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參數(shù)資料
| 型號(hào)： | ICS9248-78 |
| 英文描述： | Frequency Timing Generator for Pentium II Systems |
| 中文描述： | 頻率的奔騰II系統(tǒng)時(shí)序發(fā)生器 |
| 文件頁(yè)數(shù)： | 7/11頁(yè) |
| 文件大?。?/td> | 100K |
| 代理商： | ICS9248-78 |
7
ICS9248-185
CLK_STOP# Timing Diagram
CLK_STOP# is an asychronous input to the clock synthesizer. It is used to turn off the CPU clocks for low power operation.
CLK_STOP# is synchronized by the
ICS9248-185
. The minimum that the CPU clock is enabled (CLK_STOP# high pulse) is 100
CPU clocks. All other clocks will continue to run while the CPU clocks are disabled. The CPU clocks will always be stopped in
a low state and start in such a manner that guarantees the high pulse width is a full pulse. CPU clock on latency is less than 4
CPU clocks and CPU clock off latency is less than 4 CPU clocks.
Notes:
1. All timing is referenced to the internal CPU clock.
2. CLK_STOP# is an asynchronous input and metastable conditions may exist. This signal is synchronized
to the CPU clocks inside the ICS9248-185.
3. All other clocks continue to run undisturbed.
PCICLK
SDRAM
CPUCLK
CPUCLK _F
SDRAM_F
PCI_STOP# (High)
CLK_STOP#
INTERNAL
CPUCLK
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| ICS9248-81 | Frequency Generator & Integrated Buffers |
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| ICS9248-96 | 20-Bit Bus-Interface D-Type Latches With 3-State Outputs 56-SSOP -40 to 85 |
| ICS9248-97 | Frequency Timing Generator for PENTIUM II Systems |
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| ICS9248-80 | 制造商:ICS 制造商全稱:ICS 功能描述:General Purpose 133MHz System Clock |
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| ICS9248-87 | 制造商:ICS 制造商全稱:ICS 功能描述:Frequency Generator & Integrated Buffers for Celeron & PII/III⑩ |
| ICS9248-90 | 制造商:ICS 制造商全稱:ICS 功能描述:Frequency Generator & Integrated Buffers for PENTIUM/ProTM |
| ICS9248-92 | 制造商:ICS 制造商全稱:ICS 功能描述:Mobile Pentium IITM System Clock Chip |
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