ICS2694M Integrated Circuit System, ICS2694M Datasheet - Page 8

• Manufacturer Part Number: ICS2694M
• Description: Motherboard Clock Generator
• Manufacturer: Integrated Circuit System

ICS2694
ICS2694 Standard Patterns
Note: Pattern -004 has rising edges of CPUCLK and
CPUCLK/2 matched to 2 ns.
CPUSEL0-3
1.846 MHz
CPUSEL0
CPUSEL1
CPUSEL2
CPUSEL3
(Hex)
STROBE
CPUCLK
10
12
13
14
15
11
32 MHz
24 MHz
0
1
2
3
4
5
6
7
8
9
6 MHz
DVDD
VSS
10
12
11
9
1
2
3
6
7
4
5
8
CPUCLK OUTPUT (Pin 5)
16
15
14
13
24
23
22
21
20
19
18
17
(MHz)
33.33
66.67
100
10
20
24
25
32
40
48
50
54
68
80
16
2
AVSS
OUTPUTE
XTAL1
CLKIN
16 MHz
8 MHz
9.6 MHz
14.318 MHz
CPUCLK/2
1.19 MHz
AVDD
XTAL2
8
Another alternative for CPU CLOCK generation is the
ICS2494-244 if the additional functions of the ICS2694 are
not needed in the application.
Address FS3-0
Address MS1-0
Part Number
(Hex)
(Hex)
ICS
D
B
C
E
F
0
1
2
3
4
5
6
7
8
9
0
0
1
2
3
Frequency
ICS2494-
Frequency
(MHz)
(MHz)
244
66.6
33.3
66.6
100
110
20
24
32
40
50
80
54
70
90
25
40
50
16
24
50