Power on Reset IP is designed to generate global reset signal depending on 3.3V Power Supply. The output nReset is low while vcc33 is detected lower than Vth_vcc33_up, the upper threshold of comparator. Once vcc33 rise higher than Vth_vcc33_up the signal nReset goes high until vcc33 falls lower than Vth_33_dn, the lower threshold of comparator. At initial power on nReset is guaranteed to be held low for dT_nReset_up.
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