ON Semiconductor MC74HC157AFR2 Multiplexer

The ON Semiconductor MC74HC157AFR2 is a high-performance, quad 2-input multiplexer integrated circuit from the HC family, designed to operate in a wide range of digital applications. This multiplexer (MUX) is an essential component for routing digital signals within electronic systems, offering both flexibility and efficiency in managing data paths.

Constructed with silicon gate CMOS technology, the MC74HC157AFR2 ensures low power consumption while maintaining high speed, a characteristic that makes it suitable for battery-operated and power-sensitive devices. It operates with a supply voltage range from 2V to 6V, providing compatibility with TTL (Transistor-Transistor Logic) levels while also being capable of driving large outputs with high current capability.

The MC74HC157AFR2 features four individual 2-input multiplexers with common select and enable inputs. Each multiplexer has two data inputs (A and B), one output (Y), one select input (S), and an active-low enable input (E). The select input determines which of the data inputs A or B is routed to the output Y when the enable input is active. If the enable input is high, the output is in a high-impedance state, effectively disconnecting the output from the circuit, which is useful for implementing bus-oriented systems.

The multiplexer's fast switching capability and low quiescent current make it an excellent choice for high-speed data processing, A/D and D/A conversion, signal gating, and hardware logic implementation. The MC74HC157AFR2 is available in a surface-mount SOP-16 package, which is ideal for compact PCB layouts and space-constrained applications.

ON Semiconductor's commitment to quality ensures that the MC74HC157AFR2 meets stringent standards for reliability and performance. Whether used in consumer electronics, communication systems, or complex computing hardware, this multiplexer stands out as a versatile and reliable component for digital signal routing.

For detailed specifications, application circuits, and implementation guidelines, designers and engineers are encouraged to consult the datasheet provided by ON Semiconductor.