This work is licensed under the Creative Commons
Attribution-ShareAlike 4.0 International License. To view
a copy of this license, visit http://creativecommons.
org/licenses/by-sa/4.0/ or send a letter to Creative
Commons, PO Box 1866, Mountain View, CA 94042, USA.
Ground
Power
LED
Internal Pin
SWD Pin
Digital Pin
Analog Pin
Other Pin
Microcontroller’s Port
Default
Last update: 30/06/2021
STORE.ARDUINO.CC/NANO
VIN 7-12 V input to the board.
MAXIMUM current per +3.3V
pin is 50mA
MAXIMUM current per I/O
pin is 20mA
D13
+3V3
AREF
+5V
RESET
GND
VIN
PB5
PC0ADC[0]
PC1ADC[1]
PC2
ADC[2]
PC3
ADC[3]
PC4ADC[4]
PC5ADC[5]
ADC[6]
ADC[6]
ADC[7]
ADC[7]
PC6
D12
~D11
~D10
~D9
D8
D7
~D6
~D5
D4
~D3
D2
GND
RESET
D0/RX
D1/TX
PB4 CIPO
PB3 COPI
PB2
PB1
PB0
PD7
PD6
PD5
PD4
PD3
PD2
PC6
PD0
PD1
TX LED
RX LED
Power
FT23RL
LED_BUILTIN PB5
22-CBUS1
23-CBUS0
D14A0
D15A1
D16A2
D17A3
D18A4
D19A5
A6
A7
NOTE: CIPO/COPI have previously
been referred to as MISO/MOSI
Analog
Communication
Timer
Interrupt
Sercom
This work is licensed under the Creative Commons
Attribution-ShareAlike 4.0 International License. To view
a copy of this license, visit http://creativecommons.
org/licenses/by-sa/4.0/ or send a letter to Creative
Commons, PO Box 1866, Mountain View, CA 94042, USA.
Ground
Power
LED
Internal Pin
SWD Pin
Digital Pin
Analog Pin
Other Pin
Microcontroller’s Port
Default
Last update: 30/06/2021
STORE.ARDUINO.CC/NANO
MAXIMUM current per +3.3V
pin is 50mA
MAXIMUM current per I/O
pin is 20mA
D13
+3V3
AREF
+5V
RESET
GND
VIN
PB5PCINT[5]SCK
PC0
PCINT[8] ADC[0]
PC1PCINT[9] ADC[1]
PC2PCINT[10]ADC[2]
PC3PCINT[11]ADC[3]
PC4
PCINT[12]SDA ADC[4]
PC5PCINT[13]SCL ADC[5]
ADC[0]
ADC[1]
ADC[2]
ADC[3]
ADC[4]
ADC[5]
ADC[6]
ADC[6]
ADC[7]
ADC[7]
PC6PCINT[14]RESET
CIPO PCINT[4]
PB4 CIPO
OC2ACOPI PCINT[3]
PB3 COPI
OC1BSS PCINT[2]
PB2
OC1A PCINT[1]
PB1
CLKO/ICP1 PCINT[0]
PB0
AIN[1]PCINT[23]
PD7
AIN[0]OC0A PCINT[22]
PD6
OC0B/T1 PCINT[21]
PD5
T0/XCK PCINT[20]
PD4
OC2B PCINT[19]/INT[1]
PD3
PCINT[18]/INT[0]
PD2
RESET PCINT[14]
PC6
RXD PCINT[16]
PD0
TXD PCINT[17]
SCK PCINT[5]
PD1
TX LED
RX LED
Power
FT23RL
LED_BUILTIN PB5
22-CBUS1
23-CBUS0
D14A0
D15A1
D16A2
D17A3
D18A4
D19A5
D12
~D11
~D10
~D9
D8
D7
~D6
~D5
D4
~D3
D2
GND
RESET
D0/RX
D1/TX
A6
A7
VIN 7-12 V input to the board.
NOTE: CIPO/COPI have previously
been referred to as MISO/MOSI
Analog
Communication
Timer
Interrupt
Sercom
This work is licensed under the Creative Commons
Attribution-ShareAlike 4.0 International License. To view
a copy of this license, visit http://creativecommons.
org/licenses/by-sa/4.0/ or send a letter to Creative
Commons, PO Box 1866, Mountain View, CA 94042, USA.
Ground
Power
LED
Internal Pin
SWD Pin
Digital Pin
Analog Pin
Other Pin
Microcontroller’s Port
Default
Last update: 30/06/2021
STORE.ARDUINO.CC/NANO
MAXIMUM current per +3.3V
pin is 50mA
MAXIMUM current per I/O
pin is 20mA
BOTTOM
ATMEGA328P
PCINT[16]1-TXD
PD0RXD
2-DTR
RESET
PCINT[17]5-RXD
PD1
TXD
22-CBUS1
TX LED
23-CBUS0
RX LED
16-USBDM
15-USBDP
531
642
PB4
PB5
PB3
1CIPO
2+5V
3SCK
4COPI
5RESET
6GND
CIPO
SCK
COPIOC2A
PCINT[4]
PCINT[5]
PCINT[3]
FT23RL
ICSP
USB D-
+5V
USB D+
USB ID
GND
VIN 7-12 V input to the board.
NOTE: CIPO/COPI have previously
been referred to as MISO/MOSI
/
