In data output circuit, the MOS transistor works at a high speed when the supply voltage increases in low temperature. Then the variety speed of the output signal is so high that many disturbing signals are aroused.

• 数据输出电路在电源电压升高而温度很低的情况下；MOS管工作速度快；会使输出信号变化率过大而产生许多干扰信号.