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W83194AR-W - 150MHZ CLOCK

Datasheet Summary

Description

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

W83194AR-W provides all clocks required for high-speed RISC or CISC microprocessor and also provides 64 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 0.5% and 0.75% center type spread spectrum Programmable registers.

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Datasheet Details

Part number W83194AR-W
Manufacturer Winbond
File Size 171.15 KB
Description 150MHZ CLOCK
Datasheet download datasheet W83194AR-W Datasheet
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W83194AR-W 150MHZ CLOCK FOR WHITNEY CHIPSET 1.0 GENERAL DESCRIPTION The W83194AR-W is a Clock Synthesizer for Intel Whitney chipset. W83194AR-W provides all clocks required for high-speed RISC or CISC microprocessor and also provides 64 different frequencies of CPU, SDRAM, PCI, 3V66, IOAPIC clocks frequency setting. All clocks are externally selectable with smooth transitions. The W83194AR-W provides I2C serial bus interface to program the registers to enable or disable each clock outputs and provides 0.5% and 0.75% center type spread spectrum to reduce EMI. The W83194AR-W 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.
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