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# 74HC595 Shift Register - 3 pack

**Type:** Product page · **SKU:** ADA450 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/74hc595-shift-register-3-pack.html ([markdown](https://core-electronics.com.au/74hc595-shift-register-3-pack.html.md))

Add lots more outputs to a microcontroller system with chainable shift registers. These chips take a serial input (SPI) of 1 byte (8 bits) and then output those...

## Pricing

- **Price:** $5.90 (inc GST) — $5.36 AUD, exc GST
- **Quantity discounts:** 10+ $5.20 (exc GST) · 50+ $5.09 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 3 today; more stock is typically available with a 8–12 day lead time.

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## Description

Add lots more outputs to a microcontroller system with chainable shift registers. These chips take a serial input (SPI) of 1 byte (8 bits) and then output those digital bits onto 8 pins. You can chain them together so putting three in a row with the serial output of one plugged into the serial input of another to make 3 x 8 = 24 digital outputs. You can chain pretty much as many as you want. This makes it easy to control a lot of outputs like LEDs from only 3 digital microcontroller pins.
 
 This item contains **three 74HC595 chips**!
 
 These chips are DIP package so you can easily plug them into any breadboard or perfboard with 0.1" spacing. The digital outputs are good for about 20mA, which makes them ideal for LEDs or driving power transistors (say for controlling a lot of solenoids).
 
 For an excellent tutorial on usage, check out the Arduino ShiftOut page

## Technical Details

Downloads:

- [74HC595 Datasheet](https://core-electronics.com.au/attachments/localcontent/sn74hc595_893446cea22.pdf)
 
For an excellent tutorial on usage, check out the Arduino ShiftOut page
 Using a high power shift register to drive 8x8 matrices with a NETduino

## Guides for this product

- [Our Arduino SPI Tutorial](https://core-electronics.com.au/guides/arduino/spi-arduino-tutorial/)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/4/5/450-00.jpg)