Programmable System Clock Chip For ATI RS/RD690 K8TM-Based Systems

The 951464 is a main clock synthesizer chip that provides all clocks required for ATI RS/RD690-based systems. An SMBus interface allows full control of the device.

Features

  • 2 - 0.7V current-mode differential CPU pairs
  • 6 - 0.7V current-mode differential SRC pairs
  • 2 - 0.7V current-mode differential ATIG pairs
  • 1 - HyperTransport clock seed
  • 2 - 48MHz USB clock
  • 3 - 14.318MHz Reference clock
  • CPU outputs cycle-to-cycle jitter < 85ps
  • SRC outputs cycle-to-cycle jitter < 125ps
  • ATIG outputs cycle-to-cycle jitter < 125ps
  • +/- 300ppm frequency accuracy on CPU, SRC & ATIG clocks
  • 3 - Programmable Clock Request pins for SRC and ATIG clocks
  • ATIGCLKs are programmable for frequency
  • Spread Spectrum for EMI reduction
  • Outputs may be disabled via SMBus
  • External crystal load capacitors for maximum frequency accuracy

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
951464AGLFT Obsolete PAG56 TSSOP 56 C Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
951464 datasheet Datasheet PDF 248 KB Sep 16, 2009
PCNs & PDNs
PDN# : K-13-01R2 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 125 KB Oct 2, 2013
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 23, 2013
PDN# : K-13-01R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 125 KB Feb 27, 2013
PDN# : K-13-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 122 KB Jan 15, 2013