Texas Instruments MAX232E Dual RS-232 Driver/Receiver with IEC61000-4-2 Protection Data Sheet, Owner's Manual
Summary
The MAX232E is a dedicated dual driver/receiver chip designed to reliably interface legacy RS-232 signaling with modern 5V TTL/CMOS logic. It efficiently generates the necessary TIA/RS-232-F voltage levels from a single power source while providing robust ESD protection. This manual provides comprehensive technical coverage, detailing operational features up to 120 kbit/s, input tolerances (up to ±30V), and various package options. It is an essential component for embedded systems developing modems, terminals, computers, or any battery-powered device requiring industrial-grade serial communication.
Page 1 Text Content
MAX232E
DUAL RS-232 DRIVER/RECEIVER
WITH IEC61000-4-2 PROTECTION
www.ti.com
SLLS723–APRIL
FEATURES
Meets or Exceeds TIA/RS-232-F and ITU
D, DW, N, NS, OR PW PACKAGE
Recommendation V.28
(TOP VIEW)
Operates From Single 5-V Power Supply
With 1.0-µF Charge-Pump Capacitors C1+ VCC
VS+ GND
Operates up to kbit/s
C1− DOUT1
Two Drivers and Two Receivers
C2+ RIN1
±30-V Input Levels
C2− ROUT1
Low Supply Current m A Typical
VS− DIN1
ESD Protection for RS-232 Bus Pins DOUT2 DIN2
±15-k V Human-Body Model (HBM) RIN2 ROUT2
±8-k V IEC61000-4-2, Contact Discharge
±15-k V IEC61000-4-2, Air-Gap Discharge
APPLICATIONS
TIA/RS-232-F
Battery-Powered Systems
Terminals
Modems
Computers
DESCRIPTION/ORDERING INFORMATION
The MAX232E is dual driver/receiver that includes capacitive voltage generator to supply TIA/RS-232-F
voltage levels from single 5-V supply. Each receiver converts TIA/RS-232-F inputs to 5-V TTL/CMOS levels.
This receiver has typical threshold of 1.3 V, typical hysteresis of 0.5 V, and can accept ±30-V inputs. Each
driver converts TTL/CMOS input levels into TIA/RS-232-F levels. The driver, receiver, and voltage-generator
functions are available as cells in the Texas Instruments Lin ASIC™ library.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Lin ASIC is trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Copyright 2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Page Summary Contents For Texas Instruments MAX232E Dual RS-232 Driver/Receiver with IEC61000-4-2 Protection Data Sheet, Owner's Manual
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 16 |
| File Size | 358.98 KB |
| Published | June 04, 2026 |
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Frequently Asked Questions
What power source does the MAX232E use?
It operates from a single 5-V power supply to generate TIA/RS-232-F voltage levels.
Can I connect this device to various types of systems?
Yes, it is suitable for applications like TIA/RS-232-F, Battery-Powered Systems, Terminals, and Modems.
What level are the input signals expected to be?
The receiver can accept ±30-V inputs (IEC61000-4-2 protection is included).