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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
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触发器、寄存器、计数器、单稳态多谐振荡器等时序电路的输出状态是在电源接通后确定的吗？
触发器、寄存器、计数器和单单触发多谐振荡器上电后的输出状态不确定。（其可能高，也可能低。）
通常，通过临时重置CLEAR引脚或其它引脚，初步设置上电后的逻辑状态。这称为上电复位。由电阻和晶体管组成的上电复位电路或专为复位信号设计的IC执行上电复位。
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