ATTINY20-UUR

Product Overview

• Category: Microcontroller
• Use: Embedded systems, IoT devices, and low-power applications
• Characteristics:
  • Low power consumption
  • Small form factor
  • High performance
• Package: 20-pin QFN package
• Essence: A versatile microcontroller with advanced features
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Architecture: AVR
• Flash Memory: 2KB
• SRAM: 128 bytes
• EEPROM: 128 bytes
• Operating Voltage: 1.8V - 5.5V
• Clock Speed: Up to 20 MHz
• Digital I/O Pins: 17
• Analog Input Pins: 10
• PWM Channels: 4
• Communication Interfaces: SPI, I2C, USART
• Timers/Counters: 2
• ADC Resolution: 10-bit
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ATTINY20-UUR microcontroller has a total of 20 pins, which are assigned various functions. The pin configuration is as follows:

```

---

| | --|RESET |-- PA0 (ADC0) --|RXD |-- PA1 (ADC1) --|TXD |-- PA2 (ADC2) --|INT0 |-- PA3 (ADC3) --|OC0A |-- PA4 (ADC4) --|OC0B |-- PA5 (ADC5) --|XTAL1 |-- PA6 (ADC6) --|XTAL2 |-- PA7 (ADC7) --|GND |-- VCC --|AREF |-- GND --|ADC0 |-- PCINT0 --|ADC1 |-- PCINT1 --|ADC2 |-- PCINT2 --|ADC3 |-- PCINT3 --|ADC4 |-- PCINT4 --|ADC5 |-- PCINT5 --|ADC6 |-- PCINT6 --|ADC7 |-- PCINT7 |_______| ```

Functional Features

• Low power consumption allows for extended battery life in portable devices.
• High-performance AVR architecture enables efficient execution of complex tasks.
• Multiple communication interfaces (SPI, I2C, USART) facilitate seamless integration with other devices.
• Flexible analog-to-digital conversion with 10-bit resolution for accurate sensor readings.
• PWM channels enable precise control of motors and other actuators.
• Two timers/counters provide timing and synchronization capabilities.

Advantages and Disadvantages

Advantages

• Compact size makes it suitable for space-constrained applications.
• Wide operating voltage range allows for compatibility with various power sources.
• Versatile I/O pins offer flexibility in connecting external components.
• Low-cost solution for embedded systems and IoT projects.
• Extensive documentation and community support available.

Disadvantages

• Limited flash memory and SRAM may restrict the complexity of applications.
• Lack of built-in peripherals like USB or Ethernet may require additional components for certain applications.
• Not suitable for high-performance computing tasks.

Working Principles

The ATTINY20-UUR microcontroller operates based on the AVR architecture. It executes instructions stored in its flash memory to perform various tasks. The clock speed determines the rate at which these instructions are executed. The microcontroller communicates with external devices through its digital I/O pins and communication interfaces. It can read analog signals using its built-in ADC and generate PWM signals for controlling actuators. The low-power design ensures efficient operation even in battery-powered devices.

Application Field Plans

The ATTINY20-UUR microcontroller finds applications in various fields, including:

1. Home automation systems
2. Wearable devices
3. Sensor networks
4. Industrial control systems
5. Automotive electronics
6. Consumer electronics

Alternative Models

• ATTINY10-UUR
• ATTINY25-UUR
• ATTINY45-UUR
• ATTINY85-UUR

These alternative models offer different flash memory sizes and pin configurations, allowing users to choose the most suitable microcontroller for their specific requirements.

In conclusion, the ATTINY20-UUR microcontroller is a versatile and compact device that offers high performance and low power consumption. It is widely used in embedded systems, IoT devices, and low-power applications across various industries.