- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄67705 > ICS9148F-58LF (INTEGRATED DEVICE TECHNOLOGY INC) 133.3 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 PDF資料下載
參數(shù)資料
| 型號(hào)： | ICS9148F-58LF |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類(lèi)： | 時(shí)鐘產(chǎn)生/分配 |
| 英文描述： | 133.3 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | 0.300 INCH, SSOP-48 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大?。?/td> | 449K |
| 代理商： | ICS9148F-58LF |
當(dāng)前第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)
Integrated
Circuit
Systems, Inc.
General Description
Features
ICS9148-58
Block Diagram
Pentium is a trademark of Intel Corporation
I
2C is a trademark of Philips Corporation
Frequency Generator & Integrated Buffers for PENTIUM/ProTM
9148-58 Rev C 12/07/98
Pin Configuration
Generates the following system clocks:
-4CPU(2.5V/3.3V)upto100MHz.
-6PCI(3.3V)@ 33.3MHz
-2AGP(3.3V)@2x PCI
- 12 SDRAMs(3.3V) @ either CPU orAGP
-2REF(3.3V)@14.318MHz
Skew characteristics:
- CPU CPU<250ps
- SDRAM SDRAM < 250ps
- CPU SDRAM < 250ps
- CPU(early) PCI : 1-4ns
Spread Spectrum 0 to -5% down spread.
Serial I2C interface for Power Management, Frequency
Select, Spread Spectrum.
Efficient Power management scheme through PCI and CPU
STOPCLOCKS.
Uses external 14.318MHz crystal
48pin300milSSOP.
48-Pin SSOP
Power Groups
VDD1 = REF (0:1), X1, X2
VDD2 = PCICLK_F, PCICLK(0:5)
VDD3 = SDRAM (0:11), supply for PLL core,
24 MHz, 48MHz
VDD4=AGP(0:1)
VDDL=CPUCLK(0:3)
* Internal Pull-up Resistor of
240K to 3.3V on indicated inputs
The ICS9148-58 is the single chip clock solution for Desktop/
Notebook designs using the VIA MVP3 style chipset. It
provides all necessary clock signals for such a system.
Spread spectrum may be enabled through I2C programming.
Spread spectrum typically reduces system EMI by 8dB to
10dB. This simplifies EMI qualification without resorting to
board design iterations or costly shielding. The ICS9148-58
employs a proprietary closed loop design, which tightly
controls the percentage of spreading over process and
temperature variations.
Serial programming I2C interface allows changing functions,
stop clock programming and frequency selection. The SD_SEL
latched input allows the SDRAM frequency to follow the
CPUCLK frequency(SD_SEL=1) or the AGP clock
frequency(SD_SEL=0)
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICS9148F-58LF | 133.3 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| ICS9148F-58 | 133.3 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| ICS9148F-93LF | 100 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| ICS9148F-93 | 100 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| ICS9148GF12-T | 66.6 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS9148F-60 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:CPU System Clock Generator |
| ICS9148F-75-T | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:Frequency Generator & Integrated Buffers for Mother Boards |
| ICS9148F-PPP-T | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:Frequency Generator & Integrated Buffers for Mother Boards |
| ICS9148G-12 | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:Pentium/ProTM System Clock Chip |
| ICS9148M-46 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:CPU System Clock Generator |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。