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參數(shù)資料
| 型號： | C9827HY |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | High Performance Pentium 4 Clock Synthesizer |
| 中文描述： | 200 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56 |
| 封裝： | SSOP-56 |
| 文件頁數(shù)： | 16/25頁 |
| 文件大?。?/td> | 171K |
| 代理商： | C9827HY |
C9827H
High Performance Pentium 4 Clock Synthesizer
Cypress Semiconductor Corporation
http://www.cypress.com
Document#: 38-07106 Rev. *A
12/26/2002
Page 16 of 25
Approved Product
CPU_STP# - Assertion (transition from logic ‘1’ to logic ‘0’)
When CPU_STP# pin is asserted, all CPU outputs that are set with the SMBus configuration to be stoppable via
assertion of CPU_STP# will be stopped after being sampled by 2 falling CPU clock edges. The final state of the
stopped CPU signals is CPU = high and CPU0# = Low. There is no change to the output drive current values during
the stopped state. The CPU is driven high with a current value equal to (Mult 0 ‘select’) x (Iref), and the CPU# signal
will not be driven. Due to external pulldown circuitry CPU# will be low during this stopped state.
CPU_STP#
CPU
CPU#
Assertion CPU_STP# Waveform Figure
CPU_STP# Functionality Table
CPU_STP#
1
0
CPU#4
Normal
Iref*Mult
CPU
Normal
Float
DRCG
66M
66M
66CLK(0:2)
66Input
66Input
PCI_F/PCI
66Input/2
66Input/2
PCI
USB/DOT
48M
48M
66Input/2
66Input/2
CPU_STP# De-assertion (transition from logic ‘0’ to logic ‘1’)
The de-assertion of the CPU_STP# signal will cause all CPU outputs that were stopped to resume normal operation
in a synchronous manner. Synchronous manner meaning that no short or stretched clock pulses will be produces
when the clock resumes. The maximum latency from the de-assertion to active outputs is no more than 2 CPU clock
cycles.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| C9827JT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU SYSTEM CLOCK GENERATOR|TSSOP|56PIN|PLASTIC |
| C9827JY | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU SYSTEM CLOCK GENERATOR|SSOP|56PIN|PLASTIC |
| C982P | 制造商:PERKINELMER 制造商全稱:PerkinElmer Optoelectronics 功能描述:CHANNEL PHOTO MULTIPLIER |
| C983 | 制造商:PERKINELMER 制造商全稱:PerkinElmer Optoelectronics 功能描述:CHANNEL PHOTO MULTIPLIER |
| C9832HT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU SYSTEM CLOCK GENERATOR|TSSOP|56PIN|PLASTIC |
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