Professional IC Distribution & Technical Solutions

The ATMEGA328P-PU is a microcontroller manufactured by Atmel (now part of Microchip Technology). Below are its specifications, descriptions, and features:

Specifications:

• Architecture: 8-bit AVR
• Flash Memory: 32 KB (with 0.5 KB used for bootloader)
• SRAM: 2 KB
• EEPROM: 1 KB
• Clock Speed: Up to 20 MHz
• Operating Voltage: 1.8V – 5.5V
• I/O Pins: 23 (6 PWM channels)
• ADC Channels: 6 (10-bit resolution)
• Communication Interfaces:
• UART (Universal Asynchronous Receiver/Transmitter)
• SPI (Serial Peripheral Interface)
• I²C (Two-Wire Interface)
• Timers/Counters: 3 (Two 8-bit, One 16-bit)
• Watchdog Timer: Yes (Programmable)
• Package: 28-pin PDIP (Plastic Dual In-line Package)
• Operating Temperature Range: -40°C to +85°C

Descriptions:

• The ATMEGA328P-PU is a low-power, high-performance microcontroller based on the AVR RISC architecture.
• It is widely used in embedded systems, Arduino boards (e.g., Arduino Uno), and DIY electronics projects.
• It supports In-System Programming (ISP) via SPI and self-programming capability for firmware updates.
• The PDIP package makes it suitable for breadboard prototyping.

Features:

• Low Power Consumption: Multiple sleep modes for energy efficiency.
• Advanced RISC Core: 131 powerful instructions, most executed in a single clock cycle.
• Brown-out Detection: Automatic reset when voltage drops below a threshold.
• On-chip Debugging: Supports debugging via JTAG (IEEE 1149.1 compliant).
• Peripheral Features:
• Analog Comparator
• USART (Universal Synchronous/Asynchronous Receiver/Transmitter)
• External and Internal Interrupt Sources

This microcontroller is widely recognized for its reliability and ease of use in embedded applications.