AV9248-114 データシートの表示（PDF） - Integrated Circuit Systems

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AV9248-114

AMD - K7™ System Clock Chip

Integrated Circuit Systems 

ICS9248-114

General Description

The ICS9248-114 is a main clock synthesizer chip for AMD-K7 based systems with VIA style chipset. This provides all clocks

required for such a system.

Spread spectrum may be enabled through I2C programming. Spread spectrum typically reduces system EMI by 8dB to 10dB.

This simplifies EMI qualification without resorting to board design iterations or costly shielding. The ICS9248-114

employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature

variations.

Serial programming I2C interface allows changing functions, stop clock programming and frequency selection.

Mode Pin - Power Management Input Control

MODE, Pin 7

(Latched Input)

0

1

Pin 2

CPU_STOP#

(Input)

REF0

(Output)

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