ATMEGA328P-AU
IC MCU 8BIT 32KB FLASH 32TQFP
AVR® ATmega Microcontroller IC 8-Bit 20MHz 32KB (16K x 16) FLASH 32-TQFP (7×7)
| Product Attribute | Attribute Value |
| Manufacturer: | Microchip |
| Product Category: | 8-bit Microcontrollers – MCU |
| Core: | AVR |
| Program Memory Size: | 32 kB |
| Data RAM Size: | 2 kB |
| Package / Case: | TQFP-32 |
| Maximum Clock Frequency: | 20 MHz |
| ADC Resolution: | 10 bit |
| Number of I/Os: | 23 I/O |
| Supply Voltage – Min: | 1.8 V |
| Supply Voltage – Max: | 5.5 V |
| Mounting Style: | SMD/SMT |
| Data Bus Width: | 8 bit |
| Minimum Operating Temperature: | – 40 C |
| Maximum Operating Temperature: | + 85 C |
| Series: | ATmega328P |
| Packaging: | Tray |
| Brand: | Microchip Technology |
| Data RAM Type: | SRAM |
| Data ROM Size: | 1 kB |
| Data ROM Type: | EEPROM |
| Height: | 1 mm |
| Interface Type: | I2C, SPI, USART |
| Length: | 7 mm |
| Moisture Sensitive: | Yes |
| Number of ADC Channels: | 8 Channel |
| Number of Timers/Counters: | 3 Timer |
| Processor Series: | megaAVR |
| Product: | MCUs |
| Product Type: | 8-bit Microcontrollers – MCU |
| Program Memory Type: | Flash |
| Factory Pack Quantity: | 250 |
| Subcategory: | Microcontrollers – MCU |
| Tradename: | AVR |
| Width: | 7 mm |
| Unit Weight: | 0.002469 oz |
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1. What is the ATMEGA328P-AU?
The ATMEGA328P-AU is an 8-bit microcontroller from the AVR series developed by Atmel (now part of Microchip Technology). It is widely used in embedded systems, particularly in open-source hardware projects such as Arduino. This microcontroller offers a balance of performance and power efficiency, making it suitable for a wide range of applications.
2. What are the key features of ATMEGA328P-AU?
Architecture: AVR 8-bit RISC (Reduced Instruction Set Computing).
Clock Speed: Up to 20 MHz.
Flash memory: 32 KB (with 0.5 KB for the bootloader).
I/O Pins: 23 general-purpose I/O pins.
Peripherals: Includes 3 timers/counters, 6 ADC channels, USART, SPI, and TWI (I2C).
Low Power: Multiple low-power sleep modes for battery-operated devices.
Package: QFN (Quad Flat No-lead) surface-mount package (ATMEGA328P-AU).
3. Where can I purchase ATMEGA328P-AU?
You can purchase the ATMEGA328P-AU from various electronics distributors and suppliers. One of the leading suppliers of microcontrollers and semiconductors is ATFU, a reputable distributor of high-quality electronic components. ATFU offers competitive prices and excellent customer service for sourcing microcontrollers like the ATMEGA328P-AU.
4. What are the typical applications of the ATMEGA328P-AU?
The ATMEGA328P-AU is commonly used in:
Embedded systems for hobbyists and professionals.
Arduino development boards (such as Arduino Uno).
IoT devices, sensor networks, and wearable tech.
Robotics and automation.
Consumer electronics requiring low-power control systems.
5. How can I program the ATMEGA328P-AU?
The ATMEGA328P-AU can be programmed using various methods, including:
Arduino IDE: You can use the Arduino development environment and a compatible USB-to-serial adapter to upload sketches to the microcontroller.
AVR-GCC: Using the GNU Compiler Collection (GCC) for AVR, you can compile your programs and upload them using tools like avrdude.
Atmel Studio: Atmel Studio provides a full suite for developing and debugging AVR applications.
6. What makes ATMEGA328P-AU different from other microcontrollers?
Compared to other 8-bit microcontrollers, the ATMEGA328P-AU stands out due to its:
High performance for low-power devices.
Rich set of peripherals, including multiple timers, ADC channels, and communication interfaces.
Wide community support, especially within the Arduino ecosystem, making it easier to get started for beginners.
7. What are the power consumption characteristics of the ATMEGA328P-AU?
The ATMEGA328P-AU has various low-power modes, including:
Idle Mode: The CPU is halted, but peripherals continue to operate.
Power-down Mode: The oscillator stops, and most peripherals are disabled, offering the lowest power consumption.
