MK712

Touch Screen Controller

MDS 712 I

15

Revision 100899

Printed 11/16/00

Integrated Circuit Systems, Inc.•525 Race St.•San Jose•CA•95126•(408)295-9800tel•www.icst.com

I C R O

Suggested Layout

G

G

G

V

V

G = connection to ground plane

V = connection to VDD plane

0.1µF

0.1µF

0.01µF

0.1µF 0.1µF

0.01µF

22µF

To

Touch

Screen

Pin 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

Notes:

1. The 14.318 MHz input clock on pin 18 should have a 33

Ω series termination resistor at its source.

Consult MicroClock for the best way to generate this clock.

2. All digital signals should be kept well away from pins 4, 5, 6, 7, 8, 9, 10, and 11, and any traces

connected to those pins.