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参数资料
| 型号： | ICS9250YF-23 |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 166.67 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56 |
| 封装： | 0.300 INCH, MO-118, SSOP-56 |
| 文件页数： | 1/15页 |
| 文件大小： | 184K |
| 代理商： | ICS9250YF-23 |
Integrated
Circuit
Systems, Inc.
ICS9250-23
0391B—09/18/03
Block Diagram
Pin Configuration
Recommended Application:
810/810E type chipset
Output Features:
2 - CPUs @ 2.5V, up to 166MHz.
13 - SDRAM @ 3.3V, up to 166MHz.
2 - 3V66 @ 3.3V, 2x PCI MHz.
8 - PCI @3.3V.
1 - 48MHz, @3.3V fixed.
1 - 24MHz @ 3.3V
2 - REF @3.3V, 14.318MHz.
Features:
Up to 166MHz frequency support
Support power management through PD#.
Spread spectrum for EMI control (± 0.25%)
center spread.
Uses external 14.318MHz crystal
FS pins for frequency select
Key Specifications:
CPU Output Jitter: <250ps
IOAPIC Output Jitter: <500ps
48MHz, 3V66, PCI Output Jitter: <500ps
Ref Output Jitter. <1000ps
CPU Output Skew: <175ps
PCI Output Skew: <500ps
3V66 Output Skew <175ps
For group skew timing, please refer to the
Group Timing Relationship Table.
Frequency Generator & Integrated Buffers for Celeron & PII/III
56-Pin 300 mil SSOP
1. These pins will have 2X drive strength.
* 120K ohm pull-up to VDD on indicated inputs.
Power Groups
GNDREF, VDDREF = REF, Crystal
GND3V66, VDD3V66 = 3V66
GNDPCI, VDDPCI = PCICLKs
GNDCOR, VDDCOR = PLLCORE
GND48, VDD48 = 48
GNDSDR, VDDSDR = SDRAM
GNDLCPU, VDDLCPU = CPUCLK
GNDLPCI, VDDLAPIC = IOAPIC
SDATA
SCLK
IC
2
{
PLL2
PLL1
Spread
Spectrum
48MHz
24MHz
CPUCLK [1:0]
SDRAM [11:0]
IOAPIC
PCICLK [7:0]
SDRAM_F
3V66 [1:0]
X1
X2
XTAL
OSC
CPU
DIVDER
SDRAM
DIVDER
IOAPIC
DIVDER
PCI
DIVDER
3V66
DIVDER
FS[4:0]
PD#
Control
Logic
Config.
Reg.
/ 2
REF[1:0]
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS9250YF-25-T | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator & Integrated Buffers for Celeron & PII/III⑩ |
| ICS9250YF-26-T | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator & Integrated Buffers for Celeron & PII/III⑩ |
| ICS9250YF-27-T | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator & Integrated Buffers for Celeron & PII/III⑩ |
| ICS9250YF-28-T | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator & Integrated Buffers for Celeron & PII/III⑩ |
| ICS9250YF-29-T | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator & Integrated Buffers for Celeron & PII/III⑩ |
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