STMicroelectronics 74LCX139TTR Low Voltage Dual 2-to-4 Decoder/Demultiplexer

The 74LCX139TTR from STMicroelectronics is a high-performance, low-voltage dual 2-to-4 line decoder/demultiplexer integrated circuit designed to operate with a 2.3V to 3.6V power supply. This makes it particularly suitable for battery-powered applications and systems with strict power requirements. The device is part of the LCX family, which is characterized by its low power consumption and high speed operation.

The 74LCX139TTR is fabricated with an advanced CMOS technology to achieve high-speed operation while maintaining low static power dissipation. This technology also provides for the robustness of the device, ensuring a high level of performance over a wide range of operating conditions.

This decoder/demultiplexer 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 high, all outputs of the decoder are forced to a low state. When the enable input is low, the binary code present at the inputs A0 and A1 determines which one of the outputs will go high, allowing for a simple and effective data distribution mechanism.

The 74LCX139TTR is designed with a 5V tolerant input capability to allow for interfacing with 5V logic levels without the need for external components. This feature is especially beneficial in mixed-voltage environments, where the device can interface with both 3.3V and 5V systems seamlessly.

Packaged in a TSSOP16 package, the 74LCX139TTR offers a compact footprint and is well-suited for space-constrained applications. Its package is also designed for improved PCB layout, with a pinout that minimizes crosstalk and signal integrity issues.

Key applications for the 74LCX139TTR include memory decoding, data routing, and signal demultiplexing in various electronic systems such as personal computers, servers, networking equipment, and telecommunications infrastructure.

STMicroelectronics provides full support for the 74LCX139TTR with technical documentation, application notes, and design resources available to assist in the integration of this device into your next project.