______________________________________________________________________________________

15

±15kV ESD-Protected, +5V RS-232 Transceivers

____________Pin Configurations and Typical Operating Circuits (continued)

20

19

18

17

16

15

14

13

1

2

3

4

5

6

7

8

R2OUT

R2IN

T2OUT

V-

R1IN

R1OUT

T1IN

T2IN

C2-

C2+

V+ (C1-)

C1- (C1+)

C1+ (V+)

GND

T1OUT

12

11

9

10

V- (C2+)

C2+ (C2-)

C2- (V-)

GND

DIP/SO

MAX203E

TOP VIEW

TTL/CMOS

INPUTS

TTL/CMOS

OUTPUTS

2

1

3

20

GND

GND

400k

5k

5k

T1IN

T2IN

R2OUT

R1OUT

7

5

18

4

19

0.1µF

RS-232

OUTPUTS

RS-232

INPUTS

+5V

400k

+5V

+5V INPUT

T1OUT

R1IN

R2IN

T2OUT

T1

9

6

T2

R1

R2

V-

V-

C1-

C1+

8(13)

13(14)

12(10)

17

14(8)

DO NOT MAKE

CONNECTION TO

THESE PINS

INTERNAL -10V

POWER SUPPLY

INTERNAL +10V

POWER SUPPLY

V+

C2-

C2-

C2+

C2+

11

15

16

10 (11)

PIN NUMBERS IN ( ) ARE FOR SO PACKAGE.

(12)