ATmega328U 8 Bit Microcontroller by Microchip

The high-performance Microchip 8-bit AVR RISC-based microcontroller combines 32KB ISP Flash memory with read-while-write capabilities, 1 KB EEPROM, 2 KB SRAM, 23 general-purpose I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, serial programmable USART, a byte-oriented Two-Wire serial interface, SPI serial port, 6-channel 10-bit A/D converter (8-channels in TQFP and QFN/MLF packages), programmable watchdog timer with internal oscillator, and five software selectable power saving modes. The device operates between 1.8-5.5 volts.

Features

• Its the part of ATMEGA328-U
• It has RTC with a separate oscillator
• It has a serial USART
• It has a Master/Slave SPI interface
• It has a 2-wire interface
• It has a watchdog timer
• It has an Analog comparator
• It has 23 IO lines
• It has a data retention of 20 years at 85C/ 100 years at 25C
• Advanced RISC Architecture High Endurance Non-volatile Memory Segments
• Peripheral Features Special Microcontroller Features
• Endurance Non-volatile Memory segments

Specification