34.5 Pin Pull-Up Figure 34-14. ATmega328PB: I/O Pin Pull-Up Resistor Current vs. Input Voltage (VCC = 1.8V) Figure 34-15. ATmega328PB: I/O Pin Pull-Up Resistor Current vs. Input Voltage (VCC = 2.7V) Figure 34-16. ATmega328PB: I/O Pin Pull-Up Resistor Current vs. Input Voltage (VCC = 5V) Figure 34-17. ATmega328PB: Reset Pull-Up Resistor Current vs. Reset Pin Voltage (VCC = 1.8V) Figure 34-18. ATmega328PB: Reset Pull-Up Resistor Current vs. Reset Pin Voltage (VCC = 2.7V) Figure 34-19. ATmega328PB: Reset Pull-Up Resistor Current vs. Reset Pin Voltage (VCC = 5V)