W195B
Features
- Maximized EMI suppression using Cypress’s Spread Spectrum Technology
- Low jitter and tightly controlled clock skew
- Highly integrated device providing clocks required for CPU, core logic, and SDRAM
- Two copies of CPU clocks
- Nine copies of SDRAM clocks
- Eight copies of PCI clock
- One copy of synchronous APIC clock
- Two copies of 66-MHz outputs
- Two copies of 48-MHz outputs
- One copy of selectable 24- or 48-MHz clock
- One copy of double strength 14.31818-MHz reference clock
- Power-down control
- I2C interface for turning off unused clocks SDRAM, APIC, 48MHz Output Skew: 250 ps PCI Output Skew: 500 ps CPU to SDRAM Skew (@100 MHz): 4.5 to 5.5 ns CPU to 3V66 Skew (@ 66 MHz): 7.0 to 8.0 ns 3V66 to PCI Skew (3V66 lead): 1.5 to 3.5 ns PCI to APIC Skew: ± 0.5 ns Table 1....
