Datasheet

Port Pin Alternate Functions

PCINT7 (Pin Change Interrupt 7)

PB6

XTAL1 (Chip Clock Oscillator pin 1 or External clock input)

TOSC1 (Timer Oscillator pin 1)

PCINT6 (Pin Change Interrupt 6)

PB5

SCK0 (SPI0 Bus Master clock Input)

XCK0 (USART0 External Clock Input/Output)

PCINT5 (Pin Change Interrupt 5)

PB4

MISO0 (SPI0 Bus Master Input/Slave Output)

RXD1 (USART1 Receive Pin)

PCINT4 (Pin Change Interrupt 4)

PB3

MOSI0 (SPI Bus Master Output/Slave Input)

TXD1 (USART1 Transmit Pin)

OC2A (Timer/Counter2 Output Compare Match A Output)

PCINT3 (Pin Change Interrupt 3)

PB2

SS0 (SPI0 Bus Master Slave select)

OC1B (Timer/Counter1 Output Compare Match B Output)

PCINT2 (Pin Change Interrupt 2)

PB1

OC1A (Timer/Counter1 Output Compare Match A Output)

PCINT1 (Pin Change Interrupt 1)

PB0

ICP1 (Timer/Counter1 Input Capture Input)

CLKO (Divided System Clock Output)

PCINT0 (Pin Change Interrupt 0)

The alternate pin configuration is as follows:

• XTAL2/TOSC2/PCINT7 – Port B, Bit 7

ATmega328PB

I/O-Ports

Datasheet Complete

DS40001906C-page 106