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參數(shù)資料
| 型號： | ICS9147F-01 |
| 英文描述： | Frequency Generator & Integrated Buffers for PENTIUMTM |
| 中文描述： | 頻率發(fā)生器 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 442K |
| 代理商： | ICS9147F-01 |
Integrated
Circuit
Systems, Inc.
General Description
The
ICS9147-01
generates all clocks required for high
speed RISC or CISC microprocessor systems such as Intel
PentiumPro. Two bidirectional I/O pins (FS1,FS2) are latched
at power-on to the functionality table, with FS0 selectable
in real-time to toggle between conditions. The inputs
provide for tristate and test mode conditions to aid in
system level testing. These multiplying factors can be
customized for specific applications. Glitch-free stop
clockcontrols are provided for CPU clocks and BUS clocks.
Features
Four copies of CPU clock
Six SDRAM (3.3 V TTL), usable as AGP clocks
Seven copies of BUS clock (synchronous with CPU
clock/2 or CPU/2.5 for 75 and 83.3 MHz CPU)
CPU clocks to BUS clocks skew 1-4ns (CPU early)
One IOAPIC clock @14.31818 MHz
Two copies of Ref. clock @14.31818 MHz
One each 48/24 MHz (3.3 V TTL)
This device is configured into the
Mobile
mode for
power management of Intel 430 TX
Ref. 14.31818 MHz Xtal oscillator input
Separate 66/60 MHz select pin (LSB of select pins)
Separate V
DD2
for four CPU and single IOAPIC output
buffers to allow 2.5V output (or Std. Vdd)
Power Management Control Input pins
3.0V – 3.7V supply range w/2.5V compatible outputs
48-pin SSOP package
ICS9147-01
Block Diagram
Pentium is a trademark of Intel Corporation
Frequency Generator & Integrated Buffers for PENTIUM
TM
9147-01Rev B 04/25/01
Pin Configuration
High drive BUS and SDRAM outputs typically provide
greater than 1 V/ns slew rate into 30pF loads. CPU outputs
typically provide better than 1V/ns slew rate into 20pF
loads while maintaining
50 ±
5% duty cycle. The REF clock
outputs typically provide better than 0.5V/ns slew rates.
Seperate buffers supply pins VDD2 allow for 3.3V or
reduced voltage swing (from 2.9 to 2.5V) for CPU (1:4) and
IOAPIC outputs.
48-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.
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| ICS9147-09 | Frequency Generator & Integrated Buffers for 686 Series CPUs |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS9147F-03 | 制造商:INT_CIR_SYS 功能描述: |
| ICS9147F-06 | 制造商:ICS 制造商全稱:ICS 功能描述:Frequency Generator & Integrated Buffers for PENTIUMTM |
| ICS9147F-06T | 制造商:ICS 功能描述: |
| ICS9147F-08 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator |
| ICS9147F-08T | 制造商:ICS 功能描述: |
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