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CY28354-400 - 210-MHz 24-Output Buffer

Description

The CY28354-400 is a 2.5V buffer designed to distribute high-speed clocks in PC applications.

The part has 24 outputs to support four unbuffered DDR DIMMS.

The CY28354-400 can be used in conjunction with CY28326 similar clock synthesizer for the PTT880 and KTT880 chipsets.

Features

  • Supports VIA PRO 266, KT266 and P4x266.
  • Dual 1- to 12-output buffer/driver.
  • Supports up to four DDR DIMMs.
  • Low-skew outputs (< 75 ps).
  • Supports 266-MHz, 333-MHz and 400-MHz DDR SDRAM.
  • SMBus Read and Write support.
  • Space-saving 48-pin SSOP package Functional.

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Full PDF Text Transcription

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CY28354-400 210-MHz 24-Output Buffer for 4-DDR DIMMS for VIA Chipsets Support Features • Supports VIA PRO 266, KT266 and P4x266 • Dual 1- to 12-output buffer/driver • Supports up to four DDR DIMMs • Low-skew outputs (< 75 ps) • Supports 266-MHz, 333-MHz and 400-MHz DDR SDRAM • SMBus Read and Write support • Space-saving 48-pin SSOP package Functional Description The CY28354-400 is a 2.5V buffer designed to distribute high-speed clocks in PC applications. The part has 24 outputs to support four unbuffered DDR DIMMS. The CY28354-400 can be used in conjunction with CY28326 similar clock synthesizer for the PTT880 and KTT880 chipsets. The CY28354-400 also includes an SMBus interface which can enable or disable each output clock. On power-up, all output clocks are enabled.
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