Click to expand full text
www.DataSheet4U.com
Integrated Circuit Systems, Inc.
ICS9169C-41
Frequency Generator for PentiumPro™ Based Systems
General Description
The ICS9169C-41 is a Clock Synthesize/Driver chip for Pentium, PentiumPro or Cyrix 68x86 based motherboards using SDRAM. Features include four dual purpose I/O pins which provide extra CPU clocks and enable the part to be packaged in a low-cost 34-pin SSOP package. These four pins latch the select inputs at the internal Power-On Reset. Additionally, the device meets the Pentium and PentiumPro power-up stabilization, which requires that CPU and PCI clocks be stable within 2ms after power-up. The ICS9169C-41 clock outputs are designed for low EMI emissions.