| 摘要 |
PURPOSE: A low power power-on-reset circuit is provided to supply a power-on-reset signal by being operated in low power. CONSTITUTION: A power-on-reset circuit(100) includes a first voltage detecting circuit and a second voltage detecting circuit(120). The power-on-reset circuit is connected to a target circuit(140) for operation. The power-on-reset circuit and the target circuit receive power from a supply power source(150). The power-on-reset circuit is formed to activate a power-on-reset signal(20). The power-on-reset circuit is formed to deactivate the power-on-reset signal while a power supply voltage generated through the supply power source arrives at a desired level.
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