The ATTINY261A-SUR is an 8-bit AVR RISC microcontroller designed by Microchip Tech. It features a compact design with 2KB of Flash memory, 128 bytes of SRAM, and 128 bytes of EEPROM, making it ideal for small-scale applications. With a clock speed of 20 MHz, it delivers high-performance capabilities. The microcontroller operates at a wide voltage range of 2.5V, 3.3V, and 5V, making it highly versatile. Integrated with a 20-pin SOIC package, it is suitable for low-power and space-constrained designs. The device offers robust performance across a wide temperature range of -40°C to +85°C, ensuring its durability in various environments. The ATTINY261A-SUR comes in a convenient tape and reel packaging format for efficient assembly and manufacturing processes.