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ICS9131 Datasheet(PDF) 2 Page - Integrated Circuit Systems

Part # ICS9131
Description  32 KhZ Motherboard Frequency Generator
PDF  8 Pages
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Manufacturer  ICST [Integrated Circuit Systems]
Direct Link  http://www.icst.com
Logo ICST - Integrated Circuit Systems

ICS9131 Datasheet(HTML) 2 Page - Integrated Circuit Systems

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ICS9131
Pin Descriptions
Functionality
FS2
FS1
FS0
CPUCLK
ACTUALS
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
16
25
33.3
40
50
60
66.6
80
16.004
25.059
33.412
40.095
50.119
60.142
66.484
80.190
PIN NUMBER
PIN NAME
TYPE
DESCRIPTION
1
32 kHz
Output
32.768 kHz output.
2
X2
Output
Connect 32 kHz crystal, this input includes internal load
capacitor for crystal.
3
X1
Input
Connect 32 kHz crystal, this input includes internal load
capacitor for crystal.
4
VDD32
--
Power Supply for 32 kHz oscillator.
5
VCC
--
Power Supply.
6
VSS
--
Ground.
7
AGND
--
Analog Ground.
8
OE
Input
OE tristates outputs when low.
9
FS2
Input
CPU clock frequency select 2.
10
REFCLK
Output
14.318 MHz output.
11
STOPCLK#
Input
Stops CPU clock when low.
12
VSS
--
Ground.
13
VCC
--
Power supply.
14
CPUCLK
Output
CPU clock output (see Decoding table).
15
FS1
Input
CPU clock frequency select 1.
16
FS0
Input
CPU clock frequency select 0.



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