 32.768 kHz crystal generates system clock and selectable CPU clock Generates CPU clocks from 8 MHz to 100 MHz. Operates from 3.3V or 5.0V supply Operates up to 66 MHz at 3.3V Separate VDD for 32 kHz clock enables it to run from battery.

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Datasheet Details

Part number ICS9131
Manufacturer Integrated Circuit Systems
File Size 295.07 KB
Description 32 KhZ Motherboard Frequency Generator
Datasheet download datasheet ICS9131 Datasheet

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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. ICS9131 32 KhZ Motherboard Frequency Generator General Description The ICS9131 offers a tiny footprint solution for generating a selectable CPU clock from a 32.768 kHz crystal. The device allows a variety of microprocessors to be clocked by changing the state of address lines FS0, FS1, and FS2. The ICS9131 is the ideal solution for replacing high speed oscillators and for reducing clock speeds to save power in computers. The device provides smooth, glitch-free frequency transitions so that the CPU can continue to operate during slow down or speed up. The rate of frequency change makes the ICS9131 compatible with all 386DX, 386SX, 486DX, 486DXZ, 486SX and Pentiumâ„¢ microprocessors. The ICS9131 is driven from a single 32.768 kHz crystal.