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ATMEGA328-AUR
+BOMIC MCU 8BIT 32KB FLASH 32TQFP
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ManufacturerMicrochip Technology
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Mfr. Part #ATMEGA328-AUR
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Datasheet ATMEGA328-AUR DataSheet
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In Stock7927
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Specifications
| Attribute | Value |
| Series | AVR® ATmega |
| Part Status | Active |
| DigiKey Programmable | Verified |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 23 |
| Program Memory Size | 32KB (16K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 1K x 8 |
| RAM Size | 2K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-TQFP (7x7) |
| Package / Case | 32-TQFP |
| Base Product Number | ATMEGA328 |
Overview
Description
The ATmega328-AUR is an 8-bit microcontroller from Microchip Technology, part of the AVR family. It’s widely used in embedded systems due to its balance of performance, power efficiency, and cost-effectiveness. Operating at clock speeds up to 20 MHz, it features 32 KB of flash memory, 2 KB of SRAM, and 1 KB of EEPROM, offering ample space for program storage and data retention.
The microcontroller includes 23 general-purpose I/O pins, allowing for versatile interfacing with various peripherals and sensors. It supports several communication protocols, such as SPI, I2C, and UART, making it suitable for diverse applications. The ATmega328-AUR also has built-in timers, a watchdog timer, PWM channels, and an analog-to-digital converter (ADC) with up to 10-bit resolution, enabling precise control and measurement capabilities.
Commonly found in Arduino boards, such as the Arduino Uno, it is favored by enthusiasts and professionals alike for prototyping and educational purposes. Its low power consumption and RISC architecture further enhance its appeal for battery-powered and energy-efficient designs.
The microcontroller includes 23 general-purpose I/O pins, allowing for versatile interfacing with various peripherals and sensors. It supports several communication protocols, such as SPI, I2C, and UART, making it suitable for diverse applications. The ATmega328-AUR also has built-in timers, a watchdog timer, PWM channels, and an analog-to-digital converter (ADC) with up to 10-bit resolution, enabling precise control and measurement capabilities.
Commonly found in Arduino boards, such as the Arduino Uno, it is favored by enthusiasts and professionals alike for prototyping and educational purposes. Its low power consumption and RISC architecture further enhance its appeal for battery-powered and energy-efficient designs.
Equivalent
Equivalent products to the ATMEGA328-AUR microcontroller include:
1. ATmega328P - Another variant in the same family with similar features.
2. Microchip ATmega328PB - Offers additional features and peripherals.
3. Microchip ATmega32U4 - Includes built-in USB interface.
4. Texas Instruments MSP430G2553 - Low-power microcontroller with similar performance.
5. NXP LPC11U24 - ARM Cortex-M0 microcontroller with USB capabilities.
These alternatives typically vary in terms of power consumption, peripherals, and package options.
1. ATmega328P - Another variant in the same family with similar features.
2. Microchip ATmega328PB - Offers additional features and peripherals.
3. Microchip ATmega32U4 - Includes built-in USB interface.
4. Texas Instruments MSP430G2553 - Low-power microcontroller with similar performance.
5. NXP LPC11U24 - ARM Cortex-M0 microcontroller with USB capabilities.
These alternatives typically vary in terms of power consumption, peripherals, and package options.
Features
The ATMEGA328-AUR is an 8-bit microcontroller belonging to the AVR family, produced by Microchip Technology. Key features include:
1. CPU: 8-bit AVR RISC architecture.
2. Operating Voltage: 1.8V to 5.5V.
3. Flash Memory: 32KB for program storage.
4. SRAM: 2KB for data storage.
5. EEPROM: 1KB for additional data storage.
6. Clock Speed: Up to 20 MHz.
7. I/O Pins: 23 general-purpose.
8. Timers: Three timers (two 8-bit and one 16-bit).
9. Communication Interfaces:
- USART for serial communication.
- SPI for synchronous serial data communication.
- I2C/TWI for interfacing with other devices.
10. ADC: 10-bit with 6 channels.
11. PWM: Pulse Width Modulation support on multiple pins.
12. Power-Saving Modes: Idle, ADC Noise Reduction, Power-down, Power-save, Standby, and Extended Standby.
13. Package: TQFP-32 (Thin Quad Flat Package).
These features make it suitable for applications in embedded systems, IoT devices, and hobbyist electronics projects.
