ICS9169-01

Features:

• Generates four processor, six bus, three 14.318 MHz and one 48 MHz clock for ISA bus, audio, super I/O and bus bridge devices
• Supports the Intel MARS chip set
• Synchronous clocks skew matched to 250ps window on PCLKs and 500ps window on BCLKs
• Test clock mode eases system design
• Selectable multiplying ratios
• Custom configurations available
• Output frequency ranges to 100 MHz (depending on option)
• 3.0V - 5.5 V supply range
• 28-pin SOIC and 28-pin SSOP (209-mil) packages


Application

• Ideal for high-speed RISC or CISC systems such as 486, Pentium, Pentium Pro, PowerPC, etc.


Pinout




Specifications

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


Description

The ICS9169-01 generates all clocks required for high speed RISC or CISC microprocessor systems such as 486, Pentium/Pentium Pro™, PowerPC™, etc. Four different reference frequency multiplying factors are externally selectable with smooth frequency transitions. These multiplying factors can be customized for specific applications. A test mode is provided to drive all clocks directly.

High drive BCLK of the ICS9169-01 outputs typically provide greater than 1V/ns slew rate into 30pF loads. PCLK outputs typically provide better than 1V/ns slew rate into 20pF loads while maintaining 50±5% duty cycle. The REF clock outputs typically provide better than 0.5V/ns slew rates.