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參數(shù)資料
| 型號： | CY2272 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | Pentium 6x86, K6 Clock Synthesizer/Driver for Mobile PCs with Intel 82430TX or Ali IV/V+ and 3 SO-DIMMs(帶英特爾82430TX或 Ali IV/V+ 和3個(gè) SO-DIMM的應(yīng)用于移動PC機(jī)的奔騰6x86, K6 時(shí)鐘合成器/驅(qū)動器) |
| 中文描述： | 奔騰6x86，K6時(shí)鐘合成器/與英特爾82430TX或阿里四便攜式電腦驅(qū)動器/ V和3 SO - DIMM內(nèi)存（帶英特爾82430TX或阿里四音頻/視頻和3個(gè)SO - DIMM插槽的應(yīng)用于移動電腦機(jī)的奔騰6x86，K6時(shí)鐘合成器/驅(qū)動器） |
| 文件頁數(shù)： | 2/12頁 |
| 文件大小： | 206K |
| 代理商： | CY2272 |
CY2272
2
Pin Summary
Name
Pins
Description
V
DDQ3
V
DDCPU
AV
DD
V
SS
XTALIN
[2]
XTALOUT
[2]
7, 14, 19, 30, 36, 48
3.3V Digital voltage supply
42
CPU Digital voltage supply, 2.5V or 3.3V
1
Analog voltage supply, 3.3V
3, 9, 16, 18, 22, 27, 33, 39, 45
Ground
4
Reference crystal input
5
Reference crystal feedback
PCI_STOP
28
Active LOW control input to stop PCI clocks (except free-running PCI
clock)
CPU_STOP
29
Active LOW control input to stop CPU clocks
PWR_DWN
20
Active LOW control input to power down device
SDRAM[0–5]
38, 37, 35, 34, 32, 31
SDRAM clock outputs
SEL0
26
CPU frequency select input, bit 0 (See table below.)
SEL1
21
CPU frequency select input, bit 1 (See table below.)
SEL2
25
CPU frequency select input, bit 2 (See table below.)
CPUCLK[0:3]
44, 43, 41, 40
CPU clock outputs
PCICLK[0:4]
10, 11, 12, 13, 15
PCI clock outputs, at one-half the CPU frequency
PCICLK_F
8
Free-running PCI clock output
EPCICLK
17
Early PCI clock, leads PCI clocks by 1–4 ns
REF[0-1]
2, 6
3.3V Reference clock outputs, drive 45-pF loads
USBCLK
47
USB Clock output (48 MHz)
IOCLK
46
IO Clock output (24 MHz)
SDATA
23
Serial data input for serial configuration port
SCLK
24
Serial clock input for serial configuration port
Function Table, EPROM Programmable
I
2
C
Bit 4
SEL0
SEL1
SEL2
CPU/PCI
Ratio
CPUCLK[0:3]
SDRAM[0:5]
PCICLK[0:4]
PCICLK_F
EPCICLK
REF[0-1]
USBCLK
IOCLK
0
0
0
0
2
15 MHz
7.5 MHz
14.318 MHz
48 MHz
24 MHz
0
0
0
1
2
16.67 MHz
8.33 MHz
14.318 MHz
48 MHz
24 MHz
0
0
1
0
2.5
18.75 MHz
7.5 MHz
14.318 MHz
48 MHz
24 MHz
0
0
1
1
2
13.75 MHz
6.875 MHz
14.318 MHz
48 MHz
24 MHz
0
1
0
0
2
60.0 MHz
30.0 MHz
14.318 MHz
48 MHz
24 MHz
0
1
0
1
2
66.67 MHz
33.33 MHz
14.318 MHz
48 MHz
24 MHz
0
1
1
0
2.5
75.0 MHz
30.0 MHz
14.318 MHz
48 MHz
24 MHz
0
1
1
1
2
55.0 MHz
27.5 MHz
14.318 MHz
48 MHz
24 MHz
Note:
2.
For best accuracy, use a parallel-resonant crystal, C
LOAD
= 18 pF.
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| CY2275A | PentiumII Clock Synthesizer/Driver for Desktop PCs with Intel 82440LX with 3 DIMMs(帶英特爾82440LX 和 3個(gè)DIMM的應(yīng)用于桌上型PC機(jī)的奔騰II時(shí)鐘合成器/驅(qū)動器) |
| CY2276A-12 | PentiumII Clock Synthesizer/Driver for Desktop PCs with Intel 82440LX and 4 DIMMs(帶英特爾82440LX 和4個(gè)DIMM的應(yīng)用于桌上型PC機(jī)的奔騰II時(shí)鐘合成器/驅(qū)動器) |
| CY2276A-13 | PentiumII Clock Synthesizer/Driver for Desktop PCs with Intel 82440LX and 4 DIMMs(帶英特爾82440LX 和4個(gè)DIMM的應(yīng)用于桌上型PC機(jī)的奔騰II時(shí)鐘合成器/驅(qū)動器) |
| CY2276A-21 | PentiumII Clock Synthesizer/Driver for Desktop PCs with Intel 82440LX and 3SO- DIMMs(帶英特爾82440LX 和3SO-DIMM的應(yīng)用于桌上型PC機(jī)的奔騰II時(shí)鐘合成器/驅(qū)動器) |
| CY2276A-31 | PentiumII Clock Synthesizer/Driver for Desktop PCs with Intel 82440LX and 3SO- DIMMs(帶英特爾82440LX 和3SO-DIMM的應(yīng)用于桌上型PC機(jī)的奔騰II時(shí)鐘合成器/驅(qū)動器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY2273A | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop PCs with Intel 82430TX, 82440LX or ALI IV/IV+, AGP and 3 DIMMs |
| CY2273A-1 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop PCs with Intel 82430TX, 82440LX or ALI IV/IV+, AGP and 3 DIMMs |
| CY2273A-2 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop PCs with Intel 82430TX, 82440LX or ALI IV/IV+, AGP and 3 DIMMs |
| CY2273A-3 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop PCs with Intel 82430TX, 82440LX or ALI IV/IV+, AGP and 3 DIMMs |
| CY2273A-4 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Pentium㈢/II, 6x86, K6 Clock Synthesizer/Driver for Desktop PCs with Intel 82430TX, 82440LX or ALI IV/IV+, AGP and 3 DIMMs |
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