| 摘要 |
<p>PURPOSE:To provide the reset circuit preventing the malfunctions of internal circuits such as CPU by resetting fixed power supply lines during the only proper reset time when a power switch is turned on at the disconnection of the fixed power supply lines. CONSTITUTION:When a disconnection detection circuit 9 detects the disconnection of a fixed power supply line 5, a reset signal generation circuit 11 switches a reset signal at the non-detection of disconnection to the one at the detection of disconnection. A reset signal longer than the inconstant time when starting the operation of a clock signal generation circuit 7 is sent to a CPU 6 and a backup circuit 12.</p> |
