The SN74HC251DR is a popular integrated circuit (IC) component that is commonly used in digital systems. Produced by Texas Instruments, it is a 8-input multiplexer/demultiplexer. Here is an overview of this IC component and its key features:
1. Function: The SN74HC251DR is a versatile IC that can be used as both multiplexer and demultiplexer. It can select one of eight input lines and route the data to a single output line, or it can take a single input and route it to one of eight output lines.
2. Input and Output: The IC has 8 input pins (A0-A7) and 1 output pin (Y). It also has two control pins (S1 and S0) used for selecting the desired input/output operation.
3. Triple State Outputs: The output pin (Y) of the SN74HC251DR supports a feature called "Tri-state." This means that the output can be actively driven high or low, or it can be disabled to go into a high impedance state. This is useful when multiple devices are connected to a common bus.
4. Wide Operating Voltage Range: The IC operates within a wide voltage range, from 2 V to 6 V. This makes it compatible with various digital systems and power supply configurations
