General Description

The ICS9133Xis designed to generate clocks for all 286, 386, 486, Pentium and RISC-based motherboards, including laptops and notebook computers. The only external components required are a 32.768 kHz crystal and decoupling capacitors.

Features

• Single 32.768 kHz crystal generates all PC motherboard clocks

• Cost-reduced version of popular ICS9132

• Contains internal crystal load capacitors and feedback bias

• 3 independent clock generators

• Generates CPU clocks from 12.5 to 100 MHz

• Up to 7 output clocks

• Separate VDD for 32 kHz clock

• Output enable tristates outputs

• Power-down options available

• Operates from 3.3V or 5.0V supply

• Operates up to 66 MHz at 3.3V

• Skew controlled 1X and 2X CPU clocks

• 20-pin PDIP or SOIC package