The Arduino Pro Mini is a microcontroller board based on the ATmega328.
It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers. A six pin header can be connected to an FTDI cable or Sparkfun breakout board to provide USB power and communication to the board.
|Board Power Supply||3.35 -12 V (3.3V model) or 5 – 12 V (5V model)|
|Circuit Operating Voltage||3.3V or 5V (depending on model)|
|Digital I/O Pins||14|
|Analog Input Pins||6|
|DC Current per I/O Pin||40 mA|
|Flash Memory||32KB of which 2 KB used by bootloader *|
|SRAM||2 KB *|
|EEPROM||1 KB *|
|Clock Speed||8 MHz (3.3V versions) or 16 MHz (5V versions)|
(*) Older boards were equipped with ATmega 168 with this specs:
– Flash memory: 16 KB
– SRAM: 1 KB
– EEPROM: 512 bytes