ATtiny85 Pinout: Main functions, application areas and alternative models

The ATtiny85 is a popular 8-bit AVR microcontroller manufactured by Microchip Technology (formerly Atmel). Below is information about the pinout, main functions, application areas, and some alternative models you can consider:


ATtiny85 Pinout:

The ATtiny85 typically comes in a 8-pin DIP (Dual In-line Package) form factor. Its pinout consists of the following pins:

  1. Reset (PB5) - Reset pin.
  2. Digital I/O Pin 0 (PB0) - General-purpose digital I/O pin.
  3. Digital I/O Pin 1 (PB1) - General-purpose digital I/O pin.
  4. Digital I/O Pin 2 (PB2) - General-purpose digital I/O pin.
  5. Digital I/O Pin 3 (PB3) - General-purpose digital I/O pin.
  6. Digital I/O Pin 4 (PB4) - General-purpose digital I/O pin.
  7. Ground (GND) - Ground pin.
  8. VCC (VCC) - Supply voltage pin.

Main Functions:

  1. Low Power Consumption: The ATtiny85 is known for its low power consumption, making it suitable for battery-powered applications.

  2. 8KB Flash Memory: Sufficient memory for small embedded projects and IoT applications.

  3. 6 I/O Pins: Provides enough flexibility for various projects.

  4. PWM (Pulse Width Modulation): Allows for hardware PWM output on certain pins.

  5. ADC (Analog-to-Digital Converter): Capable of analog input readings for sensor interfacing.

ATTINY85 Datasheet

Download ATTINY85 Datasheet PDF.

Application Areas:

  1. Embedded Systems: Used in various embedded systems and IoT projects.

  2. Wearable Devices: Ideal for low-power wearable electronics applications.

  3. Sensor Nodes: Common in sensor nodes and data logging applications.

  4. DIY Electronics: Popular choice for hobbyists and makers due to its small size and versatility.

Alternative Models:

  1. ATtiny45: Similar to the ATtiny85 but with fewer I/O pins and a smaller memory size.

  2. ATtiny2313A: Offers more I/O pins and features but in a larger package.

  3. ATtiny84: Has more I/O pins and memory compared to the ATtiny85, suitable for more complex projects.

  4. ATmega328: More powerful than the ATtiny series, commonly used in Arduino boards.

When choosing a microcontroller for your project, consider factors such as required I/O pins, memory size, processing power, and peripherals to ensure the chosen microcontroller meets the specific requirements of your application.

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