image/svg+xml18 FEB 2013
BY ND
www.pighixxx.com
ver 2 rev 2 - 05.03.2013
Connected to the ATMegaand used for USB programand communicating with it
UNO
ARDUINO
THEDEFINITIVE
PINOUT DIAGRAM
POWERJACK
USBJACK
0
RXD
PCINT16
2PD0
1
TXD
PCINT17
RX
TX
3PD1
2
INT0
PCINT18
4PD2
3
INT1
PCINT19
PWM
OC2B
5PD3
6
AIN0
PCINT22
PWM
OC0A
12PD6
10
OC1B
PCINT2
PWM
SS
16PB2
11
OC2A
PCINT3
PWM
MOSI
17PB3
GND
AREF
21
AREF
12
PCINT4
MISO
18PB4
8
CLKO
PCINT0
ICP1
14PB0
7
AIN1
PCINT23
13PD7
5
T1
PCINT21
PWM
11PD5
9
OC1A
PCINT1
PWM
15PB1
4
T0
PCINT20
XCK
6PD4
13
PCINT5
SCK
19PB5
PCINT12
ADC4
SDA
27PC4
18A4
PCINT13
ADC5
SCL
28PC5
19A5
SCL
ADC5
PCINT13
28PC5
19A5
SDA
ADC4
PCINT12
27PC4
18A4
RESET
PCINT14
1PC6
ADC3
PCINT11
26PC3
17A3
ADC2
PCINT10
25PC2
16A2
ADC1
PCINT9
24PC1
15A1
ADC0
PCINT8
23PC0
14A0
VIN
GND
GND
5V
IOREF
3V3
RESET
PCINT14
1PC6
11
OC2A
PCINT3
PWM
MOSI
17PB3
12
PCINT4
MISO
18PB4
13
PCINT5
SCK
19PB5
GND
5V
MOSI2
MISO2
RESET2
SCK2
GND
5V
Not Connected
ATMEGA8U2/ATMEGA16U2 ICSP
RESET Button
Cut to disable the auto-reset
R3 OnlyR3 Only
Absolute max 200mA
for entire package
Absolute
max per pin 40mAreccomended 20mA
The input voltage to the Arduino board whenit is running from external power.
Not USB bus power.
GNDPowerControlPhysical PinPort PinPin FunctionDigital PinAnalog Related PinPWM PinSerial PinIDESource Total 150mA
12345678910111213142827262524232221201918171615
ATMEGA328
RESET
PC6
PCINT14
RXD
PD0
PCINT16
0
TXD
PD1
PCINT17
1
INT0
PD2
PCINT18
2
INT1
PD3
PCINT19
3
OC2B
PWM
XTAL1
PB6
PCINT6
OSC1
XTAL2
PB7
PCINT7
OSC2
XCK
PD4
PCINT20
4
T0
CLKO
PB0
PCINT0
8
ICP1
VCC
VCC
AREF
GND
GND
T1
PD5
PCINT21
5
PWM
OC0B
AIN0
PD6
PCINT22
6
PWM
OC0A
AIN1
PD7
PCINT23
7
OC1A
PB1
PCINT1
9
PWM
OC1B
PB2
PCINT2
10
PWM
SS
OC2A
PB3
PCINT3
11
PWM
MOSI
ADC4
PC4
PCINT12
A4
SDA
ADC5
PC5
PCINT13
A5
SCL
MISO
PB4
PCINT4
12
SCK
PB5
PCINT5
13
ADC0
PC0
PCINT8
A0
ADC1
PC1
PCINT9
A1
ADC2
PC2
PCINT10
A2
ADC3
PC3
PCINT11
A3
2.1mmVINGND
7-12V Dependingon current drawn
USB JACKTYPE B
This provides a logic reference voltagefor shields that use it. It is connected to the 5V bus.