The ATmega328P-PU is an 8-bit microcontroller from Microchip Technology, commonly used in a variety of embedded systems and development platforms. Here is a detailed description:
Description:
- Type: 8-bit Microcontroller
- Family: ATmega
- Package: PDIP-28 (Plastic Dual In-line Package, 28 pins)
- Core: AVR (Advanced Virtual RISC)
- Clock Speed: Up to 20 MHz
- Flash Memory: 32 KB
- SRAM: 2 KB
- EEPROM: 1 KB
- Operating Voltage: 1.8V to 5.5V
- Temperature Range: -40°C to 85°C (Industrial grade)
Key Features:
- High Performance: AVR core with a clock speed of up to 20 MHz, providing efficient execution of instructions.
- Memory:
- Flash Memory: 32 KB for program storage.
- SRAM: 2 KB for data storage during operation.
- EEPROM: 1 KB for non-volatile data storage.
- I/O Pins: 23 general-purpose I/O pins.
- Timers:
- Two 8-bit Timers: Useful for generating precise time delays and PWM signals.
- One 16-bit Timer: For more complex timing applications.
- Analog-to-Digital Converter (ADC): 10-bit ADC with up to 6 channels for measuring analog signals.
- Communication Interfaces:
- USART: Universal Synchronous/Asynchronous Serial Receiver/Transmitter for serial communication.
- SPI: Serial Peripheral Interface for high-speed data transfer.
- I2C: Inter-Integrated Circuit interface for communication with peripheral devices.
- Watchdog Timer: For system reset in case of software failure or unexpected conditions.
- Interrupts: External and internal interrupt sources for responsive event handling.
Applications:
- Embedded Systems: Used in a wide range of consumer electronics, industrial controls, and automation systems.
- Development Platforms: Popular in development boards like Arduino, which utilizes the ATmega328P for its versatile capabilities.
- Consumer Electronics: Suitable for devices requiring reliable and efficient control with moderate processing power.
Package Dimensions:
- PDIP-28: Plastic Dual In-line Package with 28 pins, typically used for easy prototyping and breadboard applications.
Reference Documents:
For detailed technical specifications, application circuits, and design guidelines, refer to the ATmega328P-PU datasheet available from Microchip Technology’s official website.