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C9805CYB Datasheet

  • C9805CYB

  • CPU System Clock Generator

  • 10頁

  • ETC

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C9805
Low EMI Clock Generator for Pentium鈩?II CPU Systems with Power Management
Approved Product
Product Features
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Supports Intel Pentium鈩?II CPU designs.
133 and 100 Mhz CPU clock support
Designed to meet Intel chipset specification
3 CPU clocks with isolated power supply
1 CPU/2 clock with isolated power supply
10 PCI clocks with isolated power supply
1 IOAPIC clocks with isolated power supply
One 48 Mhz fixed clock for USB/Super IO with
isolated power supply
3 3V66 clocks with isolated power supply
2 reference clocks with isolated power supply
<175 pS Max. skew among CPU clocks
<500 pS Max. skew among PCI clocks
Power management control of CPU and PCI clocks
48-pin SSOP package
Spread Spectrum EMI reduction mode
Frequency Table
SEL133/100#
0
CPU
100*
PCI
33.3*
33.3*
1
133*
*See complete table on page 3.
Pin Configuration
C9805
REF0
REF1
VDDR
XIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
VSS
VDDI
IOAPIC
VSS
VDDC/2
CPU/2
VSS
VDDC
CPU2
VSS
VDDC
CPU1
CPU0
VSS
VDD3
VSS
PD#
SS#
SEL1
SEL0
VDD48
48M
VSS
SEL133/100#
Block Diagram
VDDF
XIN
XOUT
REF
OSC
REF[0:1]
VDDI
IOAPIC
XOUT
VSSP
PCI0
PCI1
VDDP
PCI2
PCI3
PCI4
PCI5
VSS
PCI6
PCI7
VDDP
PCI8
VDDC
CPU[0:2]
VDDC/2
SEL[0:1]
SEL133/100#
PD#
VDDA
3V66 [0:2]
VDDF
PLL2
48M
/2
PLL1
VDDP
PCI [0:9]
CPU/2
PCI9
VSS
3V66_0
3V66_1
3V66_2
VDD66
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
MILPITAS, CA 95035 TEL: 408-263-6300 ext. 275 FAX 408-263-6571
http://www.imicorp.com
Rev 1.5
9/2/1999
Page 1 of 10

C9805CYB相關(guān)型號(hào)PDF文件下載

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  • 英文版
    CPU SYSTEM CLOCK GENERATOR|CMOS|SSOP|56PIN|PLASTIC
    ETC
  • 英文版
    CPU System Clock Generator
    ETC

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