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參數(shù)資料
| 型號(hào)： | CY2276A-21 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | 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(dòng)器) |
| 中文描述： | PentiumII時(shí)鐘合成器/桌面電腦與英特爾82440LX和3SO - DIMM內(nèi)存（帶英特爾82440LX和3SO - DIMM內(nèi)存的應(yīng)用于桌上型電腦機(jī)的奔騰二時(shí)鐘合成器/驅(qū)動(dòng)器驅(qū)動(dòng)程序） |
| 文件頁數(shù)： | 3/13頁 |
| 文件大?。?/td> | 205K |
| 代理商： | CY2276A-21 |
CY2276A-21
CY2276A-31
3
Pin Summary
Name
V
DDQ3
Pins (-21)
8, 16, 21, 27,
38, 44
56
Pins (-31)
7, 15, 20, 26,
37, 43
56
Description
3.3V Digital voltage supply
V
DDQ2
V
DDCPU
AV
DD
V
SS
IOAPIC Digital voltage supply, 2.5V
50
50
CPU Digital voltage supply, 2.5V
1
4, 11, 18, 24,
32, 35, 41, 47,
53
5
1
4, 10, 17, 23,
31, 34, 40, 47,
53
5
Analog voltage supply, 3.3V
Ground
XTALIN
[1]
XTALOUT
[1]
Reference crystal input
6
6
Reference crystal feedback
SDRAM[0–15] (-21)
SDRAM[0–12] (-31)
46, 45, 43, 42,
40, 39, 37, 36,
23, 22, 20, 19,
34, 33, 26, 25
31
45, 44, 42, 41,
39, 38, 36, 35,
33, 32, 25, 24,
22
29
SDRAM clock outputs
OE
Active HIGH output enable, disables all outputs when asserted
CPUCLK [0–3] (-21)
CPUCLK [0–4] (-31)
PCICLK [0–6] (All)
52, 51, 49, 48
52, 51, 49, 48,
46
9, 11, 12, 13,
14, 16, 8
CPU clock outputs
10, 12, 13, 14,
15, 17, 9
PCI clock outputs, running at one-half the CPU frequency
IOAPIC [0–1] (All)
REF0 (-21)
REF [0–1] (-31)
55, 54
7
55, 54
2, 3
IOAPIC clock outputs
Reference clock outputs, 14.318 MHz. REF0 drives 45 pF load
USBCLK (-21)
USBCLK [0–1] (-31)
3
18, 19
48 MHz USB clock output
IOCLK
2
N/A
24 MHz I/O clock output
SDATA
SCLK
28
29
27
28
Serial data input for serial configuration port
Serial clock input for serial configuration port
CPU_STOP
N/A
N/A
Active LOW input, disables CPU clocks when asserted
MODE
N/C
30
N/A
N/A
21
Mode input, not used, tie to V
SS
Not connected. Tie to V
SS
CPU frequency select input (see Function Table)
SEL
N/A
30
Note:
1.
For best accuracy, use a parallel-resonant crystal, C
LOAD
= 18 pF.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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(dòng)器) |
| CY2278A | 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) |
| CY22800-082A | Universal Programmable Clock Generator (UPCG) |
| CY22800 | Universal Programmable Clock Generator (UPCG) |
| CY22800_07 | Universal Programmable Clock Generator (UPCG) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY2276APVC-13 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator |
| CY2276PVC-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 |
| CY2276PVC-2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator |
| CY2276PVC-3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator |
| CY2276PVC-4 | 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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