参数资料
型号: ICS9159F-12LF
元件分类: 时钟产生/分配
英文描述: 66.47 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28
封装: 0.209 INCH, SSOP-28
文件页数: 1/5页
文件大小: 274K
代理商: ICS9159F-12LF
Integrated
Circuit
Systems, Inc.
General Description
Features
ICS9159-12
Frequency Generator and Buffers for Mobile Pentium Systems
ICS9159-12RevB071797P
Block Diagram
The ICS9159-12 generates all clocks required for mobile
microprocessor systems based on Pentium/Mobile Triton
chip sets. Three different reference frequency multiplying
factors are externally selectable with smooth frequency
transitions. These multiplying factors can be customized
for specific plications. A test mode is provided to drive all
clocks directly.
High drive BCLK outputs provide greater than 1V/ns slew
rate into 30pF loads. PCLK outputs provide better than 1V/
ns slew rate into 20pF loads while maintaining ±5% duty
cycle.
Generates 14 clocks including processor, disk
and reference
Meets all Pentium/Mobile Triton 82430MX
requirments
Independent buffers provide 4 and 6 clock copies
Buffered clocks skew matched to ±250ps
Buffer inputs are 5V tolerant
Test clock mode eases system design
Selectable multiplying and processor/bus ratios
Custom configurations available
3.0V- 5.5V supply range
28pin, .209" SSOP package
Pentium is a trademark of Intel Corporation.
FS1
FS0
*VCO
X1, REF
(MHz)
CPU (MHz)
0
118/17*X1
14.318
50 (49.69)
0
1
65/7*X1
14.318
66.6 (66.47)
1
0
92/11*X1
14.318
60 (59.87)
1
Test mode
TCLK
TCLK/2
CPU
24M
VCO/2
24 MHz
TCLK/2
TCLK/4
Functionality
*VCO range is limited form 60 - 200 MHz.
Pin Configuration
28-Pin SSOP
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.
相关PDF资料
PDF描述
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