ATMEGA328P-AU, 8bit AVR Microcontroller, 20MHz, 32 kB Flash, 32-Pin TQFP

Description: A low-power, high-performance 8-bit AVR microcontroller, the ATMEGA328P-AU was created by Microchip Technology. High Performance AVR Core: Executes strong commands in a single clock cycle. Throughputs reach 1 MIPS per MHz. Balances power usage and processing speed well. Memory: 32 kB of in-system programmable flash. 1024 byte EEPROM. 2 kB SRAM. The 32 kB bootloader area permits on-chip firmware updates. Peripheral features: 23 general-purpose I/O lines. Two 8-bit timer/counters with prescaler and comparison modes. A single 16-bit timer/counter featuring prescaler, compare, and capture modes. Six PWM channels with multiple mode support. 6-channel, 10-bit ADC. Communication Interfaces: Supports programmable serial USART. SPI Serial Interface (Master/Slave). Two-wire Serial Interface (I²C). There is no native USB support. Power Management: Operates between 1.8V and 5.5V. There are three operational modes: active, idle, and power down. Watchdog timer with an on-chip oscillator. Brownout detection and software-programmable power-saving modes. Development and Debugging: Supports JTAG for on-chip debugging. Interruptions can occur both within and externally. Real-time counter with a separate oscillator. Oscillators and clocks: Internally calibrated RC oscillator provides a reliable clock. External clock sources can be linked to ensure exact operations.