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參數(shù)資料
| 型號(hào)： | CY2278A |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | PentiumII Clock Synthesizer/Driver for Mobile PCs with Intel 82430TX and No SDRAM(帶英特爾82430TX和2個(gè)DIMM 或3個(gè)SO-DIMM 的應(yīng)用于移動(dòng)PC機(jī)的奔騰II6x86, K6 時(shí)鐘合成器/驅(qū)動(dòng)器) |
| 中文描述： | PentiumII時(shí)鐘合成器/與英特爾82430TX和無內(nèi)存（帶英特爾82430TX內(nèi)存和2個(gè)或3個(gè)SO - DIMM插槽的應(yīng)用于移動(dòng)電腦機(jī)的奔騰II6x86，K6時(shí)鐘合成器便攜式電腦驅(qū)動(dòng)器/驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 8/11頁 |
| 文件大?。?/td> | 153K |
| 代理商： | CY2278A |
CY2278A
8
CPU_RUN Timing
[11, 12]
PCI_RUN Timing
[13, 14]
USB_RUN Timing
[15]
PWR_DWN Timing
Notes:
11. CPUCLK on and CPUCLK off latency is 2 or 3 external CPUCLK cycles.
12. CPU_RUN may be applied asynchronously. It is synchronized internally.
13. PCICLK on and PCICLK off latency is 1 rising edge of the external PCICLK.
14. PCI_RUN may be applied asynchronously. It is synchronized internally.
15. USBCLK on and USBCLK off latency is 2 USBCLK cycles.
Switching Waveforms
(continued)
CPUCLK/ XCPUCLK
(Internal)
PCICLK
(Internal)
(FPCICLK
CPU_RUN
CPUCLK
(External)
XCPUCLK_F
(Free-Running)
PCICLK
(Internal)
(FrPCICLK
PCI_RUN
PCICLK
(External)
USBCLK
(Internal)
USB_RUN
USBCLK
(External)
CPUCLK
(Internal)
PCICLK
(Internal)
PWR_DWN
PCICLK
(External)
CPUCLK
(External)
VCO
Crystal
Shaded section on the VCO and Crystal waveforms indicates that the VCO and crystal oscillator are active, and there is a valid clock.
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