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参数资料
| 型号： | ICS9169CM-231 |
| 英文描述： | Frequency Generator for Pentium Based Systems |
| 中文描述： | 奔腾的频率发生器的系统 |
| 文件页数： | 1/8页 |
| 文件大小： | 298K |
| 代理商： | ICS9169CM-231 |
Integrated
Circuit
Systems, Inc.
General Description
Features
Eight selectable CPU clocks operate up to 83.3 MHz
Frequency selections include Turbo-mode speed of
68.5 MHz
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 to BUS clocks skew 1-4 ns (CPU early)
48 MHz clock for USB support & 24 MHz clock for FD.
Logic inputs latched at Power-On for frequency
selection saving pins as Input/Output
Integrated buffer outputs drive up to 30pF loads
3.0V - 3.7V supply range, CPU (1:8) outputs 2.5V
(2.375 - 2.6V) VDD option
28-pin SOIC or SSOP package
ICS9169C-231
Block Diagram
Frequency Generator for Pentium Based Systems
9169C-231RevB040697P
Pin Configuration
28-Pin SOIC or SSOP
Functionality
3.3V±10%, 0-70
°
C
Crystal (X1, X2) = 14.31818 MHz
Pentium is a trademark of Intel Corporation.
The
ICS9169C-231
is a low-cost frequency generator
designed specifically for Pentium and Pentium-Pro 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 68.5 MHz is available for Turbo-mode
of the 66.8 MHz CPU. The
ICS9169C-231
contains 8 CPU
clocks, 6 PCI clocks, 1 REF at 48MHz and 1 at 24MHz.
Either synchronous (CPU/2) or asynchronous (32 MHz)
PCI bus operation can be selected by latching data on
BSEL input.
ADDRESS
SELECT
FS2 FS1
0
0
0
0
1
1
1
1
CPU(1:8)
(MHz)
BUS (1:6)MHz
48MHz 24MHz
REF
FS0
0
1
0
1
0
1
0
1
BSEL=1 BSEL=0
25
30
33.4
32
27.5
37.5
41.7
34.25
0
0
1
1
0
0
1
1
50
60
66.8
75.9
55
75.9
83.3
68.5
32
32
32
32
32
32
32
32
48
48
48
48
48
48
48
48
24
24
24
24
24
24
24
24
REF
REF
REF
REF
REF
REF
REF
REF
VDD Groups:
VDD1 = X1, X2, REF/BSEL
VDD2 = CPU1-6
VDD3 = CPU7-8 & PLL Core
VDD4 = BUS1-6
VDD5 = 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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS9169CM-232 | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator for Pentium⑩ Based Systems |
| ICS9169CM-23LF | 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:28 系列:- 类型:时钟/频率发生器 PLL:是 主要目的:Intel CPU 服务器 输入:时钟 输出:LVCMOS 电路数:1 比率 - 输入:输出:3:22 差分 - 输入:输出:无/是 频率 - 最大:400MHz 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 85°C 安装类型:表面贴装 封装/外壳:64-TFSOP （0.240"，6.10mm 宽） 供应商设备封装:64-TSSOP 包装:管件 |
| ICS9169CM-23LFT | 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:28 系列:- 类型:时钟/频率发生器 PLL:是 主要目的:Intel CPU 服务器 输入:时钟 输出:LVCMOS 电路数:1 比率 - 输入:输出:3:22 差分 - 输入:输出:无/是 频率 - 最大:400MHz 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 85°C 安装类型:表面贴装 封装/外壳:64-TFSOP （0.240"，6.10mm 宽） 供应商设备封装:64-TSSOP 包装:管件 |
| ICS9169CM-27 | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator for Pentium™ Based Systems |
| ICS9169CM-271 | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator for Pentium⑩ Based Systems |
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