9250YF-27LF-T中文资料瑞萨数据手册PDF规格书

Output Features:

• 3 CPU (2.5V) (up to 133MHz achievable through I2C)

• 9 SDRAM (3.3V) (up to 133MHz achievable through I2

C)

• 7 PCI (3.3 V) @33.3MHz

• 2 IOAPIC (2.5V) @ 33.3 MHz

• 3 Hublink clocks (3.3 V) @ 66.6 MHz

• 2 (3.3V) @ 48 MHz (Non spread spectrum)

• 1 REF (3.3V) @ 14.318 MHz

Features:

• Supports spread spectrum modulation, 0 to -0.5 down spread.

• I2

C support for power management

• Efficient power management scheme through PD#

• Uses external 14.138 MHz crystal

• Alternate frequency selections available through I2C control.