參數(shù)資料
型號(hào): ICS950905YFLFT
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: XO, clock
英文描述: 200.4 MHz, OTHER CLOCK GENERATOR, PDSO48
封裝: MO-118, SSOP-48
文件頁數(shù): 1/18頁
文件大小: 206K
代理商: ICS950905YFLFT
Integrated
Circuit
Systems, Inc.
ICS950905
Advance Information
Block Diagram
950905 Rev - 11/26/01
Pin Configuration
Recommended Application:
VIA P4X266 chipset with PC133 or DDR memory.
Output Features:
2 - Pair of differential CPU clocks @ 3.3V
1 - Pair of differential push pull CPU_CS clocks @ 2.5V
3 - AGP @ 3.3V
9 - PCI @ 3.3V
1- IOAPIC @ 2.5V
1 - 48MHz @ 3.3V fixed
1 - 24_48MHz @ 3.3V
1 - REF @ 3.3V, 14.318MHz
Features/Benefits:
Programmable output frequency.
Programmable output divider ratios.
Programmable output rise/fall time.
Programmable output skew.
Programmable spread percentage for EMI control.
Watchdog timer technology to reset system
if system malfunctions.
Programmable watch dog safe frequency.
Support I
2C Index read/write and block read/write
operations.
For DDR and or PC133 SDRAM system use ICS93718
as the memory buffer.
Uses external 14.318MHz crystal.
Key Specifications:
CPU_CS - CPU0: <±250ps
CPU_CS - AGP: <±250ps
PCI - PCI: <500ps
CPU - PCI: Min = 1.0ns, Typ = 2.0ns, Max = 4.0ns
Programmable Timing Control Hub for P4
1. These outputs have 2X drive strength.
* These inputs have a internal Pull-up resistor
of 120K to VDD
** These inputs have a internal pull-down to GND
48-Pin 300-mil SSOP
Frequency Table
I REF
PLL2
PLL1
Spread
Spectrum
48MHz
24_48MHz
IOAPIC
PCICLK (7:0)
AGPCLK (2:0)
RESET#
PCICLK_F
3
X1
X2
XTAL
OSC
CPU
DIVDER
CPU
DIVDER
IOAPIC
DIVDER
PCI
DIVDER
AGP
DIVDER
Stop
SEL24_48
SDATA
SCLK
FS (3:0)
PD#
PCI_STOP#
CPU_STOP#
MULTI_SEL
Vtt_PWRGD#
Control
Logic
Config.
Reg.
/ 2
REF0
CPUCLKT_(1:0)
CPUCLKC_(1:0)
CPUCLK_PPT
CPUCLK_PPC
WDEN
WDTB
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ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and other specifications are design goals.
ICS reserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners.
1**SEL24_48/REF0
VDDREF
GND
X1
X2
VDD48
*FS3/48MHz
*FS2/24_48MHz
GND
*FS0/PCICLK_F
**FS1/PCICLK0
*MULTI_SEL/PCICLK1
GND
PCICLK2
PCICLK3
VDDPCI
PCICLK4
PCICLK5
PCICLK6
GND
PCICLK7
*PD#
AGPCLK0
VDDAGP
*WDTB/
**WDEN/
VDDLAPIC
GND
N/C
IOAPIC
GND
VDDCPU_PP (2.5V)
CPUCLK_PPT
CPUCLK_PPC
CPUCLKT_0
CPUCLKC_0
VDDCPU (3.3V)
I REF
GND
CPUCLKT_1
CPUCLKC_1
Vtt_PWRGD#
CPU_STOP#*
PCI_STOP#*
RESET#
SDATA
SCLK
AGPCLK2
AGPCLK1
GND
ICS950905
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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24
48
47
46
45
44
43
42
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