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ATTINY84-20PU 8-BIT 20MHz MCU (2 Pack)

Free shipping on orders over $29.99

$15.68

$ 6 .99 $6.99

In Stock

About this item

  • 8 Bit Data Bus
  • 20 MHz Max Clock Frequency
  • 8 KB Program Memory Size
  • 2.7 V to 5.5 V Operating Supply Voltage
  • 14 Pins - 12 Usable I/O Pins


If you need a MCU with high performance at low power and more usable I/O pins, then this is the MCU for you. This Atmel 8-bit AVR RISC-based microcontroller combines 8KB ISP flash memory with 12 general purpose I/O lines.


Jeff B.
Reviewed in the United States on September 15, 2017
It works! Programmed with arduino ide with an uno as isp. Fully capable without Crystal.
Ilan R
Reviewed in the United States on September 12, 2016
Works as intended; took a while to setup with Arduino. Works perfectly fine. This thing has 8 kb of total memory flash which is 1/4th of the standard Arduino Uno size. The simple code I used to read from a temperature sensor ( DHT22 / AM2302) took up ~6,000 b (6kb). Adding any further lines of code would crash the chip and or overwrite memory.Make sure your project does not include large libraries over 4kb and make sure your project in mind can fit in this chip.If you need Serial commands, make sure you have another Arduino that you can send data to ( Through Software Serial ).Try to buy a DIP socket for these if you plan to breadboard.If you have any questions or need any help, feel free to send me a message or reply!
Sierra MacLeod
Reviewed in the United States on May 23, 2015
These shipped in just two days and work exactly as described. No problems whatsoever!
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