CD74HC138MT

The CD74HC138MT can be classified as Logic - Signal Switches, Multiplexers, Decoders. It is designed to feed down binary electrical signals from a high voltage source, by way of an eight input detection circuit, down to a low voltage output. It is created using CMOS technology and fast switching circuits in order to function at medium speed, with a very low power consumption.

The CD74HC138MT contains two 8-input multiplexers and two 3-input decoders. Each multiplexer allows a single pair of inputs to be selected from up to eight depending on the 3-bit binary input A, B, and C. The two multiplexers are combined with the two decoders to make sure the proper selection is used, thus allowing more reliable operation even in a system that may have incomplete information. The decoders also work as selectors to detect input B when their enable input E is high.

The CD74HC138MT is also created using CMOS technology to ensure compatibility with TTL systems. This also allows for a very low power consumption. The switching speed of the device depends on the on-chip logic circuit, but in general, it can be sufficient for a large variety of applications. It is also designed for low power usage and can be used for multiplexing in a variety of applications.

The CD74HC138MT comes in the SOIC-14 package, yet it is also available in PDIP and PLCC packages. All the packaging options allows for easy customization of the pinouts, which should be considered when ordering the device. The device also features an ESD rating of between 2kV to 8kV dependent on which packaging style is used.

In terms of applications, the CD74HC138MT can be used for a variety of devices, such as decoders, multiplexers, optical interface devices, and analog digital converters. It can be used as an address decoder for memory devices and as an address multiplexer for programmable logic, such as microcontrollers. It is also used in designs where a low power consumption is required, such as battery powered systems.

Using the CD74HC138MT, a signal from a high voltage source can be converted to a low voltage output. Its multiplexers and decoders can be used to ensure reliable operation even in incomplete information situations. Its low power consumption and several package options, makes it suitable for a variety of applications.