Pins 1-3-5-6

8-10-11-20

V

CC

0.36 V

CC

6time s

Figure 2 : Input Configuration

IN / OUT PIN CONFIGURATION

86

1000

0110

When pin PROG is connected to ground

06

0000

0110

Example :00100 101 connects Pin 10 (input) to Pin 14 (output) (equals 25 in hexadecimal)

Adress byte (1st byte of transmission)

V

CC

Output

x3

7k

Ω

14k

Ω

11k

Ω

8 NPN tra ns istors

Allvide o

outputs

Pins 13-14-15

16-17-18

Figure 3 : Output Configuration

BUS SELECTIONS (I

2nd byte of transmission

ADDRESS

MSB

DATA

LSB

Selected Output

Output is selected by

address bits

00000

XXX

Pin 18

00100

XXX

Pin 14

00010

XXX

Pin 16

00110

- - -

Not used

00001

XXX

Pin 17

00101

XXX

Pin 13

00011

XXX

Pin 15

00111

- - -

Not used

Selected Input

Input is selected by

data bits

00XXX

000

Pin 5

00XXX

100

Pin 8

00XXX

010

Pin 3

00XXX

110

Pin 20

00XXX

001

Pin 6

00XXX

101

Pin 10

00XXX

011

Pin 1

00XXX

111

Pin 11

TEA6415C

5/10