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参数资料
| 型号： | ICS9250YF-08 |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 150 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56 |
| 封装： | SSOP-56 |
| 文件页数： | 15/15页 |
| 文件大小： | 239K |
| 代理商： | ICS9250YF-08 |
9
ICS9250-08
0378I—07/17/03
CPU_STOP# Timing Diagram
CPUSTOP# is an asychronous input to the clock synthesizer. It is used to turn off the CPUCLKs for low power operation.
CPU_STOP# is synchronized by the ICS9250-08. All other clocks will continue to run while the CPUCLKs are disabled.
The CPUCLKs will always be stopped in a low state and start in such a manner that guarantees the high pulse width
is a full pulse. CPUCLK on latency is less than 4 CPUCLKs and CPUCLK off latency is less than 4 CPUCLKs.
Notes:
1. All timing is referenced to the internal CPUCLK.
2. CPU_STOP# is an asynchronous input and metastable conditions may exist. This signal is synchronized to
the CPUCLKs inside the ICS9250-08.
3. IOAPIC output is stopped Glitch Free by CPUSTOP# going low.
4. PCI_STOP# is shown in a high (true) state.
5. All other clocks continue to run undisturbed.
Notes:
1. All timing is referenced to the Internal CPUCLK (defined as inside the device.)
2. PCI_STOP# is an asynchronous input, and metastable conditions may exist. This signal is required to be synchronized
inside the device.
3. All other clocks continue to run undisturbed.
4. CPU_STOP# is shown in a high (true) state.
PCI_STOP# Timing Diagram
PCI_STOP# is an asynchronous input to the ICS9250-08. It is used to turn off the PCICLK (0:5) clocks for low power
operation. PCI_STOP# is synchronized by the ICS9250-08 internally. PCICLK (0:5) clocks are stopped in a low state
and started with a full high pulse width guaranteed. PCICLK (0:5) clock on latency cycles are only one rising PCICLK
clock off latency is one PCICLK clock.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS9250YF-09-T | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Timing Generator for PENTIUM II Systems |
| ICS9250YF-10 | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Timing Generator for Pentium II Systems |
| ICS9250YF-11-T | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Timing Generator for PENTIUM II/III Systems |
| ICS9250YF-12-T | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Timing Generator for PENTIUM II/III Systems |
| ICS9250YF-13 | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator & Integrated Buffers for PENTIUM/ProTM |
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