C9630 Datasheet, PDF (1/18 Pages) Cypress Semiconductor – PC133 Clock Generator for SiS630/Pentium III & SiS540/Socket7 Applications

APPROVED PRODUCT
C9630
PC133 Clock Generator for SiS630/Pentium^®III & SiS540/Socket7 Applications
Product Features
• Supports PentiumIII, K6, and Socket 7 CPU’s
• Designed to SiS630 & SiS540 Chipset requirements
• 3 copies of CPU Clock (CPU[0:2] )
• 14 copies of SDRAM Clock (SDRAM[0:13]
• 7 copies of PCI Clock
• 2 REF(0:1) Clock outputs
• 1 USB Clock (Non SSC), 48MHz
• 1 programmable SIO (Non SSC), 24/48MHz
• 133 MHz SDRAM support
• Cypress Spread Spectrum for best EMI reduction
• SMBus Support with read back capabilities.
• Dial-a-Frequency™ Feature
• 48 Pin SSOP package.
Block Diagram
Xin
Xout
30pF
300K
30pF
VDD
1
REF1
VDD
1
REF0/S3
VDDcpu
Rin
cpu
3
CPU(0:2)
DATA
SCLK
s3
s2
s1
s0
sdata
sclk
PLL1
sdram
pci
VDD
14
SDRAM(0:13)
VDD
5
PCI(2:6)
VDD
1
PCI0/S1
VDD
1
PCI1/S2
Rin
48
i2c-clk
i2c-data
24 or 48
PLL2
1
48MHz/S0
VDD
VDD
1
24_48MHz
Fig.1
Frequency Table (MHz)
FS3 FS2 FS1 FS0 CPU
0
0
0
0 66.6
0
0
0
1 100.0
0
0
1
0 150.0
0
0
1
1 133.3
0
1
0
0 66.8
0
1
0
1 100.0
0
1
1
0 100.0
0
1
1
1 133.3
1
0
0
0 66.9
1
0
0
1 97.2
1
0
1
0 70.0
1
0
1
1 95.0
1
1
0
0 95.0
1
1
0
1 112.0
1
1
1
0 97.0
1
1
1
1 96.0
Table 1
Note: *Programmable to 48 MHz via SMBus
Pin Configuration
SDRAM
100.0
100.0
100.0
100.0
133.6
133.3
150.0
133.3
66.9
97.2
105.0
95.0
126.7
112.0
129.3
96.0
PCICLK
33.3
33.3
37.5
33.3
33.4
33.3
37.5
33.3
33.4
32.4
35.0
31.6
31.6
37.3
32.4
32.0
VDD 1
S3 / REF0 2
VSS 3
XIN 4
XOUT 5
VDD 6
S1/ PCI0 7
S2 / PCI1 8
PCI2 9
VSS 10
PCI3 11
PCI4 12
PCI5 13
PCI6 14
VDD 15
VSS 16
SDRAM0 17
SDRAM1 18
VDD 19
SDRAM2 20
SDRAM3 21
VSS 22
SDATA 23
SCLK 24
48 REF1
47 VDDC
46 CPU0
45 CPU1
44 VSS
43 CPU2
42 VDD
41 SDRAM13
40 SDRAM12
39 VSS
38 SDRAM11
37 SDRAM10
36 VDD
35 SDRAM9
34 SDRAM8
33 VSS
32 SDRAM7
31 SDRAM6
30 VDD
29 SDRAM5
28 SDRAM4
27 VDD
26 S0 / 48MHz
25 24_48MHz
Fig.2
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: [phone], Fax: [phone]
http://www.cypress.com
Document#: 38-07035 Rev. **
05/02/2001
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