Pin Pull-Up

Figure 1. ATmega328PB: I/O Pin Pull-Up Resistor Current vs. Input Voltage (V_CC = 1.8V)

Figure 2. ATmega328PB: I/O Pin Pull-Up Resistor Current vs. Input Voltage (V_CC = 2.7V)

Figure 3. ATmega328PB: I/O Pin Pull-Up Resistor Current vs. Input Voltage (V_CC = 5V)

Figure 4. ATmega328PB: Reset Pull-Up Resistor Current vs. Reset Pin Voltage
(V_CC = 1.8V)

Figure 5. ATmega328PB: Reset Pull-Up Resistor Current vs. Reset Pin Voltage
(V_CC = 2.7V)

Figure 6. ATmega328PB: Reset Pull-Up Resistor Current vs. Reset Pin Voltage (V_CC = 5V)