Key facts
- Brand
- Atmel
- Model
- ATTINY43U
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-03-27
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Atmel ATtiny43U Datasheet
The ATtiny43U is a low‑power CMOS 8‑bit microcontroller based on Atmel's AVR RISC architecture. It offers 4 KB of in‑system programmable flash, 64 B EEPROM, 256 B SRAM, a 10‑bit ADC, two 8‑bit timer/counters with PWM, a universal serial interface and an on‑chip boost converter that supplies 3 V from low input voltages.
Pin‑out diagrams and package options are provided for the 20‑pin SOIC and 20‑pin QFN/MLF variants. Development resources, code examples and further documentation are available from Atmel's website.
Atmel ATTINY43U specifications
| Flash Memory | 4 KB |
|---|---|
| EEPROM | 64 B |
| SRAM | 256 B |
| Operating Voltage | 0.7‑1.8 V (boost) / 1.8‑5.5 V (bypassed) |
| Clock Speed | 0‑8 MHz (2.7‑5.5 V) |
| ADC Resolution | 10‑bit |
| Timers | Two 8‑bit Timer/Counters with two PWM channels |
| Package Types | 20‑Pin SOIC, 20‑Pin QFN/MLF |
| Active‑Mode Current (1 MHz) | 400 pA @ 3 V |
| Power‑Down Current | 150 nA @ 3 V |
Source: Atmel ATtiny43U Datasheet
All Atmel ATTINY43U documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the operating voltage range of the ATtiny43U?
It operates from 0.7 V to 1.8 V using the on‑chip boost converter, and from 1.8 V to 5.5 V when the boost converter is bypassed.
How much flash memory does the ATtiny43U provide?
The device includes 4 KB of in‑system programmable flash memory.
What is the operating voltage range of the ATtiny43U?
The ATtiny43U operates from 0.7 V to 1.8 V using the on‑chip boost converter, or from 1.8 V to 5.5 V when the boost converter is bypassed.
How much flash memory does the ATtiny43U provide?
It provides 4 KB of in‑system programmable flash memory.