74HC595 8-Bit Serial to Parallel Shift Register

The 74HC595 is a high-speed CMOS 8-bit serial-in, parallel-out shift register with a storage register and 3-state outputs. It allows you to control multiple digital outputs using only a few microcontroller pins, making it a popular choice for expanding I/O in Arduino, Raspberry Pi, and other embedded systems.

With its serial data input and shift register clock, you can cascade multiple 74HC595 ICs to control dozens of outputs while using minimal wiring. The device includes an output latch that holds data stable until updated, ensuring flicker-free operation in LED displays and other output devices. It operates over a wide voltage range and is TTL-compatible, making it versatile for various digital projects.

Packaged in a DIP-16 form factor, it is breadboard-friendly and perfect for prototyping. This IC is commonly used in LED matrix displays, 7-segment multiplexing, relay drivers, and any project needing extra digital outputs without increasing microcontroller pin count.