Microchip Technology

ATMEGA328-AUR  

Microcontrollers

The ATMEGA328-AUR is a microcontroller unit (MCU) developed by Microchip Technology. It is based on the ATmega family of 8-bit AVR microcontrollers, which are widely used in various applications due to their high performance, low power consumption, and ease of use.

Description:

The ATMEGA328-AUR is a low-power CMOS 8-bit microcontroller based on the enhanced AVR RISC architecture. It features 32 KB of In-System Programmable Flash memory for the program code, 1 KB of EEPROM, and 2 KB of SRAM. The device operates at a maximum frequency of 16 MHz and is available in a 32-pin QFN package.

Features:

1. 32 KB of In-System Programmable Flash memory with read-while-write capability
2. 1 KB of EEPROM
3. 2 KB of SRAM
4. 16 MHz maximum operating frequency
5. 32 general-purpose I/O lines
6. 33 general-purpose working registers
7. Nested interrupt controller with 2 interrupt priority levels
8. On-chip debug system with JTAG interface
9. Internal and external interrupts
10. Three 16-bit timer/counters with input capture and compare modes
11. Eight-channel, 10-bit ADC with up to 11 analog inputs
12. Serial communication interfaces: one USART and one SPI
13. USB interface (Limited functionality in ATMEGA328-AUR)
14. Power-on reset and brown-out detection
15. Sleep modes to reduce power consumption
16. Watchdog timer
17. Available in a 32-pin QFN package

Applications:

The ATMEGA328-AUR is suitable for a wide range of applications due to its versatility and low power consumption. Some common applications include:

1. Industrial control and automation systems
2. Home automation and smart appliances
3. Portable electronic devices, such as fitness trackers and smart watches
4. Battery-powered devices, where low power consumption is crucial
5. Data acquisition and signal processing systems
6. Medical devices and equipment
7. Security systems, such as access control and surveillance cameras
8. Embedded systems in automotive applications
9. Robotics and automation
10. Educational and hobbyist projects, such as Arduino-based systems

The ATMEGA328-AUR is a popular choice for many developers due to its balance of performance, power efficiency, and ease of use. It is also widely used in the Arduino Uno R3 board, which is a popular platform for prototyping and learning embedded systems.

ATMEGA328-AUR Documents

Download datasheets and manufacturer documentation for ATMEGA328-AUR

Errata :

ATmega48A/PA/88A/PA/168A/PA/328/P Errata      

PCN Assembly/Origin :

Fabrication Site 27/Sep/2023      

Datasheets :

ATmega48A/PA/88A/PA/168A/PA/328/P      

PCN Packaging :

Transfer to Microchip/Label/Pkg 5/Sep/2016       Tape and Reel Label Update 10/Feb/2015      

Design Resources :

ATmega328 Development Tool Selector      

PCN Design/Specification :

Marking Chgs 11/Jul/2017       ATmega48A/PA/88A/PA/168A/PA/328/P 10/Sep/2020      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH