ICS9248-128
ICS9248-128 is Frequency Generator & Integrated Buffer manufactured by Renesas.
Integrated Circuit Systems, Inc.
Frequency Generator & Integrated Buffers
Remended Application: SIS 530/620 style chipset Output Features
:
- - 3 CPU @ 2.5V/3.3V up to 133.3 MHz.
- - 6 PCI @ 3.3V (including 1 free-running)
- - 13 SDRAMs @ 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 at 48MHz (3.3V)
- - 1 IOAPIC @ 2.5V / 3.3V Features
:
- Up to 133MHz frequency support
- Support power management: CPU, PCI, SDRAM stop and
Power down Mode from I2C programming.
- Spread spectrum for EMI control ( ± 0.25% center spread
& 0 to -0.5% down spread).
- Uses external 14.318MHz crystal
- FS pins for frequency select Key Specifications:
- CPU
- CPU<175ps
- SDRAM
- SDRAM < 350ps
- CPU- SDRAM < 500ps
- CPU(early)
- PCI : 1-4ns (typ. 2ns)
- PCI
- PCI <500ps
Pin Configuration
VDDR/X...
