微处理器复位监控电路的正确选择

The correct choice of microprocessor reset monitor circuit

对阻容复位电路和监控器复位电路产生的复位脉冲的特性进行了比较与分析 ,结果发现 ,在电源出现瞬时跌落的情况下 ,阻容复位电路可能无法产生所需的复位脉冲 。

This paper presents analyses and comparison of characteristics for reset pulse generated by RC reset circuit and monitor reset circuit.It is found that when power falls down for a monent,RC reset circuit couldn't create a reset pulse.In addition,the paper has discussed how to select a reset threshold valtage correctly.