ATtiny24/44/84 is a high-performance, low-power AVR® 8-bit microcontroller from Microchip. It features an advanced RISC architecture, 120 powerful instructions, single-cycle execution, 32 x 8 general-purpose working registers, and fully static operation.
The ATtiny84 is a low‑power CMOS 8‑bit AVR microcontroller featuring up to 8 KB of in‑system programmable flash, 512 B EEPROM, and 512 B SRAM. It offers 12 programmable I/O lines, two timer/counters (8‑ and 16‑bit) with PWM, a 10‑bit ADC with 8 single‑ended and 12 differential channels, and various low‑power modes suitable for automotive applications.
The device is supplied in 14‑pin SOIC and 20‑pin QFN/MLF packages and complies with ISO‑TS‑16949 grade 1 automotive quality standards. It operates from 2.7 V to 5.5 V, with speed grades up to 16 MHz and a temperature range of –40 °C to +125 °C. The datasheet includes pin‑out diagrams, block diagrams, CPU core architecture, and programming guidelines.
| Operating voltage | 2.7 V – 5.5 V |
|---|---|
| Flash memory | 2 KB, 4 KB or 8 KB |
| EEPROM | 128 B, 256 B or 512 B |
| SRAM | 128 B, 256 B or 512 B |
| ADC | 10‑bit, 8 single‑ended + 12 differential channels |
| Timer/Counters | Two (8‑bit and 16‑bit) with PWM |
| Maximum clock speed | 0‑8 MHz @ 2.7‑5.5 V, 0‑16 MHz @ 4.5‑5.5 V |
| Power‑down mode current consumption | 2.0 pA at 2.7 V |
The device operates from 2.7 V to 5.5 V.
It offers 2 KB, 4 KB, or 8 KB of in‑system programmable flash memory.