IC Reference · Pinout Viewer
Datasheet Quick-Ref
ATmega328P
8-Bit AVR Microcontroller (Arduino Uno)
Datasheet (PDF)
ROTATE
ATmega328PDIP-281PC6 (~RESET)2PD0 (RXD)3PD1 (TXD)4PD2 (INT0)5PD3 (INT1/OC2B)6PD4 (T0/XCK)7VCC8GND9PB6 (XTAL1/TOSC1)10PB7 (XTAL2/TOSC2)11PD5 (T1/OC0B)12PD6 (AIN0/OC0A)13PD7 (AIN1)14PB0 (ICP1/CLKO)28PC5 (ADC5/SCL)27PC4 (ADC4/SDA)26PC3 (ADC3)25PC2 (ADC2)24PC1 (ADC1)23PC0 (ADC0)22GND21AREF20AVCC19PB5 (SCK)18PB4 (MISO)17PB3 (MOSI/OC2A)16PB2 (OC1B/~SS)15PB1 (OC1A)
vcc
gnd
in
out
io
#LabelType
1PC6 (~RESET)io
2PD0 (RXD)io
3PD1 (TXD)io
4PD2 (INT0)io
5PD3 (INT1/OC2B)io
6PD4 (T0/XCK)io
7VCCvcc
8GNDgnd
9PB6 (XTAL1/TOSC1)io
10PB7 (XTAL2/TOSC2)io
11PD5 (T1/OC0B)io
12PD6 (AIN0/OC0A)io
13PD7 (AIN1)io
14PB0 (ICP1/CLKO)io
15PB1 (OC1A)io
16PB2 (OC1B/~SS)io
17PB3 (MOSI/OC2A)io
18PB4 (MISO)io
19PB5 (SCK)io
20AVCCvcc
21AREFin
22GNDgnd
23PC0 (ADC0)io
24PC1 (ADC1)io
25PC2 (ADC2)io
26PC3 (ADC3)io
27PC4 (ADC4/SDA)io
28PC5 (ADC5/SCL)io