The 74HC164PW,118 is an integrated circuit (IC) component belonging to the 74HC series of logic gates. It is a high-speed Si-gate CMOS device with 8-bit serial-in/parallel-out shift register functionality. Here is an overview of its key features:
1. Serial Input: The IC has a single data input pin (SER) to receive the serial input bit by bit. It allows for easy cascading of multiple shift registers to expand the number of bits.
2. Parallel Outputs: The 74HC164PW,118 has 8 parallel output pins (Q0-Q7) that provide the stored data in parallel format. Each output corresponds to one bit of input data, which can be read simultaneously.
3. Clock Input: The circuit requires a clock input (CP) to synchronize the shifting operations. On each rising edge of the clock, the serial input data gets shifted by one position towards the parallel outputs.
4. Asynchronous Clear: The IC features an asynchronous active LOW clear input (CLR) that resets the register to its initial state. It ensures a predictable starting point for the data shift process.
5. Schmitt-trigger Inputs: The CP, CLR, and SER inputs employ Schmitt-trigger action. It provides hysteresis and improves noise immunity by allowing a clean clock signal even in the presence of input noise or signal distortion
