The TC74HCT02AF(EL) is a high-speed CMOS Quad 2-Input NOR Gate manufactured by Toshiba Semiconductor and Storage. It's part of the HCT family, offering TTL input compatibility while maintaining the low power consumption of CMOS. This device contains four independent 2-input NOR gates.

Applications

• Logic gates in digital circuits
• Combinational logic
• Control systems
• Data selection
• Signal Inversion

Features

• High Speed: tpd = 12 ns (typ.) at VCC = 5V.
• Low Power Dissipation: ICC = 4 μA (max) at Ta = 25°C.
• TTL Input Compatibility: VIH = 2.0 V (min), VIL = 0.8 V (max).
• Output Drive Capability: 10 LSTTL Loads.
• Symmetrical Output Impedance: |IOH| = IOL = 4 mA (min).
• Wide Operating Voltage Range: VCC = 4.5 V to 5.5 V.

Benefits

• Easy integration with TTL logic circuits due to TTL input compatibility.
• Reduced power consumption, leading to energy savings and longer battery life in portable devices.
• Improved system performance because of high-speed operation.
• High noise immunity ensures reliable operation even in noisy environments.
• Direct replacement for TTL NOR gates in many applications.
• Minimized board space requirements thanks to the quad-gate design.

Additional Details

The TC74HCT02AF(EL) operates from a supply voltage of 4.5V to 5.5V. The device is packaged in a small outline integrated circuit (SOIC) package, making it ideal for surface mount technology and high-density board layouts. The inputs are protected against static discharge, enhancing reliability. A NOR gate outputs a high signal only when both of its inputs are low; otherwise, the output is low.

This device typically operates over a temperature range of -40°C to +85°C. The TC74HCT02AF(EL) meets JEDEC standards for CMOS integrated circuits. The symmetrical output impedance ensures balanced signal propagation, minimizing signal distortion and improving overall system performance. High noise immunity makes it well-suited for industrial control systems and automotive applications where electrical noise is prevalent. The (EL) suffix often signifies specific packaging or environmental compliance features, such as lead-free construction.