• MAX232IDR SOIC (D)-16


Dual Transceiver MAX232IDR 16-Pin SOIC T/R

Quantity Unit Price(USD) Ext. Price
1 $0.546 $0.55
10 $0.447 $4.47
30 $0.396 $11.88
100 $0.346 $34.60
500 $0.317 $158.50
1000 $0.301 $301.00


*The price is for reference only.
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Overview of MAX232IDR

The MAX232IDR is a dual EIA-232 driver/receiver IC designed to convert TTL/CMOS logic levels to RS-232 voltage levels and vice versa. It features a 120kbps data rate and comes with a low-power shutdown mode, making it ideal for various communication applications.


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

  • T1IN: Input for transmitter 1
  • T1OUT: Output for transmitter 1
  • R1IN: Input for receiver 1
  • R1OUT: Output for receiver 1
  • T2IN: Input for transmitter 2
  • T2OUT: Output for transmitter 2
  • R2IN: Input for receiver 2
  • R2OUT: Output for receiver 2
  • V+ (Pins 8, 9): Positive voltage supply
  • V- (Pins 4, 5): Negative voltage supply
  • C1+ (Pin 6): Positive terminal for capacitor C1
  • C1- (Pin 7): Ground connection for capacitor C1
  • C2+ (Pin 2): Positive terminal for capacitor C2
  • C2- (Pin 3): Ground connection for capacitor C2

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the MAX232IDR IC for a visual representation.

Key Features

  • Dual EIA-232 Driver/Receiver: Provides two channels for bi-directional communication.
  • Data Rate: Supports data rates up to 120kbps, suitable for various serial communication applications.
  • Low-Power Shutdown Mode: Features a low-power shutdown mode for power-saving applications.
  • Wide Supply Voltage Range: Operates from a dual ±5V power supply, ensuring compatibility with different systems.
  • ESD Protection: Includes ±15kV ESD protection on RS-232 I/O pins, ensuring robust performance in harsh environments.
  • Compact Package: Available in a space-saving SOIC package.

Note: For detailed technical specifications, please refer to the MAX232IDR datasheet.


  • Embedded Systems: Ideal for interfacing microcontrollers and embedded systems with RS-232 peripherals.
  • Industrial Automation: Suitable for industrial automation systems requiring RS-232 communication.
  • Telecommunication Equipment: Used in telecommunication devices for serial data transmission.


The MAX232IDR is a dual EIA-232 driver/receiver that facilitates signal conversion between TTL/CMOS and RS-232 voltage levels, enabling seamless communication between different devices.

Usage Guide

  • Power Supply: Connect V+ and V- to the dual ±5V power supply.
  • Data Connections: Connect the T1IN/R1OUT and T2IN/R2OUT pins to the respective data lines for communication.
  • Shutdown Control: Utilize the low-power shutdown mode by controlling the SHDN pin.

Frequently Asked Questions

Q: Can the MAX232IDR operate at higher data rates?
A: The MAX232IDR is designed for data rates up to 120kbps. For higher speeds, consider alternatives with higher data rate specifications.

Q: Is the MAX232IDR suitable for low-power applications?
A: Yes, the MAX232IDR features a low-power shutdown mode, making it suitable for low-power and battery-operated devices requiring RS-232 communication.


For similar functionalities, consider these alternatives to the MAX232IDR:

  • MAX3232EIDR: A similar IC offering compatibility with the MAX232IDR with enhanced features.
  • ICL232: An RS-232 transceiver IC from Intersil providing comparable functionality to the MAX232IDR.



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) 5 Data rate (max) (MBps) 0.12
Main supply voltage (nom) (V) 5 ESD HBM (kV) 2
Rating Automotive, Catalog Operating temperature range (°C) -40 to 85, 0 to 70
Vout (typ) (V) 9

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