34.7 Pin Threshold and Hysteresis Figure 34-24. ATmega328PB I/O Pin Input Threshold Voltage vs. VCC (VIH, I/O Pin Read as ‘1’) Figure 34-25. ATmega328PB I/O Pin Input Threshold Voltage vs. VCC (VIL, I/O Pin Read as ‘0’) Figure 34-26. ATmega328PB I/O Pin Input Hysteresis vs. VCC Figure 34-27. ATmega328PB Reset Input Threshold Voltage vs. VCC (VIH, I/O Pin Read as ‘1’) Figure 34-28. ATmega328PB Reset Input Threshold Voltage vs. VCC (VIL, I/O Pin Read as ‘0’) Figure 34-29. ATmega328PB Reset Pin Input Hysteresis vs. VCC