AV9155C datasheet(3/14 Pages) ICST

No. de pieza	AV9155C

Descripción Electrónicos	Low Cost 20-Pin Frequency Generator

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Fabricante Electrónico	ICST [Integrated Circuit Systems]

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AV9155C

Functionality - AV9155C-01

(Using 14.318 MHz input. All frequencies in MHz.)

CLOCK#2 CPU and 2XCPU

*VDD minimum 3.15V.

PERIPHERAL CLOCKS

REFERENCE CLOCKS

Functionality - AV9155C-02

(Using 14.318 MHz input. All frequencies in MHz.)

CLOCK#2 CPU and 2XCPU

* VDD minimum 3.15V

PERIPHERAL CLOCKS

REFERENCE CLOCKS

Frequency Transitions

A key feature of the AV9155C is its ability to provide smooth,

glitch-free frequency transitions on the CPU and 2XCPU

clocks when the frequency select pins are changed. These

frequency transitions do not violate the Intel 486 specification

of less than 0.1% frequency change per clock period.

Using an Input Clock as Reference

The AV9155C is designed to accept a 14.318 MHz crystal as

the input reference. With some external changes, it is possible

to use a crystal oscillator or clock input. Please see application

note AN04 for details on driving the AV9155C with a clock.

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