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.