ATmega328P-PU PDIP-28 Microcontroller

The ATmega328P is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmegaPA/328P achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Specifications: 
• 8-bit AVR microcontroller
• 32KB ISP flash memory with read-while-write capabilities
• 1024B EEPROM
• 2KB SRAM
• 6 analog inputs (10-bit resolution) 
• 14 digital input/output (I/O) pins of which 6 can be used as pulse-width modulated (PWM) outputs
• 40mA DC current per I/O pin
• 20 MHz max operating frequency
• 1.8-5.5 volt operating range
• UART
• Byte-oriented 2-wire serial interface (I²C) 
• SPI serial port
• -40 to 85 (deg C) operating temp. range
• Dimensions (excluding pins): 35.5mm x 8.6mm x3.33mm