Overview
The 7408 / 74HC08 is a standard 74-series logic chip featuring four independent 2-input AND gates. An AND gate only outputs a “High” (1) signal when both of its inputs are “High.” This makes it an essential component for hardware-based decision-making, signal masking, and building basic computers from scratch.
While the classic 7408 (TTL) is great for older systems, the 74HC08 (CMOS) version is faster, consumes less power, and is 100% compatible with modern 3.3V and 5V microcontrollers like Arduino and ESP32.
Key Features
Quad-Gate Design: Four independent AND gates in one chip—maximum efficiency for your breadboard.
High-Speed Performance: The “HC” (High-speed CMOS) version offers rapid switching times with minimal power drain.
Wide Voltage Range: Operates reliably from 2V to 6V, making it compatible with both 3.3V and 5V logic levels.
DIP-14 Package: Industry-standard dual-in-line package fits perfectly into breadboards and IC sockets.
Technical Specifications
| Feature | Specification |
| Logic Type | AND Gate |
| Number of Gates | 4 (Quad) |
| Inputs per Gate | 2 |
| Operating Voltage | 2.0V to 6.0V (HC Version) |
| Propagation Delay | ~7ns at 5V |
| Output Current | 5.2mA |
| Package Type | DIP-14 (Through-Hole) |
Truth Table
| Input A | Input B | Output Y |
| Low (0) | Low (0) | Low (0) |
| Low (0) | High (1) | Low (0) |
| High (1) | Low (0) | Low (0) |
| High (1) | High (1) | High (1) |
Reviews
Clear filtersThere are no reviews yet.