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CY2277A - K6 Clock Synthesizer/Driver

General Description

The CY2277A is a Clock Synthesizer/Driver for Pentium, Pentium II, 6X86, and K6 portable PCs designed with the Intel® 82430TX or similar chipsets.

Key Features

  • Mixed 2.5V and 3.3V operation.
  • Complete clock solution to meet requirements of Pentium®, Pentium® II, 6x86, or K6 motherboards.
  • Four CPU clocks at 2.5V or 3.3V.
  • Up to eight 3.3V SDRAM clocks.
  • Seven 3.3V synchronous PCI clocks, one free running.
  • Two 3.3V USB/IO clocks at 48 or 24 MHz, selectable by serial interface.
  • One 2.5V IOAPIC clock at 14.318 MHz.
  • Two 3.3V Ref. clocks at 14.318 MHz.
  • Factory-EPROM programmable C.

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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
www.DataSheet4U.com 7A CY2277A Pentium®/II, 6x86, K6 Clock Synthesizer/Driver for Desktop/ Mobile PCs with Intel® 82430TX and 2 DIMMs or 3 SO-DIMMs Features • Mixed 2.5V and 3.3V operation • Complete clock solution to meet requirements of Pentium®, Pentium® II, 6x86, or K6 motherboards — Four CPU clocks at 2.5V or 3.3V — Up to eight 3.3V SDRAM clocks — Seven 3.3V synchronous PCI clocks, one free running — Two 3.3V USB/IO clocks at 48 or 24 MHz, selectable by serial interface — One 2.5V IOAPIC clock at 14.318 MHz — Two 3.3V Ref. clocks at 14.