What is the general power consumption for MCU in sleep mode?
MCU power consumption is minimum when enter Sleep Mode (not exceed 2uA). IC of engineering
type, take SN8P2501B for example, in the temperature of -40 ℃ ~ 85 ℃, its Sleep Mode
power consumption ranges from 10 to 21uA. There may be some slightly difference between
different MCU types, you can refer to electrical characteristics section in datasheet
for more information.