ON Semiconductor MC74HCT138ANG Decoder/Demultiplexer

The MC74HCT138ANG is a high-performance integrated circuit manufactured by ON Semiconductor, renowned for its precision and reliability in digital electronics. This device is a member of the high-speed CMOS family and is designed to serve as a 3-to-8 line decoder or demultiplexer, offering versatility in various applications.

With its advanced silicon-gate CMOS technology, this decoder/demultiplexer provides the user with the robustness of CMOS combined with the speed of LSTTL logic. It is capable of transforming three binary input signals into one of eight mutually exclusive outputs. The outputs are designed to drive 10 LSTTL loads, which makes the MC74HCT138ANG compatible with older TTL logic families, thereby ensuring seamless integration into a wide range of digital systems.

The device features three binary select inputs (A, B, and C), an enable input, and eight mutually exclusive outputs. The enable input is further divided into two active-low (G1, G2A) and one active-high (G2B) inputs, providing a flexible control scheme that can be used to inhibit the outputs, allowing for the possibility of expanding the decoder system without additional gating. When the enable inputs are in the correct logic state, the selected output will be low given the corresponding binary value of the select inputs.

Furthermore, the MC74HCT138ANG operates over a broad voltage range from 4.5V to 5.5V, making it suitable for interfacing with 5V logic systems. Its low quiescent current consumption ensures efficiency, which is particularly beneficial in portable and power-sensitive applications.

Encased in a 16-pin DIP (Dual In-line Package), the MC74HCT138ANG is robust and designed for easy integration into a variety of digital circuits. The device is also characterized for operation from -55°C to 125°C, making it suitable for demanding environments and ensuring reliable performance across a wide temperature range.

ON Semiconductor's MC74HCT138ANG is a logical choice for system designers who require a dependable and flexible decoder/demultiplexer capable of interfacing with various logic families in applications such as computer systems, high-speed data processing, telecommunications, and control systems.