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参数资料
| 型号： | ICS9148F-60LF |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 133.3 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28 |
| 封装： | SSOP-28 |
| 文件页数： | 1/10页 |
| 文件大小： | 411K |
| 代理商： | ICS9148F-60LF |
Integrated
Circuit
Systems, Inc.
General Description
Features
ICS9148-60
Block Diagram
Pentium/ProTM System Clock Chip
9148-60 Rev C 9/15/98
Pin Configuration
28 pin SOIC and SSOP
Pentium is a trademark on Intel Corporation.
Generates system clocks for CPU, PCI, IOAPIC ,
14.314 MHz, 48 and 24MHz.
Supports single or dual processor systems
Skew from CPU (earlier) to PCI clock 1 to 4ns
Separate 2.5V and 3.3V supply pins
2.5V outputs: CPU, IOAPIC
3.3V outputs: PCI, REF
No power supply sequence requirements
28 pin SOIC and SSOP
Spread Sectrum operation optional for PLL1
CPU frequencies to 100MHz are supported.
The ICS9148-60 is part of a reduced pin count two-chip clock
solution for designs using an Intel BX style chipset.
Companion SDRAM buffers are ICS9179-11 and 12.
There are two PLLs, with the first PLL capable of spread
spectrum operation. Spread spectrum typically reduces system
EMI by 8-10dB. The second PLL provides support for USB
(48MHz) and 24MHz requirements. CPU frequencies up to
100MHz are supported.
The I2C interface allows stop clock programming, frequency
selection, and spread spectrum operation to be programmed.
Clock outputs include two CPU (2.5V or 3.3V), seven PCI
(3.3V),oneREF(3.3V),oneIOAPIC(2.5Vor3.3V),one48MHz,
and one selectable 48_24MHz.
Ground Groups
GND = Ground Source Core
GND1=REF0,X1,X2
GND2=PCICLK_F,PCICLK(0:5)
GND3=48MHz
GNDL=CPUCLK(0:1)
Power Groups
VDD = Supply for PLL core
VDD1=REF0,X1,X2
VDD2=PCICLK_F,PCICLK(0:5)
VDD3=48MHz
VDDL=CPUCLK(0:1)
VDDL1=IOAPIC
ICS reserves the right to make changes in the device data identified in
this publication without further notice. ICS advises its customers to
obtain the latest version of all device data to verify that any
information being relied upon by the customer is current and accurate.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS9148F-75-T | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator & Integrated Buffers for Mother Boards |
| ICS9148F-PPP-T | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator & Integrated Buffers for Mother Boards |
| ICS9148G-12 | 制造商:ICS 制造商全称:ICS 功能描述:Pentium/ProTM System Clock Chip |
| ICS9148M-46 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CPU System Clock Generator |
| ICS9148M-47 | 制造商:ICS 制造商全称:ICS 功能描述:Pentium/ProTM System Clock Chip |
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