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W83195BR-S - STEPLESS 200MHZ 3-DIMM CLOCK FOR SOLANO CHIPSET

Description

The W83195BR-S is a Clock Synthesizer for Intel 815 Solano chipset.

W83195BR-S 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.
  • 3 3V66 for chipset and AGP clocks.
  • 12 SDRAM clocks for 3 DIMMs.
  • 8 PCI synchronous clocks.
  • Optional single or mixed supply: (VddR = VddP=VddS = Vdd48 = Vdd3 = 3.3V, VddLAPIC=VddLCPU=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 200 MHz 2 2.
  • I C 2-Wire serial interface and I C read back.
  • 0.25% and 0.5% center type spread spectrum.

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W83195BR-S STEPLESS 200MHZ 3-DIMM CLOCK FOR SOLANO CHIPSET 1.0 GENERAL DESCRIPTION The W83195BR-S is a Clock Synthesizer for Intel 815 Solano chipset. W83195BR-S 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 W83195BR-S provides I2C serial bus interface to program the registers to enable or disable each clock outputs and provides 0.25% and 0.5% center type spread spectrum to reduce EMI. A watch dog timer is quipped and when time out, the RESET# pin will output 4ms pulse signal. The W83195BR-S provides stepless frequency programming by controlling the VCO freq. and the clock output divisor ratio.
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