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参数资料
| 型号： | ICS951402YFLF-T |
| 英文描述： | Programmable Timing Control Hub for P4 processor |
| 中文描述： | 可编程定时控制中心的P4处理器 |
| 文件页数： | 2/23页 |
| 文件大小： | 303K |
| 代理商： | ICS951402YFLF-T |
2
Integrated
Circuit
Systems, Inc.
ICS951402
Advance Information
0660—05/05/05
Pin Description
PIN NUMBER
1
2
3
4
5
6
7
8
9
PIN NAME
VDDREF
FS0/REF0
FS1/REF1
FS2/REF2
GNDREF
X1
X2
GND
VDD
TYPE
PWR
I/O
I/O
I/O
PWR
IN
OUT
PWR
PWR
DESCRIPTION
Ref, XTAL power supply, nominal 3.3V
Frequency select latch input pin / 14.318 MHz reference clock.
Frequency select latch input pin / 14.318 MHz reference clock.
Frequency select latch input pin / 14.318 MHz reference clock.
Ground pin for the REF outputs.
Crystal input, Nominally 14.318MHz.
Crystal output, Nominally 14.318MHz
Ground pin.
Power supply, nominal 3.3V
This 3.3V LVTTL input is a level sensitive strobe used to determine
when latch inputs are valid and are ready to be sampled. This is an
active high input. / Asynchronous active low input pin used to power
down the device into a low power state.
Selects all PCI clock frequencies to be 33Mhz or 66Mhz. 0 = 33Mhz , 1
= 66Mhz
Stops all PCICLKs besides the PCICLK_F clocks at logic 0 level, when
input low
Power supply for PCI clocks, nominal 3.3V
Frequency select latch input pin / 3.3V PCI free running clock output.
Frequency select latch input pin / 3.3V PCI free running clock output.
PCI clock output.
PCI clock output.
Ground pin for the PCI outputs
Power supply for PCI clocks, nominal 3.3V
PCI clock output.
PCI clock output.
PCI clock output.
PCI clock output.
Ground pin for the PCI outputs
Ground pin for the 48MHz outputs
24/48MHz clock output / Latched select input for 24/48MHz output.
0=48MHz, 1 = 24MHz.
48MHz clock output.
48MHz clock output.
Analog power for 48MHz outputs and fixed PLL core, nominal 3.3V
Power supply for AGP clocks, nominal 3.3V
AGP clock output
AGP clock output
Ground pin for the AGP outputs
Data pin for SMBus circuitry, 5V tolerant.
Clock pin of SMBus circuitry, 5V tolerant.
3.3V Analog Power pin for Core PLL
Ground pin.
This pin establishes the reference current for the differential current-
mode output pairs. This pin requires a fixed precision resistor tied to
ground in order to establish the appropriate current. 475 ohms is the
standard value.
10
*VttPWR_GD/PD#
IN
11
PCI66/33#_SEL
IN
12
PCI_STOP#*
IN
13
14
15
16
17
18
19
20
21
22
23
24
25
VDDPCI
FS3/PCICLK_F0
FS4/PCICLK_F1
PCICLK0
PCICLK1
GNDPCI
VDDPCI
PCICLK2
PCICLK3
PCICLK4
PCICLK5
GNDPCI
GND48
PWR
I/O
I/O
OUT
OUT
PWR
PWR
OUT
OUT
OUT
OUT
PWR
PWR
26
24_48MHz/SEL24_48#MHz**
I/O
27
28
29
30
31
32
33
34
35
36
37
48MHz_1
48MHz_0
AVDD48
VDDAGP
AGPCLK1
AGPCLK0
GNDAGP
SDATA
SCLK
AVDD
GND
OUT
OUT
PWR
PWR
OUT
OUT
PWR
I/O
IN
PWR
PWR
38
IREF
OUT
39
CPUCLKC0
OUT
Complementary clock of differential pair CPU outputs. This clock is 180
degrees out of phase with the SDRAM clock.
40
CPUCLKT0
OUT
True clock of differential pair CPU outputs. This clock is in phase with
the SDRAM clock
Ground pin for the CPU outputs
Supply for CPU clocks, 3.3V nominal
41
42
GNDCPU
VDDCPU
PWR
PWR
43
CPUCLKC1
OUT
Complementary clock of differential pair CPU outputs. This clock is 180
degrees out of phase with the SDRAM clock.
44
CPUCLKT1
OUT
True clock of differential pair CPU outputs. This clock is in phase with
the SDRAM clock
45
46
47
48
CPU_STOP#*
GNDSDR
SDRAM_OUT
VDDSDR
IN
Stops all CPUCLK besides the free running clocks
Ground pin for the SDRAM outputs.
SDRAM seed clock output for external buffer
Supply for SDRAM clocks, nominal 3.3V.
PWR
OUT
PWR
相关PDF资料 |
PDF描述 |
|---|---|
| ICS951402YGLF-T | Programmable Timing Control Hub for P4 processor |
| ICS951413 | Programmable System Clock Chip for ATI RS400 P4-based Systems |
| ICS951413YGLFT | Programmable System Clock Chip for ATI RS400 P4-based Systems |
| ICS952011 | Programmable Timing Control Hub for P4 processor |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS951402YGLF-T | 制造商:ICS 制造商全称:ICS 功能描述:Programmable Timing Control Hub for P4 processor |
| ICS951403 | 制造商:ICS 制造商全称:ICS 功能描述:AMD-K7 System Clock Chip |
| ICS951403YFLF-T | 制造商:ICS 制造商全称:ICS 功能描述:AMD-K7 System Clock Chip |
| ICS951403YGLF-T | 制造商:ICS 制造商全称:ICS 功能描述:AMD-K7 System Clock Chip |
| ICS951411 | 制造商:ICS 制造商全称:ICS 功能描述:System Clock Chip for ATI RS400 P4TM-based Systems |
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