The MM74HC257M is an integrated circuit (IC) component that belongs to the 74HC series of ICs. It is a Quad 2-input multiplexer with 3-state outputs. This versatile IC performs multiplexing, which allows multiple inputs to be selected and routed to a single output.
Key Features of MM74HC257M:
1. Quad 2-Input Multiplexer: The MM74HC257M contains four independent 2-input multiplexers in a single chip. Each multiplexer can select one input from two sources and output it.
2. 3-State Outputs: The IC features 3-state outputs, which means that the outputs can be put in a high-impedance state where they effectively disconnect from the connected circuit. This feature is useful when multiple ICs are connected in parallel, and only one needs to drive the output.
3. High Speed Operation: The MM74HC257M operates at high speed, allowing for fast switching between inputs and delivering quick outputs.
4. Wide Operating Voltage Range: The IC is designed to be compatible with a wide range of supply voltages. It can operate anywhere between 2V to 6V, making it suitable for various power supply configurations.
5. Schmitt Trigger Inputs: The multiplexer input pins are equipped with Schmitt triggers, which enable the IC to deliver improved noise immunity and better performance in the presence of noisy signals
