ATtiny85-20PU 8-Bit AVR Microcontroller – 8-Pin DIP MCU IC

The ATtiny85-20PU is a compact 8-bit AVR microcontroller designed for small embedded systems, DIY electronics, automation projects, sensor interfacing and low-power applications where space and component count are important.

It is based on the AVR RISC architecture and provides programmable Flash memory, SRAM, EEPROM, digital I/O, timers, ADC functions and serial communication features in a compact 8-pin DIP package. Its small size makes it especially suitable for projects that do not require the larger number of I/O pins available on standard Arduino or ATmega-based boards.

The ATtiny85-20PU can operate at clock speeds of up to 20 MHz, depending on supply voltage and configuration. It can be programmed using compatible AVR programmers or through Arduino-based ISP programming methods.

This microcontroller is commonly used in LED control circuits, sensor projects, mini automation systems, PWM control, compact robotics, wearable electronics, timers, alarms, simple controllers and custom embedded devices.

Its DIP package is convenient for breadboard prototyping, IC sockets and through-hole PCB designs, making it suitable for students, hobbyists, developers and electronics technicians.

Key Features

• 8-bit AVR RISC microcontroller
• Compact 8-pin DIP package
• Up to 20 MHz operating frequency
• 8 KB programmable Flash memory
• EEPROM and SRAM onboard
• Multiple programmable I/O pins
• ADC support
• PWM capability
• Timer/counter functions
• USI serial communication support
• Low-power operating modes
• Suitable for breadboard and PCB projects
• Ideal for compact embedded applications

Specifications

Note: Exact electrical characteristics, operating frequency and peripheral availability should be verified from the ATtiny85 datasheet for the intended design.