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参数资料
| 型号： | ICS9169CM-272 |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 83.3 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO32 |
| 封装： | SOIC-32 |
| 文件页数： | 1/8页 |
| 文件大小： | 369K |
| 代理商： | ICS9169CM-272 |
Integrated
Circuit
Systems, Inc.
General Description
Features
ICS9169C-272
Block Diagram
Frequency Generator for Pentium Based Systems
9169C-272RevC060297P
Pin Configuration
The ICS9169C-272 is a low-cost frequency generator
designed specifically for Pentium based chip set systems.
The integrated buffer minimizes skew and provides all the
clocks required. A 14.318 MHz XTAL oscillator provides
the reference clock to generate standard Pentium frequencies.
The CPU clock makes gradual frequency transitions without
violating the PLL timing of internal microprocessor clock
multipliers.A raised frequency setting of 68.5MHz is available
in the Turbo-mode of the 66.8MHz CPU. The ICS9169C-272
contains 12 CPU clocks, 4 PCI clocks, 1 REF at 48MHz and 1 at
24MHz.
The twelve CPU clock outputs provide sufficient clocks for
the CPU, chip set, memory and up to two DIMM connectors
(with four clocks to each DIMM). Either synchronous(CPU/
2) or asynchronous (32 MHz) PCI busoperation can be selected
by latching data on the BSEL input
32-Pin SOIC/SOJ
Pentium is a trademark of Intel Corporation.
Twelve selectable CPU clocks operate up to 83.3MHz
Maximum CPU jitter of ± 200ps
Six BUS clocks support sync or async bus operation
250ps skew window for CPU outputs, 500ps skew
window for BUS outputs
CPU clocks BUS clocks skew 1-4ns (CPU early)
Integrated buffer outputs drive up to 30pF loads
3.0V - 3.7V supply range, CPU(1:6) outputs 2.5V(2.375-
2.62V) VDD option
32-pin SOIC/SOJ package
Logic inputs latched at Power-On for frequency selection
saving pins as Input/Output
48 MHz clock for USB support and 24 MHz clock
for FD.
ADDRES S
S ELECT
C P U (1:12)
(M H z)
B U S (1:6)M H z
48M H z
24M H z
R E F
FS2 FS1
FS0
BSEL=1
BSEL=0
00
0
50
25
32
48
24
REF
00
1
60
30
32
48
24
REF
0
1
0
66.8
33.4
32
48
24
REF
0
1
75.9
32
48
24
REF
1
0
55
27.5
32
48
24
REF
1
0
1
75.9
37.5
32
48
24
REF
1
0
83.3
41.7
32
48
24
REF
1
68.5
34.25
32
48
24
REF
VDD Groups:
VDD1 = X1, X2, REF/BSEL
VDDC1 = CPU1-6
VDDC2 = CPU7-12 & PLL Core
VDDB = BUS1-6
VDDF = 48/24 MHz
Latched Inputs:
L1 = BSEL
L2 = FS0
L3 = FS1
L4 = FS2
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.
Functionality
3.3V±10%,0-70
°C
Crystal (X1, X2) = 14.31818 MHz
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS9169CM-273 | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator for Pentium⑩ Based Systems |
| ICS9169F-01 | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator and Integrated Buffers for Intel Pentium and Pentium ProTM mPs |
| ICS9169F-03 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CPU System Clock Generator |
| ICS9169M-01 | 功能描述:IC FREQUENCY GENERATOR 28-SOIC RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:- 标准包装:1,500 系列:- 类型:时钟缓冲器/驱动器 PLL:是 主要目的:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 电源电压:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:带卷 (TR) 其它名称:93786AFT |
| ICS9169M-01LF | 功能描述:IC FREQUENCY GENERATOR 28-SOIC RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:- 标准包装:1,500 系列:- 类型:时钟缓冲器/驱动器 PLL:是 主要目的:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 电源电压:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:带卷 (TR) 其它名称:93786AFT |
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