The 74HC164 is a high-speed CMOS 8-bit Serial-In Parallel-Out (SIPO) Shift Register IC designed for expanding digital output capabilities in microcontroller and digital logic applications. It accepts serial data at its input and converts it into eight parallel outputs, allowing multiple outputs to be controlled using only a few microcontroller pins.
Built using advanced CMOS technology, the 74HC164 offers low power consumption, high noise immunity, and fast switching performance. The device features two serial data inputs and an asynchronous master reset input, making it suitable for LED control, display systems, output expansion, data storage, and digital communication applications.
The 74HC164 is widely used with Arduino, ESP32, STM32, Raspberry Pi, and other microcontrollers where additional digital outputs are required without consuming numerous I/O pins.
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