参数资料
型号: ICS951402YFLF-T
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟产生/分配
英文描述: 210 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48
封装: LEAD FREE, MO-118, SSOP-48
文件页数: 1/23页
文件大小: 289K
代理商: ICS951402YFLF-T
Integrated
Circuit
Systems, Inc.
ICS951402
Advance Information
0660—05/05/05
Block Diagram
Pin Configuration
Recommended Application:
ATI chipset, P4 system, Banias system
Output Features:
2 - Pairs of differential CPUCLKs (differential current mode)
1 - SDRAM @ 3.3V
8 - PCI @3.3V (selectable 33/66 MHz) (2 free-running)
2 - AGP @ 3.3V
2- 48MHz, @3.3V fixed.
1- 24/48MHz, @3.3V selectable by I
2C
(Default is 24MHz)
3- REF @3.3V, 14.318MHz.
Features/Benefits:
Support for Intel Banias power management features
Programmable output frequency, divider ratios, output rise/
falltime, 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.
Supports spread spectrum for EMI reduction; default is
spread spectrum ON.
Programmable Timing Control Hub for P4 processor
* These inputs have a 120K pull up to VDD.
** These inputs have a 120K pull down to GND.
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.
48-Pin TSSOP & SSOP
Power Groups
VDDCPU = CPU
VDDPCI = PCICLK_F, PCICLK
VDDSD = SDRAM
AVDD48 = 48MHz, 24MHz, fixed PLL
AVDD = Analog Core PLL
VDDAGP= AGP
VDDREF = Xtal, REF
Skew Requirements
VDDREF 1
48 VDDSDR
FS0/REF0 2
47 SDRAM_OUT
FS1/REF1 3
46 GNDSDR
FS2/REF2 4
45 CPU_STOP#*
GNDREF 5
44 CPUCLKT1
X1 6
43 CPUCLKC1
X2 7
42 VDDCPU
GND 8
41 GNDCPU
VDD 9
40 CPUCLKT0
*VttPWR_GD/PD# 10
39 CPUCLKC0
PCI66/33#_SEL 11
38 IREF
PCI_STOP#* 12
37 GND
VDDPCI 13
36 AVDD
FS3/PCICLK_F0 14
35 SCLK
FS4/PCICLK_F1 15
34 SDATA
PCICLK016
33GNDAGP
PCICLK117
32AGPCLK0
GNDPCI 18
31 AGPCLK1
VDDPCI 19
30 VDDAGP
PCICLK220
29AVDD48
PCICLK321
2848MHz_0
PCICLK422
2748MHz_1
PCICLK5 23
26 24_48MHz/SEL24_48#MHz**
GNDPCI 24
25 GND48
IC
S
9
514
02
PCI-PCI
<±350ps
AGP-AGP
<±350ps
CPU-AGP
<±500ps
CPU-PCI
<±500ps
CPU-SDRAM
<±1ns
AGP-PCI
AGP leading
<±1ns
I REF
CPU
DIVDER
PLL2
PLL1
Spread
Spectrum
48MHz (0:1)
24_48MHz
PCICLK (5:0)
AGP (1:0)
PCICLK_F (1:0)
2
1
6
3
X1
X2
XTAL
OSC
SDRAM
SDRAM_OUT
PCI
DIVDER
Stop
SDATA
SCLK
FS (4:0)
PD#
PCI_STOP#
CPU_STOP#
PD#/Vtt_PWRGD
PCI66/33#SEL
24_48SEL#
Control
Logic
Config.
Reg.
/ 2
REF (2:0)
AGP
DIVDER
Stop
2
CPUCLKT (1:0)
CPUCLKC (1:0)
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