SparkFun
SparkFun Shift Register Breakout - 74HC595
A breakout board for the SOIC version of the 74HC595 8-bit shift register IC. Shift registers let you expand the number of digital outputs available on your ...
A breakout board for the SOIC version of the 74HC595 8-bit shift register IC. Shift registers let you expand the number of digital outputs available on your microcontroller by clocking in serial data and latching it to eight parallel outputs — using just three GPIO pins.
All IC pins are broken out to standard 0.1" spaced headers. The serial input and output pins are on opposite sides of the board, making it easy to chain multiple boards together for even more outputs.
Key Features
- 74HC595 Shift Register – 8-bit serial-in, parallel-out with output latches
- Chainable Design – Serial in/out on opposite sides for daisy-chaining multiple boards
- Standard Headers – 0.1" pitch for breadboard and jumper wire compatibility
- 3-Wire Control – Data, clock, and latch pins free up microcontroller I/O
Ideal For
- Expanding digital outputs on Arduino and other microcontrollers
- Driving LED arrays and multi-segment displays
- Projects requiring more outputs than available GPIO pins
Package Contents
- 1× SparkFun Shift Register Breakout (74HC595)
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- Headers
- Rows of metal pins used to plug a module into a breadboard or connect it with jumper wires. Pre-soldered headers make the module easier to use straight away without needing to solder the pins yourself.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
Find this product in
Brands
Shift Register Breakout 74HC595 Schematic
Schematic · 34.0 KB · Click any page to view full size
MM74HC595M Datasheet
Datasheet · 459.0 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 713.1 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
