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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 Details

Part number CY2254A
Manufacturer SpectraLinear
File Size 137.84 KB
Description Pentium Processor Compatible Clock Synthesizer/Driver
Datasheet download datasheet CY2254A Datasheet

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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.

View original datasheet text
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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