Triple Transmitter Quint Receiver RS-232 28-Pin SSOP T/R

Quantity Unit Price(USD) Ext. Price
1 $0.706 $0.71
10 $0.584 $5.84
30 $0.522 $15.66
100 $0.462 $46.20
500 $0.395 $197.50
1000 $0.377 $377.00


*The price is for reference only.
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Overview of MAX3243CDBR

The MAX3243CDBR is a quad 2-input OR gate IC designed for use in digital electronics applications. This IC combines four independent OR gates in a single package, providing a compact and versatile solution for logic gate implementations.


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

  • VCC: Positive Power Supply
  • A1: Input A for Gate 1
  • B1: Input B for Gate 1
  • Y1: Output for Gate 1
  • A2: Input A for Gate 2
  • B2: Input B for Gate 2
  • Y2: Output for Gate 2
  • A3: Input A for Gate 3
  • B3: Input B for Gate 3
  • Y3: Output for Gate 3
  • A4: Input A for Gate 4
  • B4: Input B for Gate 4
  • Y4: Output for Gate 4
  • GND: Ground

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the MAX3243CDBR IC for a visual representation.

Key Features

  • Quad 2-Input OR Gates: The MAX3243CDBR includes four independent OR gates, each with two inputs, allowing for multiple logic operations within a single IC.
  • Wide Operating Voltage Range: This IC can operate with a supply voltage ranging from 4.5V to 5.5V, making it compatible with a variety of digital circuits.
  • High Speed: The MAX3243CDBR offers fast propagation delays, ensuring quick response times in digital systems.
  • Low Power Consumption: With its CMOS technology, this IC consumes minimal power, making it suitable for battery-powered applications.
  • High Noise Immunity: The MAX3243CDBR provides excellent noise immunity, ensuring reliable operation in noisy environments.

Note: For detailed technical specifications, please refer to the MAX3243CDBR datasheet.


  • Digital Logic Circuits: The MAX3243CDBR is commonly used in digital logic circuits for various applications, including signal processing, data routing, and control systems.
  • Signal Conditioning: This IC can be used for signal conditioning, such as merging and filtering signals in digital systems.
  • Control Logic: The MAX3243CDBR is suitable for implementing control logic in microprocessor-based systems, providing essential logic functions.


The MAX3243CDBR integrates four independent OR gates, each with two inputs, allowing for versatile logic operations in digital systems. It is a reliable and efficient solution for various logic gate applications.

Usage Guide

  • Power Supply: Connect VCC (Pin 1) to the positive power supply and GND (Pin 14) to ground.
  • Logic Inputs: Apply logic high (1) or low (0) signals to the input pins (A1, B1, A2, B2, A3, B3, A4, B4) to perform OR operations.
  • Output: The output pins (Y1, Y2, Y3, Y4) provide the result of the corresponding OR operations.

Frequently Asked Questions

Q: What is the maximum operating voltage for the MAX3243CDBR?
A: The MAX3243CDBR can operate with a maximum supply voltage of 5.5V.

Q: Can the MAX3243CDBR be used in low-power applications?
A: Yes, the MAX3243CDBR features low power consumption and is suitable for low-power digital electronics applications.


For similar functionalities, consider these alternatives to the MAX3243CDBR:

  • 74HC32: A quad 2-input OR gate IC with comparable performance characteristics to the MAX3243CDBR, suitable for logic gate applications.
  • CD4071: This is a CMOS quad 2-input OR gate IC offering similar functionality to the MAX3243CDBR, suitable for digital logic implementations.



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

Drivers per package 3 Receivers per package 5
Logic voltage (min) (V) 3.3 Data rate (max) (MBps) 0.25
Main supply voltage (nom) (V) 3.3, 5 Features Auto-Powerdown
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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