The MC74HC251N is an integrated circuit (IC) component that belongs to the 74HC series, which stands for High-Speed CMOS Logic Family. It is a multiplexer with data selectors and has 8 channels. The MC74HC251N can be used in various applications where multiple inputs need to be selected and routed to a single output. Here are some key features of this component:
1. High-Speed CMOS Technology: The MC74HC251N utilizes CMOS technology, which provides a faster switching speed compared to other logic families. This makes it suitable for high-speed applications where quick data selection is required.
2. Multiplexer Functionality: This IC acts as an 8-channel multiplexer, allowing selection of one of the eight data inputs to be routed to the single output. It effectively reduces the number of output lines required to transmit data from multiple sources to a common destination.
3. Data Selection Inputs: The MC74HC251N has three data selection inputs, A, B, and C. These inputs determine which one of the eight data inputs is selected. The combination of these inputs specifies the channel to be chosen.
4. Enable Input: It also features an enable input, E, which when low (logical 0), disables the multiplexing function and forces the output to a high-impedance state. This is useful when the data selection needs to be temporarily halted or reset