1. CPU: 8-bit AVR RISC architecture.
2. Operating Voltage: 1.8V to 5.5V.
3. Flash Memory: 32KB for program storage.
4. SRAM: 2KB for data storage.
5. EEPROM: 1KB for additional data storage.
6. Clock Speed: Up to 20 MHz.
7. I/O Pins: 23 general-purpose.
8. Timers: Three timers (two 8-bit and one 16-bit).
9. Communication Interfaces:
- USART for serial communication.
- SPI for synchronous serial data communication.
- I2C/TWI for interfacing with other devices.
10. ADC: 10-bit with 6 channels.
11. PWM: Pulse Width Modulation support on multiple pins.
12. Power-Saving Modes: Idle, ADC Noise Reduction, Power-down, Power-save, Standby, and Extended Standby.
13. Package: TQFP-32 (Thin Quad Flat Package).
These features make it suitable for applications in embedded systems, IoT devices, and hobbyist electronics projects.
Pinout
The ATmega328-AUR is a microcontroller from Microchip's AVR family, packaged in a TQFP (Thin Quad Flat Pack) with 32 pins. It is commonly used in embedded systems and is featured in popular platforms like Arduino Uno.
Pin Count and Function:
1. Power Supply:
- VCC: Digital supply voltage.
- GND: Ground.
- AVCC: Supply voltage for analog functions.
- AREF: Analog reference pin for ADC.
2. Oscillator:
- XTAL1 and XTAL2: External clock inputs.
3. Digital I/O:
- 23 general-purpose I/O pins.
- Configurable as input or output.
4. Analog Inputs:
- 6 ADC channels (ADC0 to ADC5).
5. Serial Communication:
- UART: TXD and RXD for asynchronous serial communication.
- SPI: MOSI, MISO, SCK, SS.
- I2C: SDA, SCL.
6. Timers/Counters:
- 3 timers (Timer0, Timer1, Timer2).
7. Interrupts:
- External interrupts on INT0 and INT1.
8. Other Features:
- Supports PWM, EEPROM, and Watchdog timer.
These functionalities make the ATmega328-AUR versatile for various applications in electronics and robotics.
Pin Count and Function:
1. Power Supply:
- VCC: Digital supply voltage.
- GND: Ground.
- AVCC: Supply voltage for analog functions.
- AREF: Analog reference pin for ADC.
2. Oscillator:
- XTAL1 and XTAL2: External clock inputs.
3. Digital I/O:
- 23 general-purpose I/O pins.
- Configurable as input or output.
4. Analog Inputs:
- 6 ADC channels (ADC0 to ADC5).
5. Serial Communication:
- UART: TXD and RXD for asynchronous serial communication.
- SPI: MOSI, MISO, SCK, SS.
- I2C: SDA, SCL.
6. Timers/Counters:
- 3 timers (Timer0, Timer1, Timer2).
7. Interrupts:
- External interrupts on INT0 and INT1.
8. Other Features:
- Supports PWM, EEPROM, and Watchdog timer.
These functionalities make the ATmega328-AUR versatile for various applications in electronics and robotics.
Manufacturer
The ATMEGA328-AUR is manufactured by Microchip Technology Inc. Microchip Technology is a publicly traded American company that specializes in semiconductor products. It designs and manufactures microcontrollers, mixed-signal, analog, and Flash-IP integrated circuits. The company serves various industries, including automotive, consumer electronics, aerospace, industrial, and telecommunications, among others. Microchip is known for providing solutions for embedded control applications and is a prominent player in the semiconductor industry.
Application
The ATMEGA328-AUR is a versatile microcontroller commonly used in a variety of applications. It is widely used in embedded systems, IoT devices, and Arduino-based projects due to its low power consumption and high performance. Common application areas include home automation, robotics, sensor networks, and wearables. It's also used in consumer electronics for tasks such as motor control, LED lighting, and data logging. Additionally, its compatibility with various communication protocols makes it suitable for telemetry and remote control systems. Its robust features and ease of use make it a popular choice for both hobbyists and professional engineers.
Package
The ATMEGA328-AUR is a microcontroller in a TQFP (Thin Quad Flat Package) with 32 pins. It is part of the AVR 8-bit microcontroller family by Microchip Technology, commonly used in Arduino boards. The "AUR" in its name indicates it's a TQFP package with a lead-free finish.
