STMicroelectronics 74ACT138MTR Decoder/Demultiplexer

The 74ACT138MTR from STMicroelectronics is a high-performance, silicon-gate CMOS device that serves as a 3-to-8 line decoder/demultiplexer. This integrated circuit is designed to deliver the functionality required for a wide array of digital applications, particularly where high-speed, low-power consumption, and efficient data distribution are critical. The 74ACT138MTR is part of the AC/ACT series, which is renowned for its robustness and compatibility with TTL (Transistor-Transistor Logic) levels.

With its small footprint and surface-mount TSSOP16 (Thin Shrink Small Outline Package) form factor, the device is ideal for space-constrained applications. The package is designed for optimized PCB (Printed Circuit Board) space and improved thermal performance. The 74ACT138MTR operates over a broad voltage range from 4.5V to 5.5V, making it suitable for interfacing with standard 5V digital systems.

The device features three binary select inputs (A, B, and C) and an enable input that facilitates the easy expansion of decoding lines through the connection of multiple devices. When the enable input is high, all outputs remain in a high-impedance state, allowing for the possibility of parallel connection without the risk of bus contention.

Each of the eight outputs of the 74ACT138MTR can sink 24mA, providing good drive capabilities, which is particularly beneficial when driving LEDs or other visual indicators. The high drive also allows for the direct interfacing with bus lines, without the need for additional buffering hardware.

The device boasts a fast propagation delay, ensuring swift data processing and minimal signal lag, which is essential for high-speed digital systems. Its low quiescent current consumption contributes to energy efficiency, making it a suitable choice for battery-operated devices.

STMicroelectronics has designed the 74ACT138MTR with industry standards in mind, ensuring that it meets or exceeds the specifications required for a wide range of digital decoding and demultiplexing applications. Whether used in consumer electronics, computer peripherals, or communication systems, the 74ACT138MTR is a reliable and versatile solution for digital signal distribution and control.

Overall, the 74ACT138MTR is a testament to STMicroelectronics' commitment to providing high-quality, performance-driven components that meet the evolving needs of the electronics industry.