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CY28341ZC-2T PDF预览

CY28341ZC-2T

更新时间: 2024-11-18 03:57:23
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 双倍数据速率时钟
页数 文件大小 规格书
19页 320K
描述
Universal Clock Chip for VIA⑩P4M/KT/KM400 DDR Systems

CY28341ZC-2T 数据手册

 浏览型号CY28341ZC-2T的Datasheet PDF文件第2页浏览型号CY28341ZC-2T的Datasheet PDF文件第3页浏览型号CY28341ZC-2T的Datasheet PDF文件第4页浏览型号CY28341ZC-2T的Datasheet PDF文件第5页浏览型号CY28341ZC-2T的Datasheet PDF文件第6页浏览型号CY28341ZC-2T的Datasheet PDF文件第7页 
CY28341-2  
Universal Clock Chip for VIA™P4M/KT/KM400  
DDR Systems  
Features  
Table 1. Frequency Selection Table  
FS(3:0)  
0000  
0001  
0010  
0011  
0100  
0101  
0110  
0111  
1000  
1001  
1010  
1011  
1100  
1101  
1110  
1111  
CPU  
AGP  
66.80  
66.80  
60.00  
66.67  
72.00  
70.00  
64.00  
70.00  
77.00  
73.33  
60.00  
66.6  
PCI  
• Supports VIAP4M/KM/KT/266/333/400 chipsets  
• Supports Pentium® 4, Athlon™ processors  
• Supports two DDR DIMMS  
• Supports three SDRAM DIMMS at 100 MHz  
• Provides:  
— two different programmable CPU clock pairs  
— six differential SDRAM DDR pairs  
— three low-skew/-jitter AGP clocks  
— seven low-skew/-jitter PCI clocks  
— one 48M output for USB  
66.80  
33.40  
33.40  
30.00  
33.33  
36.00  
35.00  
32.00  
35.00  
38.50  
36.67  
30.00  
33.3  
100.00  
120.00  
133.33  
72.00  
105.00  
160.00  
140.00  
77.00  
110.00  
180.00  
166.6  
— one programmable 24M or 48M for SIO  
• Dial-a-Frequencyand Dial-a-dBfeatures  
90.00  
60.00  
66.67  
66.67  
66.67  
30.00  
33.33  
33.33  
33.33  
100.00  
200.00  
133.33  
• SpreadSpectrumforbestelectromagneticinterference  
(EMI) reduction  
• Watchdog feature for system recovery  
• SMBus-compatible for programmability  
• 56-pin SSOP and TSSOP packages  
Pin Configuration[1]  
Block Diagram  
VDDR  
XIN  
XOUT  
1
2
3
4
5
6
7
8
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
*FS0/REF0  
VSSR  
VTTPWRGD#/REF1  
VDDR  
VSSC  
CPUT/CPUOD_T  
CPUC/CPUOD_C  
VDDC  
REF(0:1)  
VDDI  
XTAL  
FS2  
REF0  
XIN  
XOUT  
VDDAGP  
AGP0  
*SELP4_K7/AGP1  
AGP2  
VSSAGP  
**FS1/PCI_F  
**SELSDR_DDR/PCI1  
CPUCS_T/C  
FS0  
VDDC  
SELP4_K7#  
VDDI  
CPU(0:1)/CPU0D_T/C  
PLL1  
CPUCS_C  
CPUCS_T  
VSSI  
FBOUT  
BUF_IN  
DDRT0/SDRAM0  
DDRC0/SDRAM1  
DDRT1/SDRAM2  
DDRC1/SDRAM3  
VDDD  
9
VDDPCI  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
PCI(3:6)  
FS3 FS1  
*MULTSEL/PCI2  
VSSPCI  
PCI3  
PCI_F  
MULTSEL  
PCI2  
PD#  
PCI4  
VDDPCI  
PCI5  
PCI1  
VDDAGP  
AGP(0:2)  
PCI6  
VSSD  
VSS48M  
**FS3/48M  
**FS2/24_48M  
VDD48M  
VDD  
VSS  
IREF  
*PD#/SRESET#  
SCLK  
DDRT2/SDRAM4  
DDRC2/SDRAM5  
DDRT3/SDRAM6  
DDRC3/SDRAM7  
VDDD  
VDD48M  
48M  
SDATA  
SCLK  
SMBus  
PLL2  
/ 2  
WDEN  
VSSD  
24_48M  
DDRT4/SDRAM8  
DDRC4/SDRAM9  
DDRT5/SDRAM10  
DDRC5/SDRAM11  
SRESET#  
VDDD  
WD  
SDATA  
SELSDR_DDR  
FBOUT  
S2D  
56 pin SSOP  
DDRT(0:5)/SDRAM(0,2,4,6,8,10)  
DDRC(0:5)/SDRAM(1,3,5,7,9,11)  
Buf_IN  
CONVERT  
Note:  
1. Pins marked with [*] have internal pull-up resistors. Pins marked with [**] have internal pull-down resistors.  
Cypress Semiconductor Corporation  
3901 North First Street  
San Jose, CA 95134  
408-943-2600  
Document #: 38-07471 Rev. *D  
Revised March 11, 2005  

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