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W48S87-04 - Spread Spectrum 3 DIMM Desktop Clock

Key Features

  • Outputs.
  • 4 CPU Clock (2.5V or 3.3V, 50 to 83.3 MHz).
  • 7 PCI (3.3V).
  • 1 48-MHz for USB (3.3V).
  • 1 24-MHz for Super I/O (3.3V).
  • 2 REF (3.3V).
  • 1 IOAPIC (2.5V or 3.3V).
  • 12 SDRAM.
  • Serial data interface provides additional frequency selection, individual clock output disable, and other functions.
  • Smooth transition supports dynamic frequency assignment.
  • Frequency selection not affected during power down/up.

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W48S87-04 Spread Spectrum 3 DIMM Desktop Clock IC WORKS
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PRELIMINARY W48S87-04 Spread Spectrum 3 DIMM Desktop Clock Features • Outputs — 4 CPU Clock (2.5V or 3.3V, 50 to 83.3 MHz) — 7 PCI (3.3V) — 1 48-MHz for USB (3.3V) — 1 24-MHz for Super I/O (3.3V) — 2 REF (3.3V) — 1 IOAPIC (2.5V or 3.3V) — 12 SDRAM • Serial data interface provides additional frequency selection, individual clock output disable, and other functions • Smooth transition supports dynamic frequency assignment • Frequency selection not affected during power down/up cycle • Supports a variety of power-saving options • 3.3V operation • Available in 48-pin SSOP (300 mils) Key Specifications ±0.5% Spread Spectrum Modulation: ......................... ±0.5% Jitter (Cycle-to-Cycle): .................................................250 ps Duty Cycle: .............................