ATTINY85-20SU

The ATTINY85-20SU is a compact and versatile microcontroller from Microchip Technology, part of the AVR family. It is designed for low-power applications and is particularly popular in embedded systems, hobbyist projects, and small electronic devices.

Key Features:

1. Architecture: The ATTINY85 is based on the 8-bit AVR RISC architecture, which allows for efficient processing and low power consumption. It features a 32-register file and a rich instruction set that enables fast execution of instructions.

2. Memory:

   • Flash Memory: The microcontroller comes with 8 KB of in-system programmable Flash memory, which is used for storing the program code.
   • SRAM: It has 512 bytes of SRAM for data storage during program execution.
   • EEPROM: The device includes 512 bytes of EEPROM, allowing for non-volatile data storage that retains information even when power is removed.

3. Clock Speed: The ATTINY85 can operate at a maximum clock speed of 20 MHz, providing sufficient processing power for a variety of applications.

4. I/O Pins: The microcontroller features 6 general-purpose I/O pins, which can be configured as either input or output. This flexibility allows for interfacing with various sensors, actuators, and other components.

5. Analog Features: It includes a 10-bit Analog-to-Digital Converter (ADC) with up to 8 input channels, enabling the microcontroller to read analog signals from sensors.

6. Timers and PWM: The ATTINY85 is equipped with two 8-bit timers and one 16-bit timer, which can be used for timing applications, generating PWM signals, and creating delays.

7. Communication Interfaces: The microcontroller supports various communication protocols, including SPI (Serial Peripheral Interface) and I2C (Inter-Integrated Circuit), allowing it to communicate with other devices and peripherals.

8. Power Consumption: The ATTINY85 is designed for low power consumption, making it suitable for battery-operated devices. It has several power-saving modes, including sleep modes that significantly reduce power usage when the device is idle.

9. Package Type: The "SU" in the part number indicates that the ATTINY85-20SU comes in a 8-pin SOIC (Small Outline Integrated Circuit) package, which is compact and suitable for space-constrained applications.

10. Operating Voltage: The microcontroller operates within a voltage range of 2.7V to 5.5V, making it compatible with a variety of power sources.

Applications:

The ATTINY85-20SU is widely used in various applications, including:

• DIY electronics projects and prototyping
• Home automation systems
• Sensor data acquisition
• Robotics and control systems
• Wearable technology
• LED lighting control

Development Tools:

Microchip Technology provides a range of development tools for the ATTINY85, including the Atmel Studio IDE, which supports programming in C and assembly language. Additionally, there are numerous libraries and community resources available to facilitate development.

In summary, the ATTINY85-20SU is a powerful yet compact microcontroller that offers a rich set of features for a wide range of applications, making it a popular choice among engineers and hobbyists alike.