Select Language
Main-Chip Clock Generator for SiS 661FX/651/648FX/655 Chipsets
General Description

The RTM360-660 is a 48-pin package, main-chip frequency generator that meets clock synthesizer/driver specifications of SiS 645/650/648/648FX/660FX/661FX chipset solutions for Intel® P4. The RTM360-660 can be implemented with a Realtek Zero-delay DDR clock buffer, the RTM680-647 (48-pin SSOP, supporting 3 DDR) or the RTM680-627 (28-pin SSOP, supporting 2 DDR). The RTM360-660 provides a standard serial bus for programmable clock functions. Through this interface, spread spectrum technology can be enabled to reduce EMI.

  • CPU frequency ratio supports up to 333MHz (266/200/166/133/100MHz)
  • Power down feature
  • Programmable spread spectrum
  • Programmable driving strength
  • Programmable skew delay
  • Programmable PLL frequency
  • Programmable loop filter
  • Programmable smooth-divider
  • Programmable current Iref
  • Programmable current Vref
  • Programmable watchdog & smooth reset
  • DOS, Windows 9x/NT/2000/XP apps
  • Free-run mode support

RTM360-660 Pin Assignments



RTM360-660 Block Diagram




Realtek Wins Three Best Choice Awards at COMPUTEX TAIPEI 2018, including a Best Choice Golden Award
Realtek Launches World’s First Single-Chip 2.5G Ethernet Controller for Multiple Applications, including Gaming Solution
Realtek PCIe GBE Family Controller Series Drivers
Realtek PCIe FE Family Controller Series Drivers
HD Audio Codec Driver
Monthly Revenue Update
About Realtek | Products | Press Room | Downloads | Investor Relations | Employment | Contact Us | FAQs | Site Map
Contact the Webmaster about any website related problems.
Best viewed at 800x600 with
IE 6.0 or Netscape 7.02 or Mozilla Firefox 1.0.6 or higher.
©2018 Realtek Semiconductor Corp. All rights reserved.