• MAX3232EIDR SOIC (D)-16


+/-15-kV IEC-ESD protection

Quantity Unit Price(USD) Ext. Price
1 $0.680 $0.68
10 $0.563 $5.63
30 $0.503 $15.09
100 $0.444 $44.40
500 $0.408 $204.00
1000 $0.390 $390.00


*The price is for reference only.
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  • Part Number : MAX3232EIDR

  • Package/Case : SOIC (D)-16

  • Brands : TI

  • Components Categories : Drivers, Receivers, Transceivers

  • Datesheet : MAX3232EIDR DataSheet (PDF)

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Overview of MAX3232EIDR

The MAX3232EIDR is a dual-channel RS-232 driver/receiver integrated circuit that offers versatile communication capabilities. With a maximum data rate of 120kbps and low-power shutdown mode, this IC is ideal for converting TTL/CMOS logic levels to RS-232 voltage levels and vice versa, enabling seamless interfacing between microcontrollers and RS-232 devices.


(Note: The pin configuration provided below is a general representation. Please refer to the specific datasheet for precise details.)

  • VCC: Positive power supply
  • GND: Power ground
  • SHDN: Shutdown pin
  • R2IN: Input for receiver Channel 2
  • R2OUT: Output for receiver Channel 2
  • T2IN: Input for transmitter Channel 2
  • T2OUT: Output for transmitter Channel 2
  • R1OUT: Output for receiver Channel 1
  • R1IN: Input for receiver Channel 1
  • T1OUT: Output for transmitter Channel 1
  • T1IN: Input for transmitter Channel 1

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the MAX3232EIDR IC for a visual representation.

Key Features

  • Dual-Channel RS-232 Driver/Receiver: Provides two channels for bi-directional communication.
  • Data Rate: Supports up to 120kbps, suitable for various serial communication applications.
  • Low-Power Shutdown Mode: Features a low-power shutdown mode for energy-efficient operation.
  • Wide Operating Voltage Range: Operates from a single +3.0V to +5.5V supply.
  • ESD Protection: Includes ±15kV ESD protection on the RS-232 pins for robust performance.
  • Compact Package: Housed in a space-saving 28-pin SSOP package.

Note: For detailed technical specifications, kindly refer to the MAX3232EIDR datasheet.


  • Embedded Systems: Ideal for interfacing microcontrollers and embedded systems with RS-232 devices.
  • Telecommunication Equipment: Suitable for communication systems requiring RS-232 connectivity.
  • Data Acquisition Systems: Used in data acquisition applications for reliable data transfer.


The MAX3232EIDR serves as a reliable interface between microcontrollers and RS-232 devices, enabling seamless data exchange and communication.

Usage Guide

  • Power Supply: Connect VCC (Pin 1 and Pin 16) to the supply voltage (3.0V to 5.5V).
  • Data Connections: Establish connections between the respective transmitter and receiver pins for each channel.
  • Shutdown Control: Use the SHDN pin (Pin 6) to manage the low-power shutdown mode.

Frequently Asked Questions

Q: Can the MAX3232EIDR support higher data rates?
A: The MAX3232EIDR is optimized for data rates up to 120kbps. Consider alternate devices for higher-speed requirements.

Q: Is the MAX3232EIDR suitable for battery-powered applications?
A: Yes, the MAX3232EIDR's low-power features make it suitable for battery-powered applications requiring RS-232 communication.


For similar functionalities, consider these alternatives to the MAX3232EIDR:

  • MAX3232C: A variation of the MAX3232 series with enhanced features for specific applications.
  • SP3232E: An RS-232 transceiver IC offering similar functionality with potential differences in specifications.


The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Drivers per package 2 Receivers per package 2
Logic voltage (min) (V) 3.3 Data rate (max) (MBps) 0.25
Main supply voltage (nom) (V) 3.3, 5 ESD HBM (kV) 15
Rating Catalog Operating temperature range (°C) -40 to 85, 0 to 70
Vout (typ) (V) 5.4

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