Overview
The ATtiny3216 is a compact, feature-rich 8-bit microcontroller from Microchip Technology, designed for applications requiring efficient performance and advanced peripherals in a small package. Part of the ATtiny AVR family, it combines modern functionality with robust low-power operation, making it suitable for IoT, embedded systems, and battery-powered applications.
With features like high-speed timers, integrated communication interfaces, and precise analog-to-digital conversion, the ATtiny3216 provides engineers and hobbyists with a versatile solution for a wide range of projects.
Specifications
The following specifications highlight the key features of the ATtiny3216 microcontroller:
- Core Architecture: 8-bit AVR, operating up to 20 MHz
- Operating Voltage: 1.8V to 5.5V
- Flash Memory: 32 KB
- RAM: 2 KB
- EEPROM: 256 bytes
- GPIO: 18 general-purpose I/O pins
- Timers: High-speed timers with PWM support
- Analog: 10-bit ADC, DAC, and analog comparators
- Communication Interfaces: USART, SPI, and I2C
- Package: 20-pin SOIC, QFN, or DIP
Features
The ATtiny3216 is packed with features designed for modern embedded applications:
- High-Speed Core: Up to 20 MHz operation for fast data processing.
- Integrated Peripherals: Built-in USART, SPI, and I2C for flexible communication options.
- Advanced Analog: 10-bit ADC for accurate data acquisition, DAC for signal generation, and comparators for monitoring.
- Low Power Modes: Multiple sleep and standby options to reduce energy consumption.
- Compact Design: 20-pin package ideal for space-constrained projects.
- Enhanced Programmability: Supports Arduino IDE and Microchip Studio for easy code development.
Pinout and Functional Description
The ATtiny3216 features a 20-pin configuration optimized for versatile functionality. Here is an overview:
| Pin | Function |
|---|---|
| 1 (VDD) | Power supply (+1.8V to +5.5V) |
| 2-4 | GPIO pins with support for ADC, PWM, and communication protocols |
| 5 (RESET) | External reset input, also configurable as a GPIO pin |
| 6-10 | General-purpose I/O pins with ADC and DAC capabilities |
| 11 (GND) | Ground connection |
| 12-20 | GPIO pins with communication (I2C/SPI/USART) and analog functions |
Applications
The ATtiny3216 is widely used in the following applications:
- IoT devices, such as environmental sensors and connected appliances
- Home automation systems, including lighting and temperature control
- Portable and wearable electronics
- Battery-operated control systems, such as motor and actuator drivers
- DIY electronics, including LED displays and robotics projects
Programming
The ATtiny3216 is compatible with Microchip Studio and Arduino IDE, making programming straightforward for developers of all levels. Follow these steps to get started:
Development Tools
- Arduino IDE: Simplifies programming for hobbyists and educators.
- Microchip Studio: A professional IDE for AVR and SAM microcontrollers.
- Microchip START: An intuitive tool for generating initialization code and configuring peripherals.
Programming Tools
- UPDI Programmer: Universal programming and debugging interface for efficient programming.
- Third-party programmers compatible with UPDI technology.
Workflow
- Install Arduino IDE or Microchip Studio based on your preference.
- Connect the ATtiny3216 to your computer using a UPDI programmer or similar tool.
- Write and compile your code, then upload it to the microcontroller.
- Test and debug the application in your development environment.
These tools make programming the ATtiny3216 accessible and efficient for a variety of users.