MC74ACT253DG Datasheet/PDFMC74ACT253DG Application Field and Working Principle
Logic - Signal Switches, Multiplexers, Decoders
The MC74ACT253DG is a member of the advanced CMOS family with high-speed throughput and exceptional definitions of logic levels. It is an array of two 4-input multiplexers, each with two selectable outputs. It is categorized under logic - signal switches, multiplexers, decoders. The device has logic level inputs and output capability, meaning that logic level compatible devices can be directly connected together in circumstances where a larger fan-out is needed.
Data is presented to a multiplexer in the form of four D inputs, which are in turn presented to either one of each of the two Y output sets. These outputs are enabled by two select inputs, S0 and S1. When S0 and S1 are respectively low and high, the data sourced from the D0 will be enabled at Y0, and the data from D2 at Y1 respectively. When this is reversed, with S0 and S1 being respectively high and low, the data sourced from the D1 will be enabled at Y0, and the data from D3 at Y1 respectively.
The MC74ACT253DG also provides an inhibit function, when the EI (Enable-Inhibite) input is low, it disables all the outputs of both multiplexers. This is particularly useful when needing to stop transmission during heavy system loads, in order to save power or to prevent data overflow. In addition, the simultaneous high S0, S1, and EI inputs will reset both output sets to a low condition.
The primary benefit of the MC74ACT253DG is that it allows selection between two succeeding data sources. It is a universally applicable, integrated logic array which works in a variety of different logic based systems, from mobile devices to servers. In addition, the device is cost effective, meaning it can be produced in large quantities and using automation, making it incredibly time efficient when mass producing.
Indeed, there is a long list of application fields where the MC74ACT253DG can be applied. These include; programmable logic controllers, gateways, processors, embedded systems, touch screens and 3D projection systems. As a result of the large number of applications, this small and highly compatible device, has quickly become a mainstay among logic-based architectures around the world.