The ATtiny45-20PU is a compact yet powerful microcontroller. The ATtiny45-20PU focuses on efficiency and versatility. This 8-bit AVR RISC-based device is perfect for a variety of projects. It excels in applications where space and power consumption are limited. With 4Kb of ISP flash memory, 256B EEPROM, and 256B SRAM, it offers ample space for your code and data. Six GPIO pins are ready for various inputs and outputs. The device includes 32 general purpose working registers and a handy 8-bit timer/counter. This allows for precise control and timing in your projects. The ATtiny45 operates within a voltage range of 2.7 to 5.5 volts. It easily fits into any design thanks to its DIP8 package. This makes it an ideal choice for hobbyists and professionals.