+5V, RS-232 Transceivers
with 0.1µF External Capacitors
MAX203 Pin Configurations/Typical Operating Circuit
+5V INPUT
TOP VIEW
0.1FF
7
T2
T1
1
2
3
4
5
6
7
8
9
20 R2
19 R2
18 T2
17 V-
IN
OUT
V
+5V
CC
IN
IN
R1
OUT
OUT
400kI
400kI
R1
T1
T2
T1
T2
MAX203
IN
2
IN
OUT 5
T1
T1
16 C2-
15 C2+
14 V+
+5V
OUT
TTL/CMOS
INPUTS
RS-232
OUTPUTS
GND
V
CC
1
3
IN
OUT 18
T2
C1+
13 C1-
12 V-
GND
R1
R2
R1
IN 4
C2- 10
11 C2+
OUT
OUT
R1
TTL/CMOS
OUTPUTS
DIP
5kI
RS-232
INPUTS
R2
IN 19
20
R2
T2
T1
1
2
3
4
5
6
7
8
9
20 R2
19 R2
18 T2
17 V-
IN
OUT
5kI
IN
IN
R1
OUT
OUT
11 (12)
15
8 (13)
DO NOT MAKE
CONNECTION TO
THESE PINS
C1+
C1-
C2+
C2+
R1
MAX203
IN
13 (14)
T1
16 C2-
15 C2+
14 C1-
13 C1+
12 C2+
11 C2-
OUT
MAX203
16
12 (10)
17
INTERNAL -10V
POWER SUPPLY
GND
C2-
C2-
V-
V-
10 (11)
V
CC
V+
INTERNAL +10V
POWER SUPPLY
14 (8)
V+
GND
GND
GND
6
9
V- 10
SO
NOTE: PIN NUMBERS IN ( ) ARE FOR SO PACKAGE.
12
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
