ICS9250YF-50LF-T中文資料瑞薩數(shù)據(jù)手冊PDF規(guī)格書

Output Features:

? 2 - CPUs @ 2.5V, up to 133MHz.

? 13 - SDRAM @ 3.3V, up to 133MHz.

? 3 - 3V66 @ 3.3V, 2x PCI MHz.

? 8 - PCI @ 3.3V

? 1 - 48MHz, @ 3.3V fixed

? 1 - 24/48MHz @ 3.3V

? 1 - REF @ 3.3V, 14.318MHz.

? 1 - IOAPIC @ 2.5V 16.67MHz.

Features:

? Support PC133 SDRAM.

? Up to 133MHz frequency support

? Support power management through PD#

? Spread spectrum for EMI control

(± 0.25% Center Spread or 0 to -0.5% down spread)

? Uses external 14.318MHz crystal

? FS pins for frequency select

Key Specifications:

? CPU Output Jitter: <250ps

? CPU Output Skew: <175ps

? PCI Output Skew: <500ps

? 3V66 Output Skew <175ps

? For group skew timing, please refer to the

Group Timing Relationship Table.