Output Features:
• 2 - CPUs @ 2.5V
• 13 - SDRAM @ 3.3V
• 3 - 3V66 @ 3.3V
• 8 - PCI @3.3V
• 1 - 24/48MHz@ 3.3V
• 1 - 48MHz @ 3.3V fixed
• 1 - REF @3.3V, 14.318MHz
Features/Benefits:
• Programmable output frequency.
• Programmable output divider ratios.
• Programmable output rise/fall time.
• Programmable output skew.
• Programmable spread percentage for EMI control.
• Watchdog timer technology to reset system
if system malfunctions.
• Programmable watch dog safe frequency.
• Support I2
C Index read/write and block read/write
operations.
• Uses external 14.318MHz crystal.
Key Specifications:
• CPU Output Jitter: <250ps
• IOAPIC Output Jitter: <500ps
• 48MHz, 3V66, PCI Output Jitter: <500ps
• Ref Output Jitter. <1000ps
• CPU Output Skew: <175ps
• PCI Output Skew: <500ps
• 3V66 Output Skew <175ps
• For group skew timing, please refer to the
Group Timing Relationship Table.