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CY28442 - Clock Generator

Description

I/O, PU 3.3V LVTTL input for enabling assigned SRC clock (active low) or 100 MHz Serial Reference Clock.

Selectable through CLKREQA# defaults to enable/disable SRCT/C4, CLKREQB# defaults to enable/disable SRCT/C5.

Assignment can be changed via SMBUS register Byte 8.

Features

  • Compliant to Intel CK410M.
  • Supports Intel Pentium-M CPU.
  • Selectable CPU frequencies.
  • Differential CPU clock pairs.
  • 100-MHz differential SRC clocks.
  • 96-MHz differential dot clock.
  • 48-MHz USB clocks.
  • SRC clocks independently stoppable through CLKREQ#[A:B].
  • 96/100 MHz Spreadable differential clock.
  • 33-MHz PCI clock.
  • Low-voltage frequency select input.
  • I2C support with readback capabilities.

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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.

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www.DataSheet4U.com ADVANCE INFORMATION CY28442 Clock Generator for Intel Alviso Chipset Features • Compliant to Intel CK410M • Supports Intel Pentium-M CPU • Selectable CPU frequencies • Differential CPU clock pairs • 100-MHz differential SRC clocks • 96-MHz differential dot clock • 48-MHz USB clocks • SRC clocks independently stoppable through CLKREQ#[A:B] • 96/100 MHz Spreadable differential clock. • 33-MHz PCI clock • Low-voltage frequency select input • I2C support with readback capabilities • Ideal Lexmark Spread Spectrum profile for maximum electromagnetic interference (EMI) reduction • 3.
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