A pack of three 74HC595 shift register ICs. These chips take a serial input (SPI) of one byte and output those 8 bits onto 8 digital output pins. Chain multiple chips together by connecting the serial output of one to the serial input of the next — three chips give you 24 digital outputs from just 3 microcontroller pins.

DIP package for easy breadboard and perfboard use. Each output can source approximately 20mA, making them ideal for driving LEDs directly or switching power transistors for solenoids and motors.

Key Features

• 3× 74HC595 ICs – 8-bit serial-in, parallel-out shift registers
• Chainable – Daisy-chain for 16, 24, or more outputs
• ~20mA Per Output – Drive LEDs directly or switch transistors
• SPI Interface – Only 3 microcontroller pins needed
• DIP-16 Package – Breadboard and perfboard compatible

Also Available

• 74HC595 8-Bit Serial-Parallel IC (single)

Ideal For

• LED arrays and matrix displays
• Output expansion for Arduino and microcontrollers
• Driving solenoids and motors via transistors

Package Contents

• 3× 74HC595 shift register ICs

Resources

• Arduino ShiftOut Tutorial