MAX220–MAX249
+5V-Powered, Multichannel RS-232
Drivers/Receivers
+5V INPUT
TOP VIEW
1.0μF
12
V
CC
+5V
400kΩ
T1OUT
T1IN
8
3
T1
+5V
+5V
+5V
+5V
400kΩ
400kΩ
400kΩ
400kΩ
T2OUT
T3OUT
T4OUT
T2IN
T3IN
T4IN
7
15
16
4
T2
T3
T4
2
1
TTL/CMOS
INPUTS
RS-232
OUTPUTS
+
T4OUT
T3OUT
T1OUT
T2OUT
R2IN
1
2
3
4
5
6
7
8
9
24 R3IN
23 R3OUT
22 T5IN
21 SHDN
20 EN
MAX235
T5OUT
R1IN
22 T5IN
19
10
T5
T1
R2OUT
T2IN
19 T5OUT
18 R4IN
17 R4OUT
16 T4IN
15 T3IN
14 R5OUT
13 R5IN
9
R1OUT
T1IN
5kΩ
R2IN
R1OUT
R1IN 10
GND 11
5
R2OUT
R3OUT
R4OUT
6
R2
5kΩ
R3IN 24
5kΩ
R4IN
5kΩ
R5IN
V
12
CC
23
TTL/CMOS
OUTPUTS
RS-232
INPUTS
R3
R4
DIP
18
17
R5OUT
EN
13
14
20
R5
5kΩ
SHDN
21
GND
11
ꢁigure ±3. MAX235 Pin Configuration and Typical Operating Circuit
22
Maxim Integrated
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
