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CY28404 - CK409-COMPLIANT CLOCK SYNTHESIZER

General Description

Pin No.

1, 2, 48 1, 2, 7, 8, 9 4 Name REF(0:2) FS_A, FS_B, FS_C, I FS_D, FS_E XIN I Type O, SE Description Reference Clock.

3.3V 14.318-MHz clock output.

Key Features

  • Supports Intel Springdale/Prescott (CK409).
  • Selectable CPU frequencies.
  • 3.3V power supply.
  • Nine copies of PCI clock.
  • Four copies 3V66 clock with optional VCH.
  • Three copies 48-MHz clock.
  • Three copies REF clock.
  • Two differential CPU clock pairs.
  • Support SMBus/I2C Byte, Word, and Block Read/Write.
  • Dial-A-Frequency.
  • Ideal Lexmark Spread Spectrum profile for maximum electromagnetic interference (EMI).

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Other Datasheets by Cypress (now Infineon)

Part Number Description
CY28400 100-MHz Differential Buffer
CY28401 100-MHz Differential Buffer
CY28405 CK409-Compliant Clock Synthesizer
CY28408 Clock Synthesizer
CY28409 Clock Synthesizer

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.

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www.DataSheet4U.com CY28404 CK409-Compliant Clock Synthesizer Features • Supports Intel Springdale/Prescott (CK409) • Selectable CPU frequencies • 3.3V power supply • Nine copies of PCI clock • Four copies 3V66 clock with optional VCH • Three copies 48-MHz clock • Three copies REF clock • Two differential CPU clock pairs • Support SMBus/I2C Byte, Word, and Block Read/Write • Dial-A-Frequency • Ideal Lexmark Spread Spectrum profile for maximum electromagnetic interference (EMI) reduction • 48-pin SSOP package Table 1.