The MC74HC251D is an integrated circuit (IC) component that belongs to the 74HC family of high-speed CMOS (Complementary Metal-Oxide-Semiconductor) logic chips. This particular IC is an 8-bit multiplexer and is commonly used in digital electronics applications. Here is an overview of the MC74HC251D and its key features:
1. Multiplexer Functionality: The MC74HC251D is primarily designed to combine multiple input signals, such as data or control signals, into a single output. It has 8 input channels labeled from A0 to A7 and a select input to choose the desired channel.
2. Wide Operating Voltage Range: The IC operates over a wide supply voltage range of 2 to 6 volts, making it suitable for use with various power supply configurations.
3. High-Speed Performance: As part of the 74HC series, the MC74HC251D offers high-speed operation, ensuring efficient data processing and response times. This makes it suitable for applications demanding quick switching and multiplexing.
4. CMOS Technology: The IC is based on CMOS technology, providing low power consumption and improved noise immunity compared to older logic families. It offers balanced noise immunity in both high and low states.
5. Output Enable Function: The MC74HC251D includes an active low output enable (OE) input
