Description
Description
The ATtiny85 is a compact and low-power 8-bit AVR RISC microcontroller designed for small embedded applications where minimal size and low energy consumption are essential. It operates at clock speeds up to 20MHz and includes 8KB of Flash memory, 512B SRAM, and 512B EEPROM for program and data storage. The device features digital I/O, 10-bit ADC channels, timer/counters, PWM support, and serial communication via SPI and USI. Its compact 8-pin DIP package makes it ideal for compact control systems, sensor nodes, wearable devices, and battery-powered applications.
Features
- 8-bit AVR RISC architecture
- Clock speed up to 20MHz
- 8KB Flash program memory
- 512B SRAM and 512B EEPROM
- 6 programmable I/O pins
- 4-channel 10-bit ADC
- PWM output support
- Timer/counters for timing and control
- SPI and USI serial communication
- Internal oscillator support
- Low power sleep modes
- Watchdog timer for reliability
- Wide operating voltage range (1.8V to 5.5V)
- Compact 8-pin DIP package
- Breadboard-friendly design
Specifications
- Model: ATtiny85
- Microcontroller Core: 8-bit AVR RISC
- Maximum Clock Frequency: 20MHz
- Flash Memory: 8KB
- SRAM: 512 Bytes
- EEPROM: 512 Bytes
- ADC Resolution: 10-bit
- Number of ADC Channels: 4
- Digital I/O Pins: 6
- PWM Channels: 2
- Communication Interfaces: SPI, USI
- Timers: 2 8-bit
- Operating Voltage Range: 1.8V to 5.5V
- Internal Oscillator: Yes
- Watchdog Timer: Yes
- Operating Temperature Range: -40C to +85C
- Package Type: 8-pin DIP
- Mounting Type: Through-Hole
- Application Type: Compact Embedded Control
Links
- 3D Model
- Datasheet
Tutorials
- Bare-Metal MCU #9 – Review; ATTiny85 from scratch
Reviews
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