Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | AVR® ATmega |
| ProductStatus | Active |
| CoreProcessor | AVR |
| CoreSize | 8-Bit |
| Speed | 20MHz |
| Connectivity | I²C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| NumberofI/O | 23 |
| ProgramMemorySize | 32KB (16K x 16) |
| ProgramMemoryType | FLASH |
| EEPROMSize | 1K x 8 |
| RAMSize | 2K x 8 |
| Voltage-Supply(Vcc/Vdd) | 1.8V ~ 5.5V |
| DataConverters | A/D 8x10b |
| OscillatorType | Internal |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 32-TQFP |
Overview
Description
The ATMEGA328P-AUR is a microcontroller from the AVR family, produced by Microchip Technology. It's known for its balance of performance, power efficiency, and ease of use. With a modified Harvard architecture, it features an 8-bit RISC processor and delivers throughput approaching 1 MIPS per MHz.
The microcontroller includes 32KB of flash memory, 2KB of SRAM, and 1KB of EEPROM, making it suitable for a wide range of applications. It operates at voltages between 1.8V and 5.5V and can run at speeds up to 20MHz. Key peripherals include a 10-bit ADC, PWM channels, timers, and various communication interfaces like I2C, SPI, and UART.
The ATMEGA328P-AUR is commonly found in Arduino boards, such as the Arduino Uno, making it popular in both hobbyist and professional electronics projects. Its compact 32-pin TQFP package, alongside low-power sleep modes, makes it ideal for battery-powered devices. Its robustness and versatility have cemented its status as a staple in embedded systems development.
The microcontroller includes 32KB of flash memory, 2KB of SRAM, and 1KB of EEPROM, making it suitable for a wide range of applications. It operates at voltages between 1.8V and 5.5V and can run at speeds up to 20MHz. Key peripherals include a 10-bit ADC, PWM channels, timers, and various communication interfaces like I2C, SPI, and UART.
The ATMEGA328P-AUR is commonly found in Arduino boards, such as the Arduino Uno, making it popular in both hobbyist and professional electronics projects. Its compact 32-pin TQFP package, alongside low-power sleep modes, makes it ideal for battery-powered devices. Its robustness and versatility have cemented its status as a staple in embedded systems development.
Equivalent
Equivalent products to the ATMEGA328P-AUR include:
1. Microchip ATMEGA328P-PU: A DIP variant with similar features.
2. Microchip ATMEGA32U4: Offers USB capability.
3. Microchip ATMEGA168: Has less memory but similar peripherals.
4. STMicroelectronics STM32F030: ARM Cortex-M0 with comparable performance.
5. NXP LPC1111: ARM Cortex-M0 suitable for similar applications.
Ensure compatibility with your specific requirements when selecting an equivalent.
1. Microchip ATMEGA328P-PU: A DIP variant with similar features.
2. Microchip ATMEGA32U4: Offers USB capability.
3. Microchip ATMEGA168: Has less memory but similar peripherals.
4. STMicroelectronics STM32F030: ARM Cortex-M0 with comparable performance.
5. NXP LPC1111: ARM Cortex-M0 suitable for similar applications.
Ensure compatibility with your specific requirements when selecting an equivalent.
Features
The ATMEGA328P-AUR is a microcontroller from Microchip Technology, part of the AVR family. It features an 8-bit RISC architecture, offering high performance with low power consumption. Key features include:
- CPU: 8-bit AVR with 32 KB of flash memory, 1 KB of EEPROM, and 2 KB SRAM.
- Operating Voltage: Ranges from 1.8V to 5.5V.
- Speed: Up to 20 MHz clock frequency.
- I/O Ports: 23 general-purpose I/O pins.
- Timers: Three timers/counters—two 8-bit and one 16-bit.
- Communication Interfaces: Supports USART, SPI, and I2C (TWI).
- PWM Channels: Six PWM channels for motor control and signal modulation.
- ADC: 10-bit Analog-to-Digital Converter with up to 8 channels.
- Watchdog Timer: With a separate on-chip oscillator.
- Sleep Modes: Various modes for power saving.
- Package: Available in TQFP-32 package.
- Additional Features: Internal and external interrupt sources, programmable serial USART, and a temperature sensor.
The ATMEGA328P-AUR is commonly used in embedded applications, including Arduino projects, due to its versatility and robust feature set.
- CPU: 8-bit AVR with 32 KB of flash memory, 1 KB of EEPROM, and 2 KB SRAM.
- Operating Voltage: Ranges from 1.8V to 5.5V.
- Speed: Up to 20 MHz clock frequency.
- I/O Ports: 23 general-purpose I/O pins.
