MAX3232E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV IEC ESD PROTECTION
www.ti.com
SLLS664A–AUGUST 2005–REVISED APRIL 2007
DESCRIPTION/ORDERING INFORMATION (CONTINUED)
The MAX3232E device consists of two line drivers, two line receivers, and a dual charge-pump circuit with
±15-kV IEC ESD protection pin to pin (serial-port connection pins, including GND). The device meets the
requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication
controller and the serial-port connector. The charge pump and four small external capacitors allow operation
from a single 3-V to 5.5-V supply. The devices operate at data signaling rates up to 250 kbit/s and a maximum
of 30-V/µs driver output slew rate.
FUNCTION TABLES
ABC
EACH DRIVER(1)
INPUT
DIN
OUTPUT
DOUT
L
H
L
H
(1) H = high level, L = low level
EACH RECEIVER(1)
INPUT
RIN
OUTPUT
ROUT
L
H
H
L
Open
H
(1) H = high level, L = low level,
Open = input disconnected or
connected driver off
LOGIC DIAGRAM (POSITIVE LOGIC)
11
10
12
9
14
DIN1
DIN2
DOUT1
DOUT2
RIN1
7
13
8
ROUT1
ROUT2
RIN2
2
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