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參數(shù)資料
| 型號： | IMIC9806CY |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | SSOP-48 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 185K |
| 代理商： | IMIC9806CY |
C9806C
I
2C Frequency Clock Generator for Mobile Pentium II Applications.
Preliminary
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
Rev.1.0
2/9/2000
MILPITAS, CA 95035. TEL: 408-263-6300. FAX 408-263-6571
Page 1 of 15
http://www.imicorp.com
Product Features
Supports Pentium & Pentium II CPUs.
2 CPU clocks.
7 independent SDRAM clocks for 3 SO DIMMs.
Power Management hardware support.
7 PCI synchronous clocks.
< 175 pS skew CPU and SDRAM clocks.
< 175 pS skew among PCI clocks.
I
2C 2-Wire serial interface
Programmable registers featuring:
Individual clock enable/disable
Mode as Tri-state, test, or normal
24/48 MHz selections
Enable/Disable SST
Available in 48-pin SSOP and TSSOP packages
Spread Spectrum Technology (SST)
Dial-a-Frequency
Feature
Block Diagram
Fig.1
Frequency Table (MHz)
S1
S0
CPU(0:1)
PCI(_F,0:5)
0
60
30
0
1
66.6
33.3
1
0
133.3
33.3
1
100
33.3
Table 1
Pin Configuration
1
REF1
2
REF0
3
VSS
10
VSS
9
PCI0
8
PCI_F
7
VDD
6
S1
5
XOUT
4
XIN
11
PCI1
12
PCI2
13
PCI3
14
PCI4
15
VDD
16
PCI5
17
VSS
18
S0
19
SDATA
20
SCLK
21
VDD
22
24/48 MHz
23
24/48 MHz
24
VSS
48
VDD
47
REF3
46
VDD
45
REF2
44
PWR_DWN#
43
VSS
42
CPU0
41
CPU1
40
VDDC
39
SDRAM_IN
38
SDRAM_FB
37
VSS
36
SDRAM0
35
SDRAM1
34
VDDS
33
SDRAM2
32
SDRAM3
31
VSS
30
SDRAM4
29
SDRAM5
28
VDDS
27
CPU_STOP#
26
PCI_STP#
25
VDD
VDDC
VDD
VDDS
500K
36pF
I2CPMU
CS#
PS#
PD#
C
D
PLL1
Rin
S1
S0
pci
cpu
2
7
1
4
PLL2
48/24
Rin
1
7
XIN
XOUT
SDATA
SCLK
REF(0:3)
PCI_STP#
CPU_STP#
PWR_DWN#
S0
S1
CPU(0:1)
PCI(_F,0:5)
24/48 MHz
SDRAM_IN
SDRAM(_FB,0:5)
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