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CY2254A - Pentium Processor Compatible Clock Synthesizer/Driver

Description

The CY2254A is a Clock Synthesizer/Driver that provides the multiple clocks required for a Pentium-based PC.

The CY2254A has low-skew outputs (< 250 ps between the CPU Clocks, < 250 ps between the PCI Clocks).

In addition, the CY2254A CPU clock outputs have less than 200 ps cycle-to-cycle jitter.

Features

  • Multiple clock outputs to meet requirements of most Pentium® motherboards.
  • Four pin-selectable CPU clocks @ 66.66 MHz, 60.0 MHz, and 50.0 MHz for support of Intel Triton™ PCIset based PC.
  • 55.0 MHz pin-selectable CPU clock also available (2 option only).
  • Six PCI clocks at 1/2 CPU Clock frequency.
  • One I/O clock @ 24 MHz.
  • One Keyboard Controller clock @ 12 MHz (1 option) or one Universal Serial Bus clock @ 48 MHz (2 option).
  • Two Ref.

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Datasheet preview – CY2254A

Datasheet Details

Part number CY2254A
Manufacturer SpectraLinear
File Size 137.84 KB
Description Pentium Processor Compatible Clock Synthesizer/Driver
Datasheet download datasheet CY2254A Datasheet
Additional preview pages of the CY2254A datasheet.

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Full PDF Text Transcription

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Y2254A www.DataSheet4U.com CY2254A Pentium® Processor Compatible Clock Synthesizer/Driver Features • Multiple clock outputs to meet requirements of most Pentium® motherboards — Four pin-selectable CPU clocks @ 66.66 MHz, 60.0 MHz, and 50.0 MHz for support of Intel Triton™ PCIset based PC — 55.0 MHz pin-selectable CPU clock also available (2 option only) — Six PCI clocks at 1/2 CPU Clock frequency — One I/O clock @ 24 MHz — One Keyboard Controller clock @ 12 MHz (1 option) or one Universal Serial Bus clock @ 48 MHz (2 option) — Two Ref. clocks @ 14.318 MHz — Ref. 14.
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