74HC21D,653 – Dual 4-Input AND Gate Logic IC (SMD-14)

Description

The 74HC21D,653 is a high-speed Dual 4-Input AND Gate IC from the popular 74HC logic family. It performs the logical AND function on two sets of four inputs each. Designed using advanced silicon-gate CMOS technology, this device combines the low power consumption of standard CMOS with the high-speed capability of TTL logic, making it a versatile building block for modern digital electronics.

Each gate inside the 74HC21D operates independently, allowing for efficient integration into complex logic circuits where multiple signal conditions need to be met simultaneously. It features high noise immunity and can drive multiple LSTTL loads, ensuring reliable performance in varied digital environments. Its wide operating voltage range makes it suitable for both 3.3V and 5V system architectures.

Housed in a compact SMD-14 package, this component is ideal for space-saving PCB designs in industrial, consumer, and hobbyist electronics. Whether you are performing signal gating, logic state detection, or building sophisticated state machines, the 74HC21D provides the precise and fast switching required for high-performance digital systems.

Note: Product images are for reference only. The actual product may vary in appearance or manufacturer marking depending on stock availability. Please refer to the datasheet available in the Attachment section for complete electrical characteristics and application circuits.

Features

• Dual 4-input AND logic gates in a single package
• High-speed CMOS performance
• Wide operating voltage range (2V to 6V)
• Low power consumption typical of CMOS devices
• High noise immunity
• Drives multiple LSTTL loads
• Compact 14-pin SMD (SOIC) package
• Output capability: standard

Benefits

• Optimizes logic circuit design with multi-input gating
• High speed ensures minimal signal delay
• Compatible with both 3.3V and 5V microcontrollers and systems
• Small footprint allows for high-density board designs
• Reliable and stable operation in digital circuits
• Easy to implement in various logic-based control systems

Applications

• Digital Logic Circuit Design
• Signal Gating and Switching
• State Machine Implementations
• Industrial Control and Automation
• Embedded System Interfacing
• Combinational Logic Arrays
• Educational Electronics and Prototyping
• Consumer Electronics Hardware

Package Includes

• 1 x 74HC21D,653 Dual 4-Input AND Gate Logic IC (SMD-14)

Specifications