Overview
The 7432 / 74HC32 is a standard 74-series logic chip containing four independent 2-input OR gates. It is a fundamental building block of digital electronics, frequently used in address decoding, control logic, and mathematical circuits such as adders.
The 74HC32 version is highly recommended for modern projects as it uses CMOS technology, allowing it to run at higher speeds while consuming significantly less power than the older 7432 TTL version. It is fully compatible with Arduino, ESP32, and Raspberry Pi logic levels.
Key Features
Quad-Gate Array: Four separate OR gates in a single chip for versatile circuit design.
Broad Compatibility: Works across a voltage range of 2V to 6V, covering both 3.3V and 5V systems.
Low Power Consumption: Optimized for battery-powered projects and energy-efficient logic.
Standard DIP-14 Form Factor: Easy to use on breadboards and fits into standard IC sockets for permanent soldering.
Technical Specifications
| Feature | Specification |
| Logic Type | OR Gate |
| Number of Gates | 4 (Quad) |
| Inputs per Gate | 2 |
| Operating Voltage | 2.0V to 6.0V |
| Quiescent Current | 2µA (Max) |
| Propagation Delay | ~13ns at 4.5V |
| Package Type | DIP-14 (Through-Hole) |
Truth Table
| Input A | Input B | Output Y |
| Low (0) | Low (0) | Low (0) |
| Low (0) | High (1) | High (1) |
| High (1) | Low (0) | High (1) |
| High (1) | High (1) | High (1) |
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