Datasheet

PIN
NAME FUNCTION
DIP/SO/TSSOP LCC
1, 3 2, 4 C1+, C1- Terminals for Positive Charge-Pump Capacitor
2 3 V+ +2V
CC
Voltage Generated by the Charge Pump
4, 5 5, 7 C2+, C2- Terminals for Negative Charge-Pump Capacitor
6 8 V -2V
CC
Voltage Generated by the Charge Pump
7, 14 9, 18 T_OUT RS-232 Driver Outputs
8, 13 10, 17 R_IN RS-232 Receiver Inputs
9, 12 12, 15 R_OUT RS-232 Receiver Outputs
10, 11 13, 14 T_IN RS-232 Driver Inputs
15 19 GND Ground
16 20 V
CC
+4.5V to +5.5V Supply-Voltage Input
— 1, 6, 11, 16 N.C. No Connection—Not Internally Connected
PIN
NAME FUNCTION
DIP SO
1, 2 1, 2 T_IN RS-232 Driver Inputs
3, 20 3, 20 R_OUT RS-232 Receiver Outputs
4,19 4, 19 R_IN RS-232 Receiver Inputs
5,18 5, 18 T_OUT RS-232 Transmitter Outputs
6, 9 6, 9 GND Ground
7 7 V
CC
+4.5V to +5.5V Supply-Voltage Input
8 13 C1+ Make no connection to this pin.
10, 16 11, 16 C2- Connect pins together.
12, 17 10, 17 V- -2V
CC
Voltage Generated by the Charge Pump. Connect pins together.
13 14 C1- Make no connection to this pin.
14 8 V+ +2V
CC
Voltage Generated by the Charge Pump
11, 15 12, 15 C2+ Connect pins together.
PIN NAME FUNCTION
1–4, 19 T_OUT RS-232 Driver Outputs
5, 10, 13, 18, 24 R_IN RS-232 Receiver Inputs
6, 9, 14, 17, 23 R_OUT TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
7, 8, 15, 16, 22 T_IN TTL/CMOS Driver Inputs. Internal pullups to V
CC
.
11 GND Ground
12 V
CC
+4.75V to +5.25V Supply Voltage
20 EN Receiver Enable—Active Low
21 SHDN Shutdown Control—Active High
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Analog Devices │ 6
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Pin Descriptions
MAX202E/MAX232E
MAX203E
MAX205E