7408 Quad 2-Input AND Gate IC (DIP)

7408 Quad 2-Input AND Gate IC (DIP) Overview

The 7408 Quad 2-Input AND Gate IC (DIP) is a standard TTL logic device that integrates four independent 2-input AND gates in a single 14-pin package. Designed for reliable 5V operation and fast switching, the 7408 is a staple for digital design, control logic, and educational projects. Its DIP-14 form factor makes it easy to use on breadboards and through-hole PCBs, speeding up prototyping and classroom experiments.

Key Features

• Four independent 2-input AND gates in one chip
• TTL 74xx family device; typical 5V supply voltage
• High-speed switching suitable for combinational logic and gating
• Inputs and outputs compatible with common TTL and many CMOS devices
• DIP-14 package for breadboard and PCB friendly prototyping
• Stable, low-maintenance operation for long-term projects

Typical Applications

• Digital logic building blocks and combinational circuits
• Signal gating, enable/disable control, and simple decision logic
• Timing and state-machine designs when used with other 74xx parts
• Microcontroller interfacing and rapid prototyping of logic functions
• Education, lab kits, and student learning projects

Benefits for Designers and Students

• Quickly implement AND logic without discrete components
• Reliable TTL behavior simplifies interfacing with legacy logic
• Breadboard-friendly package reduces time to prototype and test
• Low maintenance and proven performance for classroom and hobby use

Specifications (General)

• Function: Four independent 2-input AND gates
• Logic family: TTL (74xx series)
• Supply voltage: 5V typical
• Package: DIP-14 (through-hole)
• Compatibility: TTL and many CMOS logic families (for interfacing)

Prototyping and Interfacing Tips

• Power the VCC pin with a regulated 5V supply and tie GND to 0V.
• Use pull-up or pull-down resistors on unused inputs to prevent floating.
• Place bypass capacitors (0.1uF) close to VCC and GND to reduce noise.
• When interfacing with 5V microcontrollers or CMOS, verify voltage thresholds and current drive compatibility.

Ordering and Notes

This DIP version of the 7408 is ideal for students, hobbyists, and engineers who prefer through-hole prototyping. It pairs well with other 74xx family devices for building larger logic systems.

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