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ATmega328P-PU Microcontroller IC (Without Bootloader)

SKU: V6IDAGKGXM
The ATmega328P-PU is a high-performance 8-bit AVR microcontroller from Microchip (formerly Atmel), widely used in embedded systems, automation projects, robotics, and custom electronic designs. This version is supplied without an Arduino bootloader, making it ideal for users who wish to program the microcontroller directly using an ISP programmer or burn a custom bootloader. Featuring 32KB of Flash memory, 2KB SRAM,...
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Specifications

Specifications:

Microcontroller: ATmega328P-PU
Architecture: 8-Bit AVR RISC
Package Type: PDIP-28
Bootloader: Not Preloaded
Flash Memory: 32KB (0.5KB Used by Bootloader if Installed)
SRAM: 2KB
EEPROM: 1KB
Maximum Clock Frequency: 20MHz
Operating Voltage: 1.8V to 5.5V DC
Recommended Operating Voltage: 5V DC
Digital I/O Pins: 23
PWM Channels: 6
ADC Channels: 8
ADC Resolution: 10-Bit
Timers/Counters: 2 × 8-Bit, 1 × 16-Bit
UART Interface: 1
SPI Interface: 1
I2C (TWI) Interface: 1
External Interrupts: 2
Watchdog Timer: Yes
Operating Temperature Range: -40°C to +85°C
Power Consumption: Low Power AVR Design
Programming Method: ISP (In-System Programming)
RoHS Compliant: Yes

Additional Resources

ATmega328P-PU.PDF

FAQ

1. What is the ATmega328P-PU used for?

The ATmega328P-PU is used in embedded systems, robotics, automation projects, sensor interfacing, and custom electronics applications.

2. What does "Without Bootloader" mean?

It means the microcontroller does not come preloaded with the Arduino bootloader and must be programmed using an ISP programmer or have a bootloader installed manually.

3. Is the ATmega328P-PU the same microcontroller used in Arduino Uno?

Yes, the ATmega328P is the main microcontroller used on the Arduino Uno development board.

4. How much memory does the ATmega328P-PU have?

It includes 32KB Flash memory, 2KB SRAM, and 1KB EEPROM for program storage and data handling.

5. Can the ATmega328P-PU be programmed using the Arduino IDE?

Yes, after burning the appropriate bootloader or using an ISP programmer, it can be programmed using the Arduino IDE and standard AVR development tools.

View full product details

The ATmega328P-PU is a high-performance 8-bit AVR microcontroller from Microchip (formerly Atmel), widely used in embedded systems, automation projects, robotics, and custom electronic designs. This version is supplied without an Arduino bootloader, making it ideal for users who wish to program the microcontroller directly using an ISP programmer or burn a custom bootloader.

Featuring 32KB of Flash memory, 2KB SRAM, and 1KB EEPROM, the ATmega328P-PU provides ample resources for a wide range of applications. It operates at frequencies up to 20MHz and includes multiple communication interfaces such as UART, SPI, and I2C (TWI), enabling seamless integration with sensors, displays, modules, and other peripherals.

The microcontroller is housed in a standard PDIP-28 package, making it easy to use on breadboards, development boards, and custom PCBs. It is the same microcontroller used in the popular Arduino Uno platform, making it a favorite among students, makers, and professional developers.

Key Features

  • High-performance 8-bit AVR microcontroller
  • Supplied without bootloader
  • 32KB Flash program memory
  • 2KB SRAM and 1KB EEPROM
  • Operates up to 20MHz clock frequency
  • 23 programmable I/O pins
  • Built-in ADC with 10-bit resolution
  • UART, SPI, and I2C communication interfaces
  • Multiple PWM output channels
  • Low power consumption
  • Wide operating voltage range
  • Watchdog timer and interrupt support
  • Breadboard-friendly PDIP package
  • Ideal for embedded and Arduino-compatible projects