- Timers: Three timers/counters—two 8-bit and one 16-bit.
- Communication Interfaces: Supports USART, SPI, and I2C (TWI).
- PWM Channels: Six PWM channels for motor control and signal modulation.
- ADC: 10-bit Analog-to-Digital Converter with up to 8 channels.
- Watchdog Timer: With a separate on-chip oscillator.
- Sleep Modes: Various modes for power saving.
- Package: Available in TQFP-32 package.
- Additional Features: Internal and external interrupt sources, programmable serial USART, and a temperature sensor.
The ATMEGA328P-AUR is commonly used in embedded applications, including Arduino projects, due to its versatility and robust feature set.
Pinout
The ATmega328P-AUR is an 8-bit microcontroller from Microchip Technology, part of the AVR family. It comes in a TQFP (Thin Quad Flat Package) with 32 pins. Here are the key functions and pin assignments:
1. Power Supply:
- VCC, GND: Power supply and ground.
- AVCC, AGND: Analog power supply and ground for ADC.
2. Digital I/O:
- 23 programmable I/O lines.
3. Analog Inputs:
- 6-channel 10-bit ADC.
4. Communication Interfaces:
- UART (Universal Asynchronous Receiver/Transmitter).
- SPI (Serial Peripheral Interface).
- I2C (Two-wire Serial Interface).
5. Timers:
- Three Timer/Counters: Two 8-bit and one 16-bit.
6. PWM:
- Six PWM outputs.
7. External Interrupts:
- Two external interrupts (INT0, INT1).
8. Reset:
- RESET: Active low reset input.
9. Oscillator:
- XTAL1, XTAL2: For crystal oscillator input.
Each pin can serve multiple functions, which can be configured via software. The microcontroller is popular in embedded systems, particularly in Arduino boards, due to its versatility and ease of use.
1. Power Supply:
- VCC, GND: Power supply and ground.
- AVCC, AGND: Analog power supply and ground for ADC.
2. Digital I/O:
- 23 programmable I/O lines.
3. Analog Inputs:
- 6-channel 10-bit ADC.
4. Communication Interfaces:
- UART (Universal Asynchronous Receiver/Transmitter).
- SPI (Serial Peripheral Interface).
- I2C (Two-wire Serial Interface).
5. Timers:
- Three Timer/Counters: Two 8-bit and one 16-bit.
6. PWM:
- Six PWM outputs.
7. External Interrupts:
- Two external interrupts (INT0, INT1).
8. Reset:
- RESET: Active low reset input.
9. Oscillator:
- XTAL1, XTAL2: For crystal oscillator input.
Each pin can serve multiple functions, which can be configured via software. The microcontroller is popular in embedded systems, particularly in Arduino boards, due to its versatility and ease of use.
Manufacturer
The ATMEGA328P-AUR is manufactured by Microchip Technology Inc. Microchip Technology is a public American company that specializes in designing and manufacturing microcontrollers, memory, analog, and interface products. The company is known for its comprehensive portfolio of embedded control solutions, which are used in various applications across consumer, automotive, industrial, and communications markets. Microchip provides a multitude of development tools, reference designs, and technical support, catering to engineers and developers to design embedded systems efficiently.
Application
The ATMEGA328P-AUR microcontroller is widely used in various application areas due to its versatility and low power consumption. Common applications include:
1. Embedded Systems: Serves as the core for small-scale embedded systems.
2. Arduino Projects: Integral to Arduino Uno boards, popular in prototyping and educational projects.
3. Consumer Electronics: Used in devices such as home automation systems and remote controls.
4. Industrial Automation: Facilitates control and automation in industrial settings.
5. IoT Devices: Powers smart devices and IoT applications due to its connectivity options.
6. Wearable Technology: Suitable for wearable tech given its low power features.
Its ease of programming and robust performance make it a favorite among hobbyists and professionals alike.
1. Embedded Systems: Serves as the core for small-scale embedded systems.
2. Arduino Projects: Integral to Arduino Uno boards, popular in prototyping and educational projects.
3. Consumer Electronics: Used in devices such as home automation systems and remote controls.
4. Industrial Automation: Facilitates control and automation in industrial settings.
5. IoT Devices: Powers smart devices and IoT applications due to its connectivity options.
6. Wearable Technology: Suitable for wearable tech given its low power features.
Its ease of programming and robust performance make it a favorite among hobbyists and professionals alike.
Package
The ATMEGA328P-AUR is a microcontroller in a TQFP (Thin Quad Flat Package) with 32 pins. It is a surface-mount package often used in compact and space-constrained electronic circuit designs.
