Arduino Nano V3.0 (CH340)

Arduino Nano 3.0 (ATmega328): since the free version of Eagle does not handle more than 2 layers, and this version of the Nano is 4 layers, it is published here unrouted, so users can open and use it in the free version of Eagle.

Specifications:
Microcontroller:  Atmel ATmega168 or ATmega328

Operating Voltage  (logic level):  5 V
Input Voltage (recommended):  7-12 V
Input Voltage (limits):  6-20 V
Digital I/O Pins:  14 (of which 6 provide PWM output)
Analog Input Pins:  8
DC Current per I/O Pin:  40 mA
Flash Memory:  16 KB (ATmega168) or 32 KB (ATmega328) of which 2 KB used by bootloader
SRAM:  1 KB (ATmega168) or 2 KB (ATmega328)
EEPROM:  512 bytes (ATmega168) or 1 KB (ATmega328)
Clock Speed:  16 MHz
Dimensions:  0.73" x 1.70"