參數(shù)資料
型號： CY2277A
廠商： Cypress Semiconductor Corp.
英文描述： 6x86, K6 Clock Synthesizer/Driver for Desktop Mobile PCs with Intel 82430TX and 2 DIMMs or 3 SO-DIMMs
中文描述： 6x86，K6時鐘合成器/桌面移動與英特爾82430TX和2個DIMM或3，所以電腦驅動器- DIMM內存
文件頁數(shù)： 3/19頁
文件大?。?/td> 206K
代理商： CY2277A
CY2277A
Document #: 38-07332 Rev. *A
Page 3 of 19
CPU and PCI Clock Driver Strengths
Matched impedances on both rising and falling edges on
the output drivers
Output impedance: 25
(typical) measured at 1.5V
Notes:
3.
4.
On power-up, the default frequency on these outputs is 48 MHz.
Meets Intel USB clock requirements.
Function Table (-1, -1M, -7M, -12, -12M, -12I)
SEL
XTALIN
14.318 MHz
14.318 MHz
CPUCLK[0:3]
SDRAM[0:7]
60.0 MHz
66.67 MHz
PCICLK[0:5]
PCICLK_F
30.0 MHz
33.33 MHz
REF[0:1]
IOAPIC
14.318 MHz
14.318 MHz
USBCLK / IOCLK
[3]
48.0 MHz / 24.0 MHz
48.0 MHz / 24.0 MHz
0
1
Function Table (-3)
SEL
XTALIN
14.318 MHz
14.318 MHz
CPUCLK[0:3]
SDRAM[0:7]
33.33 MHz
66.67 MHz
PCICLK[0:5]
PCICLK_F
16.67 MHz
33.33 MHz
REF[0:1]
IOAPIC
14.318 MHz
14.318 MHz
USBCLK / IOCLK
[3]
48.0 MHz / 24.0 MHz
48.0 MHz / 24.0 MHz
0
1
Actual Clock Frequency Values (-1, -1M, -3, -7M,
-12, -12M, -12I)
Clock Output
CPUCLK,
SDRAM
CPUCLK,
SDRAM
USBCLK
[4]
IOCLK
Target
Frequency
(MHz)
66.67
Actual
Frequency
(MHz)
66.654
PPM
–
195
60.0
60.0
0
48.0
24.0
48.008
24.004
167
167
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相關代理商/技術參數(shù)
參數(shù)描述
CY2277APAC-12M 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:6x86, K6 Clock Synthesizer/Driver for Desktop Mobile PCs with Intel 82430TX and 2 DIMMs or 3 SO-DIMMs
CY2277APAC-1M 制造商:SPECTRALINEAR 制造商全稱:SPECTRALINEAR 功能描述:Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop/ Mobile PCs with Intel㈢ 82430TX and 2 DIMMs or 3 SO-DIMMs
CY2277APAC4 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC
CY2277APAC-7M 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:6x86, K6 Clock Synthesizer/Driver for Desktop Mobile PCs with Intel 82430TX and 2 DIMMs or 3 SO-DIMMs
CY2277APVC-1 制造商:SPECTRALINEAR 制造商全稱:SPECTRALINEAR 功能描述:Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop/ Mobile PCs with Intel㈢ 82430TX and 2 DIMMs or 3 SO-DIMMs
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