ON Semiconductor MC74LCX139DR2 Dual 2-to-4 Line Decoder/Demultiplexer

The MC74LCX139DR2 from ON Semiconductor is a high-performance, dual 2-to-4 line decoder/demultiplexer integrated circuit that is designed to address the needs of high-speed memory decoders or data transmission systems. This versatile component is fabricated with an advanced CMOS technology to achieve high-speed operation while maintaining CMOS low power dissipation.

This decoder/demultiplexer is capable of converting two binary inputs into one of four mutually exclusive outputs. Each half of the device operates independently, with an active LOW enable input controlling whether the respective decoder is active or inactive. When the enable input is LOW, the decoder functions and the outputs will change based on the data on the input pins. Conversely, when the enable input is HIGH, all the outputs for that half of the device are forced to a HIGH state.

The MC74LCX139DR2 features 5V tolerant inputs, which allow for interface with 5V systems even when operating at a lower voltage, thus providing a high degree of flexibility in mixed-voltage systems. The operating voltage range is from 2.0V to 3.6V, which allows for use in various applications, from battery-powered devices to industrial systems that require lower power consumption and high-speed operation.

The device is offered in a small-outline package (SOIC), specifically in an 8-pin format (suffix DR2), which makes it suitable for space-constrained applications. It also provides guaranteed latch-up protection, which enhances the robustness of the device in environments where electronic devices might be subject to high static charges or other electrical transients.

Its fast propagation delay times and minimized power consumption make the MC74LCX139DR2 an excellent choice for implementing decoding functions in high-speed computing, telecommunications, and networking equipment. Furthermore, its compatibility with existing CMOS technologies enables it to be used in modern digital systems without requiring significant redesign or changes to the power supply architecture.

Overall, the MC74LCX139DR2 from ON Semiconductor is a reliable and efficient solution for system designers looking to optimize their high-speed digital applications with a dual 2-to-4 line decoder/demultiplexer that combines low power consumption with high-speed operation.