ATtiny85 8-Bit Microcontroller

From the manufacturer of the common ATmega328P found in many Arduinos, the 8-bit ATtiny85 is an eight-pin microcontroller.

If you have a simple Arduino project and want to make it smaller in size, then the ATtiny85 is a great way to do so.

You can use the Arduino IDE and another Arduino board to program this little guy.

Specifications

• Voltage (VDD): 2.7-5.5V
  
• Program Memory: 8KB
  
• RAM: 512B
  
• EEPROM: 512B
  
• I/O Pins:
  
  • Total I/O: 6 pins
    
  • Analog Input: 4 pins
    
  • Analog Output (PWM): 2 pins
    
• Timers: 2
  
• Clock Speed: 1, 8, or 16MHz internal, or up to 20MHz with external crystal

Pinout

Arduino Related Pinout

Resources

• Datasheet
  
• Tutorial: Programming ATtiny85 with Arduino UNO
  
• Expanding the ATtiny85's IO Capacity with Shift Registers
  
  • Order 74HC595 8-Bit shift registers