ON Semiconductor MC74LCX139DTR2G Dual 2-to-4 Decoder/Demultiplexer

The MC74LCX139DTR2G from ON Semiconductor is a high-performance, dual 2-to-4 decoder/demultiplexer integrated circuit designed to operate with a 2.3V to 3.6V power supply, making it ideal for low voltage and low power applications. This device is part of the LCX family, which offers devices with 5V tolerant inputs, allowing for interface compatibility with 5V systems.

Constructed with advanced silicon-gate CMOS technology, the MC74LCX139DTR2G ensures minimal power consumption while maintaining high-speed operation. The device is capable of sinking 24mA and sourcing 24mA on its outputs, providing robust drive capabilities. It features two individual 2-to-4 decoders, each with an address input (A0, A1), an active-low enable input (E\), and four mutually exclusive outputs (O0 to O3).

When the enable input is held high, all the outputs of the decoder are forced to a low state. Conversely, when the enable input is active-low, the binary value presented on the address inputs determines which single output will transition to a high state, while the remaining outputs stay low. This makes the MC74LCX139DTR2G an excellent choice for implementing logic functions, routing and control applications, and memory address decoding in complex digital systems.

The device is offered in a TSSOP-16 package, which is surface-mountable and suitable for automated assembly processes, making it a convenient choice for high-volume manufacturing. The package is also designed for optimal space-saving on PCBs, a critical factor in modern compact electronic designs.

ON Semiconductor ensures that the MC74LCX139DTR2G adheres to strict quality and performance standards. The device is fully specified for partial power-down applications using Ioff, which helps prevent damaging current backflow through the device when it is powered down. Furthermore, the MC74LCX139DTR2G is characterized for operation from -40°C to +85°C, providing reliable performance across a wide range of environmental conditions.

With its low power consumption, high-speed operation, and 5V input tolerance, the MC74LCX139DTR2G is a versatile component that meets the needs of a variety of digital logic applications, from consumer electronics to industrial control systems.