Aporc02_3v3 is a Power-on-Reset circuit with hysteresis. Reset signals are generated on both the rising and falling edge of the supply voltage. During the power-on, POR output follows the supply voltage as long as it is below the high threshold. When the high threshold voltage is reached, the POR signal turns low. A delay of a few microseconds is provided to allow the supply voltage to stabilize. During the power-off, the POR output turns high at reaching the low threshold voltage without any delay. An inverted PORB signal is also provided.