The ATtiny24/44/84 are compact microcontrollers from Atmel (now part of Microchip) in the ATtiny family. They feature 8-bit AVR architecture, with up to 14 I/O pins, 2–8 KB flash memory, and 128–512 bytes SRAM. Operating at speeds up to 20 MHz, they are ideal for low-power, small-scale embedded projects. These chips are commonly used in DIY electronics, wearables, and sensor-based applications due to their low cost and small size.
| Microcontroller | ATtiny24/44/84 |
|---|---|
| Architecture | 8-bit AVR |
| Operating Voltage | 1.8V to 5.5V |
| Clock Speed | Up to 20 MHz |
| Flash Memory | 2 KB (ATtiny24), 4 KB (ATtiny44), 8 KB (ATtiny84) |
| SRAM | 128 Bytes (ATtiny24), 256 Bytes (ATtiny44/84) |
| EEPROM | 128 Bytes (ATtiny24), 256 Bytes (ATtiny44/84) |
| Digital I/O Pins | 14 (ATtiny24), 14 (ATtiny44), 14 (ATtiny84) |
| Analog Inputs | 8 (ATtiny24/44/84) |
| PWM Outputs | 6 (ATtiny24/44/84) |
| Max DC Current per I/O Pin | 40 mA |
| Temperature Range | -40°C to 85°C |
