Key facts
- Brand
- Atmel
- Model
- ATtiny24/44/84
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 3
- Languages
- EN
- Last added
- 2026-09-29
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Atmel ATtiny24/44/84 Microcontroller Preliminary Manual
This manual introduces the ATtiny24/44/84 family, a low‑power CMOS 8‑bit AVR microcontroller with up to 20 MHz operation. It describes the device architecture, key features, and typical applications, and offers code examples for using the peripherals.
The document includes sections on features, pin‑out diagrams, detailed pin descriptions, power‑saving modes, CPU core architecture, and resources for development tools and application notes. It serves designers and engineers who need to integrate the ATtiny24/44/84 into their projects.
Atmel ATtiny24/44/84 specifications
| 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 |
Source: Atmel ATtiny24/44/84 8-bit AVR Microcontroller Datasheet
All Atmel ATtiny24/44/84 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the active mode current consumption at 1 MHz and 2.7 V?
The active mode draws about 800 µA at 1 MHz and 2.7 V.
From: Atmel ATtiny24/44/84 8-bit AVR Microcontroller Datasheet
What is the power‑down mode current consumption at 2.7 V?
In power‑down mode the device consumes roughly 2.0 µA at 2.7 V.
From: Atmel ATtiny24/44/84 8-bit AVR Microcontroller Datasheet
What is the operating voltage range for the ATtiny24/44/84?
The device operates from 1.8 V to 5.5 V for the ATtiny24V/44V/84V variants and from 2.7 V to 5.5 V for the ATtiny24/44/84.
From: Atmel ATtiny24/44/84 Microcontroller Preliminary Manual
How much flash memory is available on the ATtiny24/44/84?
The microcontroller provides 2 KB, 4 KB, or 8 KB of In‑System Programmable flash memory.
From: Atmel ATtiny24/44/84 Microcontroller Preliminary Manual
What is the operating voltage range for the ATtiny24/44/84?
The device operates from 1.8 V up to 5.5 V, with a 2.7 V lower limit for the standard ATtiny24/44/84 variants.
What are the power‑consumption figures in active mode?
In active mode at 1 MHz and 1.8 V the device draws about 300 µA.