The ATtiny85 is a compact and versatile 8-bit AVR microcontroller from Microchip (formerly Atmel), ideal for space-constrained applications that require simple control logic, low power consumption, and efficient performance. With 8KB of Flash memory, 6 I/O pins, and built-in peripherals like ADC, PWM, and I²C/SPI/USART, the ATtiny85 is perfect for wearables, small automation systems, sensor nodes, and DIY electronics.
Its DIP-8 form factor makes it breadboard-friendly and easy to integrate into custom circuits. The ATtiny85 is also Arduino-compatible via the Arduino IDE when using libraries such as ATtinyCore or the Arduino-Tiny core.
Key Features
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Tiny but Capable: Ideal for small, low-power embedded applications
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8KB Flash + 512B SRAM: Enough for many standalone Arduino-like sketches
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DIP-8 Package: Easy to prototype with on breadboards
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Flexible Clock Options: Internal and external clock support (up to 20 MHz)
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Low Power Consumption: Supports sleep modes and power-saving features
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Arduino IDE Compatible: Easily programmable using USBASP, USBtinyISP, or Arduino as ISP
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Built-in Peripherals: ADC, timers, PWM, SPI, I2C, and more
Technical Specifications
Parameter | Value |
---|---|
Microcontroller | ATtiny85 |
Architecture | 8-bit AVR |
Flash Memory | 8KB |
SRAM | 512 Bytes |
EEPROM | 512 Bytes |
Operating Voltage | 2.7V – 5.5V |
Clock Speed (Max) | 20 MHz |
I/O Pins | 6 GPIO |
ADC Channels | 4 × 10-bit ADC |
Communication Interfaces | SPI, I2C (TWI), USART (via software) |
Package Type | DIP-8 |
Operating Temperature | -40°C to +85°C |
Package Includes
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1 × ATtiny85 Microcontroller (DIP-8)
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