Datasheet

3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232
Transceivers Using Four 0.1µF External Capacitors
Maxim Integrated 13
MAX3222/MAX3232/MAX3237/MAX3241
_____________________________________Typical Operating Circuits (continued)
MAX3241
EN
23
R5OUT
15
R4OUT
16
R3OUT
17
R2OUT
18
R1OUT
19
R2OUTB
20
R1OUTB
21
TTL/CMOS
OUTPUTS
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
R5IN 8
* C3 CAN BE RETURNED TO EITHER V
CC
OR GROUND.
R4IN
7
R3IN
6
R2IN 5
R1IN
4
RS-232
INPUTS
SHDN
22
GND
25
RS-232
OUTPUTS
TTL/CMOS
INPUTS
T3IN
12
T2IN
13
T1IN
14
C2-
2
C2+
1
C1-
24
C1+
28
T3OUT
11
T2OUT 10
T1OUT 9
V-
3
V+
27
V
CC
C4
0.1μF
C3
*
0.1μF
0.1μF
0.1μF
0.1μF
+3.3V
26
MAX3237
EN
13
R3OUT
18
R2OUT
20
R1OUT
21
R1OUTB
16
LOGIC
OUTPUTS
5kΩ
5kΩ
5kΩ
* C3 CAN BE RETURNED TO EITHER V
CC
OR GROUND.
R3IN
11
R2IN 9
R1IN
8
RS-232
INPUTS
GND
2
RS-232
OUTPUTS
LOGIC
INPUTS
T3IN
22
T2IN
23
T1IN
24
C2-
3
C2+
1
C1-
25
C1+
28
T3OUT
7
T2OUT 6
T1OUT 5
T1
T2
T3
R1
R2
R3
V-
4
V+
27
V
CC
0.1μF
0.1μF
0.1μF
0.1μF
0.1μF
26
MBAUD
15
T5IN
17
T4IN
19
T5OUT
12
T4OUT 10
SHDN
14
T4
T5