±15kV ESD-Protected, +5V RS-232 Transceivers
MAX202E–MAX213E, MAX232E/MAX241E
_____________________________________________________________Pin Descriptions
MAX202E/MAX232E
PIN
DIP/SO/TSSOP
1, 3
2
4, 5
6
7, 14
8, 13
9, 12
10, 11
15
16
__
LCC
2, 4
3
5, 7
8
9, 18
10, 17
12, 15
13, 14
19
20
1, 6, 11, 16
NAME
C1+, C1-
V+
C2+, C2-
V-
T_OUT
R_IN
R_OUT
T_IN
GND
V
CC
N.C.
FUNCTION
Terminals for positive charge-pump capacitor
+2V
CC
voltage generated by the charge pump
Terminals for negative charge-pump capacitor
-2V
CC
voltage generated by the charge pump
RS-232 Driver Outputs
RS-232 Receiver Outputs
RS-232 Receiver Outputs
RS-232 Driver Inputs
Ground
+4.5V to +5.5V Supply-Voltage Input
No Connect—not internally connected.
MAX203E
PIN
DIP
1, 2
3, 20
4,19
5,18
6, 9
7
8
10, 16
12, 17
13
14
11, 15
SO
1, 2
3, 20
4, 19
5, 18
6, 9
7
13
11, 16
10, 17
14
8
12, 15
NAME
T_IN
R_OUT
R_IN
T_OUT
GND
V
CC
C1+
C2-
V-
C1-
V+
C2+
FUNCTION
RS-232 Driver Inputs
RS-232 Receiver Outputs
RS-232 Receiver Inputs
RS-232 Transmitter Outputs
Ground
+4.5V to +5.5V Supply-Voltage Input
Make no connection to this pin.
Connect pins together.
-2V
CC
voltage generated by the charge pump. Connect pins together.
Make no connection to this pin.
+2V
CC
voltage generated by the charge pump
Connect pins together.
MAX205E
PIN
1–4, 19
5, 10, 13, 18, 24
6, 9, 14, 17, 23
7, 8, 15, 16, 22
11
12
20
21
NAME
T_OUT
R_IN
R_OUT
T_IN
GND
V
CC
EN
SHDN
FUNCTION
RS-232 Driver Outputs
RS-232 Receiver Inputs
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
TTL/CMOS Driver Inputs. Internal pull-ups to V
CC
.
Ground
+4.75V to +5.25V Supply Voltage
Receiver Enable—active low
Shutdown Control—active high
6
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
