ICS2694 Standard Patterns

CPUSEL0-3

(Hex)

CPUCLK OUTPUT (Pin 5)

(MHz)

02

110

220

324

425

532

6

33.33

740

848

950

10

54

11

66.67

12

68

13

80

14

100

15

16

Note: Pattern -004 has rising edges of CPUCLK and

CPUCLK/2 matched to

± 2 ns.

Another alternative for CPU CLOCK generation is the

ICS2494-244 if the additional functions of the ICS2694 are

not needed in the application.

ICS

Part Number

ICS2494-

244

Address FS3-0

(Hex)

Frequency

(MHz)

020

124

232

340

450

566.6

680

7

100

854

970

090

B110

C25

D33.3

E40

F50

Address MS1-0

(Hex)

Frequency

(MHz)

016

124

250

366.6

32 MHz

1

24

16 MHz

1.846 MHz

2

23

8 MHz

24 MHz

3

22

9.6 MHz

6 MHz

4

21

14.318 MHz

CPUCLK

5

20

CPUCLK/2

VSS

6

19

1.19 MHz

DVDD

7

18

AVDD

STROBE

8

17

XTAL2

CPUSEL0

9

16

XTAL1

CPUSEL1

10

15

AVSS

CPUSEL2

11

14

OUTPUTE

CPUSEL3

12

13

CLKIN

ICS2694

8