器件名称: W320-03
功能描述: 200-MHz Spread Spectrum Clock Synthesizer/Driver with Differential CPU Outputs
文件大小: 272.89KB 共19页
简 介:3
PRELIMINARY
W320-03
200-MHz Spread Spectrum Clock Synthesizer/Driver with Differential CPU Outputs
Features Compliant to Intel CK-Titan Clock Synthesizer/Driver Specifications Multiple output clocks at different frequencies — Three pairs of differential CPU outputs, up to 200 MHz — Ten synchronous PCI clocks, three free-running — Six 3V66 clocks — Two 48-MHz clocks — One reference clock at 14.318 MHz — One VCH clock Spread Spectrum clocking (down spread) Power-down features (PCI_STOP#, CPU_STOP# PWR_DWN#) OE and Test Mode support 56-pin SSOP package and 56-pin TSSOP package Enables reduction of EMI and overall system cost Enables ACPI compliant designs Benefits Supports next generation Pentium processors using differential clock drivers Motherboard clock generator — Support Multiple CPUs and a chipset — Support for PCI slots and chipset — Supports AGP, DRCG reference and Hub Link — Supports USB host controller and graphic controller — Supports ISA slots and I/O chip
Three Select inputs (Mode select & IC Frequency Select) Supports up to four CPU clock frequencies Enables ATE and “bed of nails” testing Widely available, standard package enables lower cost
Logic Block Diagram
VDD_REF
PWR
Pin Configurations
SSOP & TSSOP Top View
VDD_REF XTAL_IN XTAL_OUT GND_REF PCI_F0
PWR Stop Clock Control
X1 X2
XTAL OSC
REF
1 2 3 4 5 6 7 8 9 10 11
56 55 54 53 52 51 50 49 48 47 46
REF S1 S0 CPU_STOP# CPU0 CPU#0 VDD_CPU CPU1 CPU#1 GND_CPU VDD_CPU CPU2 CPU#2 MULT0 IREF GND_IRE……
