re: thehaseebh | Microcontroller › 8051 › Micro-controller Voltage problem › re: thehaseebh December 7, 2010 at 5:32 am #5191 dagakshayParticipant it depends on controller to controller… like at89s51 operating range 4.0v-5.5v so it is obvious it cant hold 17 to 18 Volts…..
