The figure shows a program control and display application circuit composed of C187 and CL102 . When the power is turned on, since the voltage across the capacitor cannot rise immediately, it is in a low state, and the R terminal is high through the inverter. Level, system reset, CL102 photoelectric assembly display 0. As the power supply charges the capacitor, the potential rises, the R terminal returns to the low state, and the C187"0" terminal outputs the high level.
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