The 7432 IC, a fundamental component in digital electronics, embodies the essence of logical operations within integrated circuits. Renowned as the Quad 2-Input OR Gate, it serves as the cornerstone for myriad applications, from basic digital logic circuits to advanced computing systems. Manufactured by industry-leading semiconductor companies such as Texas Instruments (TI), Fairchild Semiconductor, and NXP Semiconductors, the 7432 IC epitomizes reliability, versatility, and compatibility, ensuring its ubiquitous presence across diverse electronic landscapes.


How to Check IC 7432


Is 7432 a HEX OR IC?

No, the 7432 IC is not a hex OR IC. The 7432 is a quad 2-input OR gate IC, meaning it contains four independent OR gates, each with two inputs. A hex OR gate IC would contain six OR gates, but the 7432 specifically has only four.

7432 IC

What is 7432 IC

The 7432 IC, often recognized as the SN74LS32N, is a prevalent integrated circuit renowned for its role as a Quad 2-Input OR Gate, housing four independent OR gates within a single package. In operation, each gate yields a high output when either of its two inputs registers a high signal, making it pivotal for executing logical addition functions within diverse digital circuitry contexts.


Enclosed typically in a 14-pin package, this IC adheres to standard TTL (Transistor-Transistor Logic) voltage levels, commonly operating at around 5V. Its suitability for educational endeavors and practical applications in digital computing, control systems, and communication apparatus stems from its ability to facilitate straightforward yet impactful binary logical operations.


Symbol of 7432

Symbol of 7432


7432 IC Pinout

The 7432 IC is a quad 2-input OR gate, widely used in digital electronics for performing logical OR operations. This IC contains four independent OR gates, each with two inputs and one output, housed in a 14-pin Dual In-line Package (DIP). The 7432 is known for its high-speed performance and reliability in various digital circuits.


 7432 ic pinout


Pin configuration

Pin Number

Pin Name




Data Input



Data Input



Data Output



Data Input



Data Input



Data Output






Data Output



Data Input



Data Input



Data Output



Data Input



Data Input



Supply Voltage


7432 IC Function Table Diagram

The 7432 IC is designed to implement the logical OR operation, where the output is high (H) if at least one of the inputs is high. If both inputs are low (L), the output is low. The function table for the 7432 IC illustrates the relationship between its inputs and outputs clearly.

7432 IC Function Table Diagram


Absolute Maximum Ratings

Absolute Maximum Ratings


Features of 7432 IC

  • Wide Supply Voltage Range: 2.0V to 6.0V
  • Sinks or Sources 4mA at VCC = 4.5V
  • CMOS Low Power Consumption
  • Schmitt Trigger Action at All Inputs
  • ESD Protection Exceeds JESD 22:
  • 200-V Machine Model (A115-A)
  • 2000-V Human Body Model (A114-A)
  • Exceeds 1000-V Charged Device Model (C101C)
  • Range of Package Options: SO-14 and TSSOP-14
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free: "Green" Device (Note 3)


7432 IC Application & Uses

Digital Logic Circuits

The 7432 IC is a fundamental component in digital logic design. It consists of four independent OR gates, making it essential for creating complex logical functions. By combining multiple 7432 ICs, designers can build intricate circuits that perform a wide range of logical operations. This capability is crucial in designing everything from simple control panels to sophisticated computing systems.


Signal Processing

In signal processing applications, the 7432 IC is used to combine multiple input signals. This is particularly useful in systems where an output signal needs to be triggered when any one of several conditions is met. For example, in audio and video systems, the 7432 can help manage and route signals, ensuring that the correct pathways are activated based on multiple input sources.


Data Routing

The 7432 IC plays a critical role in data routing within communication systems. By using OR gates, the IC can direct data flow based on the presence of signals at its inputs. This functionality is vital in network routers and switches, where decisions must be made quickly and accurately to route data packets efficiently.


Arithmetic Logic Units (ALUs)

In microprocessors, the 7432 IC is a key component of the Arithmetic Logic Unit (ALU). The ALU performs various arithmetic and logical operations, and the OR gates in the 7432 IC are used to execute logical OR functions. This is essential for operations such as bitwise comparisons and logical evaluations, which are fundamental to processor performance.


Control Systems

Control systems often require the evaluation of multiple input conditions to determine the appropriate output action. The 7432 IC, with its OR gates, is ideal for these applications. It can combine inputs from various sensors and make decisions based on logical OR combinations, ensuring that the control system responds correctly to different scenarios.


Package Dimensions

Package Dimensions


7432 IC Datasheet PDF

Download 7432 ic datasheet pdf>>



The 7432 IC, commonly known as the Quad 2-Input OR Gate, is manufactured by several semiconductor companies, ensuring availability and compatibility across different suppliers. Among these manufacturers, Texas Instruments (TI) stands out as a prominent producer of the 7432 IC, offering high-quality integrated circuits designed to meet various application requirements.


Texas Instruments (TI), a leading semiconductor company, produces the 7432 IC as part of its extensive portfolio of logic gates and digital integrated circuits. The 7432 IC from TI maintains the same functional specifications as other manufacturers, featuring four independent OR gates within a single package. Each gate operates with two input pins and one output pin, allowing for logical OR operations in digital circuits.


Furthermore, Fairchild Semiconductor, ON Semiconductor, NXP Semiconductors, and other semiconductor companies also manufacture the 7432 IC under their respective brand names. Despite slight variations in packaging and labeling, the fundamental functionality of the 7432 IC remains consistent across different manufacturers.


These manufacturers adhere to industry standards and rigorous quality control measures to ensure the reliability, performance, and compatibility of the 7432 IC in various electronic applications. As a result, engineers and designers can confidently select the 7432 IC from their preferred manufacturer based on factors such as availability, pricing, and technical support.



In conclusion, the 7432 IC stands as a quintessential emblem of digital logic, encapsulating the essence of logical OR operations within its compact package. As semiconductor manufacturers continue to uphold stringent quality standards and innovate upon existing designs, the 7432 IC remains a steadfast cornerstone for engineers and designers alike, enabling the realization of intricate digital systems with unparalleled precision and efficiency. With its enduring legacy and unwavering performance, the 7432 IC continues to shape the evolution of digital electronics, ushering in an era of limitless possibilities and technological advancements.

SN7432N SN7432N

Texas Instruments

Gates and Inverters

3~7 Days

In Stock:5,679


  • Can the 7432 IC be used with other logic families?

    Yes, the 7432 IC is compatible with various logic families, including TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor), with appropriate voltage level considerations.

  • What happens if an input pin is left unconnected (floating) in the 7432 IC?

    Leaving an input pin unconnected (floating) can lead to unpredictable behavior. It is recommended to tie unused inputs either to ground (logic 0) or to the supply voltage (logic 1) using pull-down or pull-up resistors, respectively.

  • What are the advantages of using the 7432 IC?

    The 7432 IC provides a compact and convenient way to implement multiple OR gates in a single package. It simplifies circuit design, reduces component count, and saves board space.

  • Are there any limitations or considerations when using the 7432 IC?

    Like other logic gates, the 7432 IC has certain limitations, such as maximum current and voltage ratings, propagation delay, and power dissipation. It is essential to operate the IC within its specified operating conditions to ensure proper functionality and reliability.

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