W83194AR-73 Datasheet PDF - Winbond 150MHZ CLOCK Specs

W83194AR-73 - 150MHZ CLOCK

Datasheet Summary

Description

The W83194AR-73 is a Clock Synthesizer for Intel Whitney chipset.

W83194AR-73 provides all clocks required for high-speed RISC or CISC microprocessor and also provides 32 different frequencies of CPU, SDRAM, PCI, 3V66, IOAPIC clocks frequency setting.

Features

2 CPU clocks 9 SDRAM clocks for 2 DIMMs 8 PCI synchronous clocks. Optional single or mixed supply: (VDDR = VDDP=VDDS = VDD48 = VDD3 = 3.3V, VDDA=VDDC=2.5V) Skew form CPU to PCI clock -1 to 4 ns, center 2.6 ns Smooth frequency switch with selections from 66.8 to 150MHz I2C 2-Wire serial interface and I2C read back 0.25% center and 0-0.5% down type spread spectrum Programmable re.

Datasheet Details

Part number	W83194AR-73
Manufacturer	Winbond
File Size	135.62 KB
Description	150MHZ CLOCK
Datasheet	W83194AR-73 Datasheet
Additional preview pages of the W83194AR-73 datasheet.

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Full PDF Text Transcription

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W83194AR-73 150MHZ CLOCK FOR WHITNEY CHIPSET 1.0 GENERAL DESCRIPTION The W83194AR-73 is a Clock Synthesizer for Intel Whitney chipset. W83194AR-73 provides all clocks required for high-speed RISC or CISC microprocessor and also provides 32 different frequencies of CPU, SDRAM, PCI, 3V66, IOAPIC clocks frequency setting. All clocks are externally selectable with smooth transitions. The W83194AR-73 provides I2C serial bus interface to program the registers to enable or disable each clock outputs and provides 0.25% center and 0-0.5% down type spread spectrum to reduce EMI. The W83194AR-73 accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply. High drive PCI and SDRAM CLOCK outputs typically provide greater than 1 V /ns slew rate into 30 pF loads.

Published: Apr 17, 2005 |