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