Datasheet

ADM3232E
Rev. B | Page 5 of 12
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
C1+
1
V+
2
C1–
3
C2+
4
V
CC
16
GND
15
T1
OUT
14
R1
IN
13
C2–
5
R1
OUT
12
V–
6
T1
IN
11
T2
OUT
7
T2
IN
10
R2
IN
8
R2
OUT
9
ADM3232E
TOP VIEW
(Not to Scale)
06410-002
Figure 2. Pin Configuration
Table 3. Pin Function Descriptions
Pin No. Mnemonic Description
1, 3 C1+, C1–
External Capacitor 1 is connected between these pins. A 0.1 μF capacitor is recommended, but larger capacitors
of up to 47 μF can be used.
2 V+ Internally Generated Positive Supply (6 V Nominal).
4, 5 C2+, C2–
External Capacitor 2 is connected between these pins. A 0.1 μF capacitor is recommended, but larger capacitors
of up to 47 μF can be used.
6 V– Internally Generated Negative Supply (−6 V Nominal).
7, 14 T2
OUT
, T1
OUT
Transmitter (Driver) Outputs. These are RS-232 signal levels (typically ±6 V).
8, 13 R2
IN
, R1
IN
Receiver Inputs. These inputs accept RS-232 signal levels. An internal 5 kΩ pull-down resistor to GND is connected
on each input.
9, 12 R2
OUT
, R1
OUT
Receiver Outputs. These are TTL/CMOS output logic levels.
10, 11 T2
IN
, T1
IN
Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels.
15 GND Ground Pin. Must be connected to 0 V.
16 V
CC
Power Supply Input (3.3 V ± 0.3 V).