參數(shù)資料
型號: CY2283PVC-1
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: XO, clock
英文描述: PentiumII, K6, 6x86 100-MHz Clock Synthesizer/Driver for Desktop PCs with ALI or VIA Chipsets, AGP and 3 DIMMs
中文描述: 100 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48
封裝: SSOP-48
文件頁數(shù): 2/12頁
文件大小: 219K
代理商: CY2283PVC-1
CY2283
PRELIMINARY
2
Pin Summary
Name
V
DDQ3
V
DDCPU
AV
DD
V
SS
Pins
6, 14, 19, 30, 36, 48
Description
3.3V Digital voltage supply
42
1
CPU Digital voltage supply, 2.5V or 3.3V
Analog voltage supply, 3.3V
3, 9, 16, 22, 27, 33,
39, 45
4
Ground
XTALIN
[3]
XTALOUT
[3]
Reference crystal input
5
Reference crystal feedback
SDRAM7/ PCI_STOP
28
SDRAM clock output. Also, active LOW control input to stop PCI clocks, enabled
when MODE is LOW.
SDRAM6/CPU_STOP
29
SDRAM clock output. Also, active LOW control input to stop CPU clocks, enabled
when MODE is LOW.
SDRAM clock output. Also, active LOW control input to power down device,
enabled when MODE is LOW.
SDRAM5/ PWR_DWN
31
SDRAM[0:4],[8:11]
38, 37, 35, 34, 32,
21, 20, 18, 17
SDRAM clock outputs
SEL0
26
CPU frequency select input, bit 0 (see table below)
SEL1
CPUCLK[0:3]
46
44, 43, 41, 40
CPU frequency select input, bit 0 (see table below)
CPU clock outputs
PCICLK[0:3]
8, 10, 11, 12
PCI clock outputs, at one-half the CPU frequency.
PCICLK_F
AGP[0:1]
7
13, 15
Free-running PCI clock output
AGP clock outputs
REF0
2
3.3V Reference clock output
USBCLK
SDATA
47
23
USB Clock output
Serial data input for serial configuration port
SCLK
24
Serial clock input for serial configuration port
MODE
25
Mode Select pin for enabling power management features
Note:
3.
For best accuracy, use a parallel-resonant crystal, C
LOAD
= 18 pF.
Function Table
SEL1
0
SEL0
0
CPU/PCI
Ratio
2.5
CPUCLK[0:3]
SDRAM[0:11]
83.33 MHz
PCICLK[0:3]
PCICLK_F
33.33 MHz
AGP[0:1]
66.66 MHz
REF0
USBCLK
48 MHz
14.318 MHz
0
1
2
66.67 MHz
33.33 MHz
66.66 MHz
14.318 MHz
48 MHz
1
0
3.0
100.0 MHz
33.33 MHz
66.66 MHz
14.318 MHz
48 MHz
1
1
2.5
75.0 MHz
30.0 MHz
60.0 MHz
14.318 MHz
48 MHz
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CY2283PVC-2 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:PentiumII, K6, 6x86 100-MHz Clock Synthesizer/Driver for Desktop PCs with ALI or VIA Chipsets, AGP and 3 DIMMs
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CY2285PVC-1 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator
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CY2285PVC-3 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:100-MHz Pentium㈢II Clock Synthesizer/Driver with Spread Spectrum for Mobile PCs