ATMEGA328P-PU

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.