Arduino Micro - Atmega32U4

Specification:

• Microcontroller: ATmega32U4
• Operating Voltage: 5V
• Input Voltage (recommended): 7-12V
• Input Voltage (limit): 6-20V
• Digital I/O Pins: 20
• PWM Channels: 7
• Analog Input Channels: 12
• DC Current per I/O Pin: 20 mA
• DC Current for 3.3V Pin: 50mA
• Flash Memory: 32 KB (ATmega32U4) of which 4 KB used by bootloader
• SRAM: 2.5 KB (ATmega32U4)
• EEPROM: 1 KB (ATmega32U4)
• Clock Speed: 16 MHz
• LED_BUILTIN: 13
• Length: 48 mm
• Width: 18 mm
• Weight: 13 g

Pinout Diagram Here