ICS9248-136 Ver la hoja de datos (PDF) - Integrated Circuit Systems

Número de pieza

componentes Descripción

Lista de partido

ICS9248-136

Frequency Generator & Integrated Buffers for K7 Processor

Integrated Circuit Systems 

ICS9248-136

Advance Information

General Description

The ICS9248-136 is the single chip clock solution for Desktop/Notebook designs using the SIS 630S style chipset. It

provides all necessary clock signals 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 ICS9248-136

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.

Power Groups

VDDCPU = CPU

VDDPCI = PCICLK_F, PCICLK

VDDSDR = SDRAM

VDD48 = 48MHz, 24MHz, fixed PLL

VDDA = Core, PLL, X1, X2

VDDAGP=AGP, REF

MODE Pin Power Management Control Input

MODE

Pin 21

0

Pin 27

SDRAM11

Pin 28

SDRAM10

Pin 30

SDRAM9

1

CPU_STOP# PCI_STOP# SDRAM_STOP#

Pin 31

SDRAM8

PD#

Third party brands and names are the property of their respective owners.

3

Share Link: