The ATmega328P-PU is a low-power, high-performance 8-bit AVR RISC-based microcontroller featuring 32KB of ISP Flash memory with read-while-write capabilities, 1KB EEPROM, and 2KB SRAM. Operating at speeds up to 20 MHz with an external crystal, it delivers efficient processing power in a breadboard-friendly 28-pin dual in-line package (DIP). Whether loaded with the Optiboot Arduino bootloader for quick programming or flashed directly via ICSP, it is the standard choice for standalone embedded control systems.
Key Features
Native Arduino Compatibility: Fully supported by the Arduino IDE; can be pre-flashed with the Arduino Uno bootloader for seamless USB-to-serial uploading.
Generous Memory Footprint: 32KB Flash program memory, 2KB SRAM, and 1KB non-volatile EEPROM for storing calibration data and user settings.
Rich Peripheral Suite: 23 programmable I/O lines, 6 PWM channels, multi-channel 10-bit ADC, UART, SPI, and I²C communication hardware.
picoPower Technology: Ultra-low power consumption modes ideal for battery-operated sensor nodes and remote loggers.
Breadboard-Friendly DIP-28 Form Factor: Easily plugs into solderless breadboards, prototyping IC sockets, and custom PCB boards.
Technical Specifications
Feature
Specification
Microcontroller Core
8-bit AVR RISC
Max Operating Speed
20 MHz
Flash Program Memory
32 KB
SRAM / EEPROM
2 KB SRAM / 1 KB EEPROM
Digital I/O Pins
23 Lines (6 PWM Channels)
Analog Inputs
6 Channels, 10-bit ADC
Communication Interfaces
USART, SPI, I²C (2-wire)
Operating Voltage
1.8V – 5.5V
Physical Dimensions (PDIP-28 Package)
Length: ~34.7 mm, Width: ~7.6 mm, Height: ~3.4 mm (excluding pins)
Estimated Weight
~2.1g
Price in Pakistan
Rs. 550
Weight
5.6 g
Dimensions
5.2 × 1.4 × 4.5 cm
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