The 74HC21D is a high-speed Si-gate CMOS device and is pin compatible with low-power Schottky TTL (LSTTL). Manufactured by NXP Semiconductors, it is part of the 74HC family, which is known for its versatility and efficiency in a wide range of digital applications. The 74HC21D is specifically designed to function as a dual 4-input AND gate, which is fundamental in digital logic circuits.

Key Features

• Logic Type: Dual 4-input AND gate
• Package: SO14 plastic small outline package; 14 leads; body width 3.9 mm
• Operating Voltage: 2.0 to 6.0 V
• Output Current: 5.2 mA
• Power Dissipation: 500 mW
• Temperature Range: -40 °C to +125 °C
• High Noise Immunity: Ensures stable operation in electrically noisy environments
• Low Power Consumption: Suitable for battery-operated devices
• Symmetrical Output Impedance: Provides balanced drive to connected circuitry
• High Noise Margin: Guarantees reliable operation despite voltage fluctuations
• ESD Protection: HBM JESD22-A114E exceeds 2000 V, MM JESD22-A115-A exceeds 200 V
• Latch-up Performance: JESD78 Class II exceeds 100 mA

Applications

The 74HC21D is ideal for a variety of applications where logic gating is required. It is commonly used in:

• Logic circuits
• Control systems
• Embedded systems
• Signal processing
• Computer motherboards
• Networking equipment

Quality and Reliability

NXP Semiconductors is committed to delivering high-quality products. The 74HC21D is subjected to rigorous testing and quality control measures to ensure its reliability and performance in demanding environments. With its robust design and NXP's reputation for quality, the 74HC21D is a reliable choice for designers and engineers seeking a dependable dual 4-input AND gate solution.