MDS 613 C

2

Revision 111204

Integrated Circuit Systems, Inc.

ICS613

Pin Assignment

Clock Select Table

Pin Descriptions

12

1

11

2

10

3

9

X1/IC LK

4

S0

5

S2

6

S1

7

VD D

8

GN D

GN D

VD D

GN D

V DDO 2

V DDO 1

GN D

CLK 2

CLK 1

16

15

14

13

GN D

X2

16 P in (150 m il) S O IC

S2

S1

S0

Input

Output (CLK1

and CLK2)

0

0

0

25

125

0

0

1

25

156.25

0

1

0

25

143.75

0

1

1

25

150

1

0

0

25

146.875

1

0

1

25

157.5

1

1

0

25

140

1

1

1

25

156.25

Pin

Number

Pin

Name

Pin

Type

Pin Description

1

XI/ICLK

Input

Crystal Connection. Connect to a 25 MHz crystal or clock.

2

S0

Input

Select pin 0. Internal pull-down.

3

S2

Input

Select pin 2. Internal pull-down.

4

VDD

Power

Connect to +3.3V. Must be the same as pin 13.

5

GND

Power

Connect to ground.

6

VDDO2

Power

Output VDD for CLK2. Connect to either +2.5V or +3.3V.

7

CLK2

Output

CLK2 output. Frequency based on table above.

8

GND

Power

Connect to ground.

9

GND

Power

Connect to ground.

10

CLK1

Output

CLK1 output. Frequency based on table above.

11

VDDO1

Power

Output VDD for CLK1. Connect to either +2.5V or +3.3V.

12

GND

Power

Connect to ground.

13

VDD

Power

Connect to +3.3V. Must be the same as pin 4.

14

GND

Power

Conenct to ground.

15

S1

Input

Select pin 1. Internal pull-up.

16

X2

Input

Crystal Connection. Connect to a 25 MHz crystal. Leave

unconnected for clock input.