ON Semiconductor MC74LCX257DTR2 Quad 2-Input Multiplexer

The ON Semiconductor MC74LCX257DTR2 is a high-performance, quad 2-input multiplexer designed for integration into a wide range of digital systems. This device is part of ON Semiconductor's LCX family, which is renowned for its low voltage operation and compatibility with mixed-voltage systems. The MC74LCX257DTR2 is particularly suited for applications that require routing of data from two different sources to a single common output line.

Constructed with advanced silicon gate CMOS technology, the MC74LCX257DTR2 offers optimal speed-power performance, which makes it an excellent choice for both battery-powered and high-speed systems. It operates over a broad voltage range of 2.3V to 3.6V, and features a 5V tolerant input, ensuring that it can interface with higher voltage logic levels without additional level shifting circuitry.

The multiplexer's inputs include two select inputs (S0 and S1), four sets of data inputs (A0, A1, A2, A3, and B0, B1, B2, B3), and four outputs (Y0, Y1, Y2, Y3). The select inputs determine which set of data inputs are connected to the corresponding outputs. In addition, the device includes an active LOW enable input (OE), which can be used to place the outputs in a high-impedance state, thus facilitating bus-oriented applications.

One of the key features of the MC74LCX257DTR2 is its built-in 5Ω series resistance in the outputs, which significantly reduces line noise in applications with heavy load conditions. This feature also helps in reducing reflections on the data lines, thereby improving signal integrity. The device also offers latch-up performance that exceeds 500mA on all inputs and outputs, providing additional protection against sudden transient currents.

Available in a TSSOP-16 package, the MC74LCX257DTR2 is designed for easy PCB layout and space-saving considerations. Whether it's for data multiplexing, signal gating, or as a function generator, the MC74LCX257DTR2 is a versatile component that delivers reliable performance for designers looking to optimize their digital systems.

With its robust design and flexible functionality, the ON Semiconductor MC74LCX257DTR2 is an essential building block for modern electronic devices that require efficient data management and high signal integrity.