Features

• CPU outputs are stronger drive for multiple loads

per pin (ie CPU and NB on one pin)

• Generates system clocks for CPU, IOAPIC,

SDRAM, PCI, plus 14.314 MHz REF(0:1), USB,

Plus Super I/O

• Supports single or dual processor systems

• I2C serial configuration interface provides output

clock disabling and other functions

• MODE input pin selects optional power

management input control pins

• Two fixed outputs separately selectable as 24 or

48MHz

• Separate 2.5V and 3.3V supply pins

• 2.5V or 3.3V outputs: CPU, IOAPIC

• 3.3V outputs: SDRAM, PCI, REF, 48/24 MHz

• CPU 3.3_2.5# logic pin to adjust output strength

• No power supply sequence requirements

• Uses external 14.318MHz crystal

• 48 pin 300 mil SSOP and 240 mil TSSOP

• Output enable register