CY2254A - Pentium Processor Compatible Clock Synthesizer/Driver

Product Overview

Cypress Semiconductor

Part number	CY2254A
Manufacturer	Cypress Semiconductor
File Size	124.31 KB
Description	Pentium Processor Compatible Clock Synthesizer/Driver
Datasheet	CY2254A Datasheet
Additional preview pages of the CY2254A datasheet.

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.

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 o.

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Published: Sep 8, 2010 |