Full Member level 4
Hi. Recently I saw a control circuit of Automatic voltage stabiliser which uses Nuvoton W79E251 MCU. On scrutiny of datasheet, it is noticed that the said MCU has no ADC module. No external ADC chip has been used in the circuit. Yet the 7-segment display shows the voltage perfectly. Sample of output voltage is coupled only to analogue comparator module of the MCU. Is it possible to derive data for display of voltage without ADC module?