ICS9169A-70

Features:

• 9 PCI outputs selectable from 30 to 66.6MHz
• 3 SCSI outputs, selectable from 10 to 80MHz
• 500ps skew window for all synchronous clock edges
• Integrated buffer outputs drive up to 30pF loads
• 500ps output to output skew window
• Buffers drive 30pF loads nominally 0.8V/ns skew rate
• 3.0V - 3.7Vsupply range
• 32-pin SOIC package
• 48 MHz clock for USB support and 24 MHz clock for FD


Pinout




Specifications

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7.0 V
Logic  Inputs . . . . . . . . . . . . . . . . . . . GND 0.5 V to  VDD +0.5 V
Ambient Operating Temperature . . . . . . . . . . . . .  0°C to +70°C
Storage Temperature . . . . . . . . . . . . . . . . . . 65°C  to +150°C


Description

The  ICS9169A-70 is a low-cost frequency generator designed specifically for workstation or PC system clocks. The integrated buffer minimizes skew and provides all the clocks required. A 14.318 MHz XTAL oscillator provides the reference clock to generate standard Pentium frequencies. The CPU clock makes gradual frequency transitions without violating the PLL timing of internal microprocessor clock multipliers.