Datasheet

17.3.2 Alternate Functions of Port C
The Port C pins with alternate functions are shown in the table below:
Table 17-6. Port C Pins Alternate Functions
Port Pin Alternate Function
PC6
RESET (Reset pin)
PCINT14 (Pin Change Interrupt 14)
PC5
ADC5 (ADC Input Channel 5)
SCL0 (two-wire Serial Bus Clock Line)
PCINT13 (Pin Change Interrupt 13)
PC4
ADC4 (ADC Input Channel 4)
SDA0 (two-wire Serial Bus Data Input/Output Line)
PCINT12 (Pin Change Interrupt 12)
PC3
ADC3 (ADC Input Channel 3)
PCINT11 (Pin Change Interrupt 11)
PC2
ADC2 (ADC Input Channel 2)
PCINT10 (Pin Change Interrupt 10)
PC1
SCK1 (SPI1 Master Clock output)
ADC1 (ADC Input Channel 1)
PCINT9 (Pin Change Interrupt 9)
PC0
MISO1
ADC0 (ADC Input Channel 0)
PCINT8 (Pin Change Interrupt 8)
The alternate pin configuration is as follows:
• RESET/PCINT14 – Port C, Bit 6
– RESET, Reset pin: When the RSTDISBL Fuse is programmed, this pin functions as a normal
I/O pin, and the part will have to rely on Power-on Reset and Brown-out Reset as its reset
sources. When the RSTDISBL Fuse is unprogrammed, the reset circuitry is connected to the
pin, and the pin cannot be used as an I/O pin.
ATmega328PB
I/O-Ports
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001906C-page 110