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W83193R-04A - 83.3 MHZ 3-DIMM CLOCK

Download the W83193R-04A datasheet PDF. This datasheet also covers the W83 variant, as both devices belong to the same 83.3 mhz 3-dimm clock family and are provided as variant models within a single manufacturer datasheet.

General Description

The W83193R-02/-04/-04A is a Main board Clock Synthesizer which provides all clocks required for high-speed RISC or CISC microprocessor such as Intel PentiumPro, PentiumII, AMD or Cyrix.

Eight different frequency of CPU and PCI clocks are externally selectable with smooth transitions.

Key Features

  • Supports Pentium™, Pentium™ Pro, Pentium™ II, AMD and Cyrix CPUs with I C. 2.
  • 4 CPU clocks.
  • 12 SDRAM clocks for 3 DIMs.
  • 7 PCI synchronous clocks.
  • One IOAPIC clock for multiprocessor support.
  • Optional single or mixed supply: (VDD = VDDq3 = VDDq2 = VDDq2b = 3.3V) or (VDD = VDDq3 = 3.3V, VDDq2 = VDD2b = 2.5V).
  • < 250 pS skew among CPU and SDRAM clocks.
  • < 250 pS skew among PCI clocks.
  • Smooth frequency switch with.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (W83-193R.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Winbond

Part Number Description
W83193R-04 83.3 MHZ 3-DIMM CLOCK
W83193R-01 83.MHZ 3-DIMM CLOCK
W83193R-02 83.3 MHZ 3-DIMM CLOCK
W83194AR-73 150MHZ CLOCK
W83194AR-96 200MHZ CLOCK

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
Preliminary W83193R-02/-04/-04A 83.3 MHZ 3-DIMM CLOCK 1.0 GENERAL DESCRIPTION The W83193R-02/-04/-04A is a Main board Clock Synthesizer which provides all clocks required for high-speed RISC or CISC microprocessor such as Intel PentiumPro, PentiumII, AMD or Cyrix. Eight different frequency of CPU and PCI clocks are externally selectable with smooth transitions. The W83193R-02/-04/-04A also provides I2C serial bus interface to program the registers to enable or disable each clock outputs and choose the 0.5% or 1.5% center type spread spectrum. The W83193R-02/-04/-04A accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply. High drive PCI and SDRAM CLOCK outputs typically provide greater than 1V /nS slew rate into 30 pF loads.