Technical datasheet for the Atmel ATtiny24/44/84 8‑bit AVR microcontroller, covering features, specifications, pinout and electrical characteristics.
The ATtiny24/44/84 is a low‑power 8‑bit CMOS microcontroller based on Atmel's AVR RISC architecture. It offers up to 1 MIPS per MHz, a rich peripheral set and multiple power‑saving modes, making it suitable for compact, energy‑efficient designs.
The document provides detailed information on the device's memory sizes, I/O capabilities, timers, ADC, debug interface, packaging options and automotive‑grade qualification, along with electrical characteristics and programming details.
| Operating voltage | 2.7 V – 5.5 V |
|---|---|
| Flash program memory | 2 KB / 4 KB / 8 KB |
| EEPROM size | 128 B / 256 B / 512 B |
| SRAM size | 128 B / 256 B / 512 B |
| General‑purpose I/O lines | 12 |
| ADC | 10‑bit, 8 single‑ended channels, 12 differential pairs |
| Timers/Counters | Two (8‑bit and 16‑bit) each with two PWM channels |
| General purpose working registers | 32 × 8‑bit |
The active mode draws about 800 µA at 1 MHz and 2.7 V.
In power‑down mode the device consumes roughly 2.0 µA at 2.7 V.
The core includes 32 general‑purpose working registers.