NLV74ACT139DR2G

Introduction

The NLV74ACT139DR2G is a low-voltage, four-channel decoder/demultiplexer that is available in the small SOT-143 package. With its low relative power dissipation, high speed and low-skew characteristics, it is commonly used for signal switching, multiplexing and decoding.

Application Field

The NLV74ACT139DR2G is designed to be used in a wide range of applications, from memory decoding and port expansion to industrial instrumentation. It is able to decode one, two or 4-bit enabling inputs and it can be used for a variety of purposes, such as in the computer i/o bus, the bus controller, the serial data bus and in general-purpose computing applications. It is also suitable for audio systems and digital ICs that require low power, high performance and low-skew characteristics.

Working Principle

The NLV74ACT139DR2G is a versatile decoder/demultiplexer that provides four output channels. The device can be used as a single-output decoder with four enable pins, or as a four-output demultiplexer with two enable pins. When used as a single-output decoder, each enable input is connected to a unique address input, with two zeros added to the decoded output. When used as a four-output demultiplexer, the two enable pins are asserted low to de-assert all output pins. By combining the four separate outputs, any of the sixteen possible addresses can be decoded.

The NLV74ACT139DR2G provides high-speed logic and low-skew between the outputs. It operates from a single 3V to 3.6V power supply and is guaranteed for operation down to 1V. The device is built using high-performance low-power CMOS, resulting in low power dissipation and standby current. It also includes power-on reset circuitry, which ensures that the outputs are in the low or high-impedance state until power is applied.

Conclusion

The NLV74ACT139DR2G is a versatile decoder/demultiplexer that is suitable for a variety of applications, including port expansion and audio systems. Its low relative power dissipation, high speed and low-skew characteristics make it an ideal choice for signal switching, multiplexing and decoding. Its range of features make it well suited for a wide range of applications.