Features
+ Generates the following system clocks:
-3 CPU(2.5V/3.3V) up to 133.3MHz.
-6 PCI(3.3V) (including 1 free-running)
- 13 SDRAMSs(3.3V) up to 133.3MHz.
-3 REF (3.3V) @ 14.318MHz
-1 clock @ 24/14.3 MHz selectable output for SIO
-1 Fixed clock at48MHz (3.3V)
-1 IOAPIC@2.5V/3.3V
+ Skew characteristics:
- CPU - CPU<175ps
- SDRAM — SDRAM < 250ps
-CPU-SDRAM < 500ps
-CPU(early)—PCI: 1-4ns (typ. 3ns)
- PCI - PCI <500ps
+ Supports Spread Spectrum modulation +0.25 & £0.5%
center spread
+ Serial 1'C interface for Power Management, Frequency
Select, Spread Spectrum.
« Efficient Power management scheme through PCI,
SDRAM, CPU STOP CLOCKS and PD#.
+ Uses external 14.318MHz crystal
+ 48 pin 300mil SSOP.