Electronic apparatus detecting power supply voltage using different levels

An electronic apparatus, comprising:na first voltage detection circuit suitable for detecting when a voltage increases to become higher than a first level after the voltage starts to be supplied to a peripheral circuit and detecting when the voltage decreases to become lower than a second level, which is lower than the first level, after a supply of the voltage to the peripheral circuit starts to be interrupted; anda second voltage detection circuit suitable for detecting when the voltage decreases to become lower than a reference level while the peripheral circuit operates,wherein the second level is lower than the reference level.

An electronic apparatus, comprising:na plurality of memory blocks each including memory cells;an operation circuit suitable for outputting operation voltages to global lines, connecting local lines of a selected memory block, among the memory blocks, to the global lines, and reading data stored in memory cells of the selected memory block through bit lines; anda voltage detection circuit suitable for detecting when a power supply voltage increases to become higher than a first level after the power supply voltage starts to be supplied to the operation circuit, detecting when the power supply voltage decreases to become lower than a reference level while the operation circuit operates, and detecting when the power supply voltage decreases to become lower than a second level, which is lower than the first level, after the power supply voltage to the operation circuit starts to be interrupted,wherein the second level is lower than the reference level.

An electronic apparatus, comprising:na power supply unit suitable for supplying an internal node with a power supply voltage;an output unit suitable for outputting a voltage detection signal based on a voltage of the internal node; anda voltage control unit suitable for controlling the voltage of the internal node in response to the voltage detection signal of the output unit,wherein the output unit activates the voltage detection signal and the voltage control unit controls the voltage of the internal node when the power supply voltage increases to become higher than a first level after the power supply unit starts to supply the power supply voltage, andwherein the output unit deactivates the voltage detection signal when the power supply voltage decreases to become lower than a second level, which is lower than the first level, and the voltage control unit controls the voltage of the internal node to set the second level to be lower than the first level.