CD74HCT20E

The CD74HCT20E from Texas Instruments is a high-speed CMOS logic device containing two independent 4-input NAND gates. Each gate performs the Boolean function Y = A ● B ● C ● D in positive logic. This component is designed with TTL-compatible CMOS inputs, allowing for seamless integration with LSTTL logic levels, featuring VIL(max) of 0.8V and VIH(min) of 2V. It operates over a wide supply voltage range of 4.5V to 5.5V and a broad temperature range from -55°C to +125°C.

Key electrical characteristics include a maximum output current (IOL) of 4mA and a maximum output current (IOH) of -4mA. The device boasts a high speed with a propagation delay typically between 10-50 ns and a maximum data rate of 25 Mbps. It supports fanout up to 10 LSTTL loads, offering significant power reduction compared to LSTTL logic ICs. The CD74HCT20E is available in SOIC (D) and PDIP (N) packages.

This dual 4-input NAND gate is suitable for various digital logic applications where reliable and high-speed signal processing is required. Its compatibility with both TTL and CMOS logic families makes it a versatile choice for mixed-logic designs. The device's robust operating conditions and performance metrics ensure stable operation in demanding environments.