參數(shù)資料
型號: C9805CYB
英文描述: Quad line receivers
中文描述: CPU系統(tǒng)時鐘發(fā)生器
文件頁數(shù): 1/10頁
文件大?。?/td> 102K
代理商: C9805CYB
C9805
Low EMI Clock Generator for Pentium
II CPU Systems with Power Management
Approved Product
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
Product Features
Supports Intel Pentium
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
Block Diagram
REF
OSC
XIN
XOUT
REF[0:1]
IOAPIC
SEL[0:1]
CPU[0:2]
VDDC/2
PCI [0:9]
3V66 [0:2]
PLL2
48M
PD#
PLL1
VDDF
VDDA
VDDP
VDDC
VDDI
VDDF
SEL133/100#
/2
CPU/2
Frequency Table
SEL133/100#
0
1
*See complete table on page 3.
CPU
100*
133*
PCI
33.3*
33.3*
Pin Configuration
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
VDDR
REF1
XIN
XOUT
VSSP
PCI0
PCI1
VDDP
PCI3
PCI4
PCI5
VSS
PCI7
VDDP
PCI2
PCI6
PCI8
PCI9
3V66_0
3V66_1
3V66_2
VDD66
SEL133/100#
VSS
48M
VDD48
SEL0
SS#
SEL1
VSS
VSS
CPU0
VDDC
CPU1
VSS
VDDC
VSS
PD#
VDD3
CPU2
CPU/2
VDDC/2
VSS
IOAPIC
VDDI
VSS
VSS
C9805
REF0
41
42
43
44
45
46
47
48
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