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參數(shù)資料
| 型號： | C9914BY |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 150 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28 |
| 封裝： | SSOP-28 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 131K |
| 代理商： | C9914BY |
Clock Generator for 100MHz and 133.3MHz Mobile Applications
Cypress Semiconductor Corporation
525 Los Coches St.
Document#: 38-07069 Rev. **
5/4/2001
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
Page 1 of 14
http://www.cypress.com
PRELIMINARY
C9914
Product Features
Supports Intel 440BX, and VIA Promedia chipsets
Supports mobile Pentium
II and PentiumIII
2 REF clocks
2 Low Skew (<175pS) CPU clocks
6 PCI Clocks (1 free running, 5 manageable)
1 48MHz fixed clock
1 selectable 48 or 24 MHz fixed clock
Separate supply pins for mixed 3.3/2.5V application.
High Speed host bus operation, up to 150MHz
Cypress Spread Spectrum technology for reducing
EMI
Rich Power Management Functions.
28-pin SSOP & TSSOP packages for minimum
board space.
Block Diagram
Fig.1
Frequency Table(MHz)
HFS#
SEL 100/66#
CPU(1:2)
PCI(_F,1:5)
1
0
66.6
33.3
1
100
33.3
0
150
37.5
0
1
133.3
33.3
Table 1
Pin Configuration
VSS
XIN
XOUT
PCI_F
PCI1
PCI2
VSS
VDDP
PCI3
PCI4
PCI5
VDDF
48M
48_24/HFS#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
VDDR
REF1/SEL48#
REF2/SS#
VDDC
CPU1
CPU2
VSS
PS#
VDD
CS#
PD#
SEL100/66#
VSS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VDDP
VDDC
VDDR
VDDF
PLL1
Rin
HFS#
s100/66#
PD#
CS#
PS#
cpu
pci
SS#
300K
36pF
XB
UF
6
2
1
PLL2
Rin
48
PD#
24
0
1
XIN
XOUT
PCI(_F,1:5)
CPU(0:1)
REF2/SS#
REF1/SEL48#
PD#
CS#
PS#
SEL100/66#
48MHz
48_24/HFS#
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