Overview

The 950401 is a main clock synthesizer chip for AMD-K8. This provides all clocks required for Clawhammer and Sledgehammer systems. Spread spectrum may be enabled through I2C programming. Spread spectrum typically reduces system EMI by 8dB to 10dB. This simplifies EMI qualification without resorting to board design iterations or costly shielding. The 950401 employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature variations. Serial programming I2C interface allows changing functions, stop clock programming and frequency selection.

950401 - Block Diagram
950401 - Pinout
950401 - Block Diagram
950401 - Pinout
  • 2 - Differential pair push-pull CPU clocks @ 3.3V
  • 7 - PCI (Including 1 free running) @3.3V
  • 3 - Selectable HT/PCI 66/33MHz @3.3V
  • 1 - 48MHz, @3.3V fixed.
  • 1 - 24/48MHz @ 3.3V
  • 3 - REF @3.3V, 14.318MHz.
  • Up to 220MHz frequency support
  • Support power management: PCI stop and stop clocks controlled by I2C.
  • Spread spectrum for EMI reduction
  • Uses external 14.318MHz crystal
  • I2C programmability features
  • Supports Hypes transport technology (HT66 output).

Documentation

= Featured Documentation
Type Title Date
Datasheet
950401 Datasheet
PDF 180 KB
Product Change Notice
PCN# : A1506-02 Gold wire to Copper wire
PDF 35 KB
Product Change Notice
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products
PDF 361 KB
3 items

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    950401CFLFT
    circleObsolete
    memory
    view_in_ar
    		SSOP 48 C Yes Reel
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