74LS40 Dual 4 Input Nand Buffer

Product Overview

The 74LS40 is a high-speed Low-Power Schottky (LS) logic integrated circuit featuring two independent 4-input NAND buffers. Designed specifically for high fan-out buffering, line driving, and digital logic distribution, this IC provides elevated output current capabilities while maintaining low power dissipation across standard TTL switching environments.

Key Features

Containing dual 4-input NAND gates, the 74LS40 delivers robust current sink and source capacities ideal for driving heavy logic loads, high capacitance lines, and bus systems without logic level degradation. Encapsulated in a user-friendly 14-pin dual in-line package (DIP-14), it seamlessly integrates into breadboards, prototyping sockets, and standard printed circuit boards operating at a nominal 5V power supply.

Applications

Commonly employed in legacy computing platforms, logic clock distribution, bus driver configurations, and digital system design where standard TTL gate outputs lack the necessary drive capability.