Semiconductor integrated circuit device and battery pack

摘要

A semiconductor integrated circuit device for calculating a remaining battery capacity of a battery from which the semiconductor integrated circuit device receives power supply, and reporting the calculated remaining battery capacity to a battery-using appliance which also receives power supply from the battery includes a clock generating unit configured to generate a first clock signal and a second clock signal having a higher frequency than a frequency of the first clock signal; a selecting unit configured to select one of the first clock signal and the second clock signal and output the selected clock signal; a calculating unit configure to operate according to the selected clock signal to calculate the remaining battery capacity; and a communicating unit configured to operate according to the selected clock to report the calculated remaining battery capacity to the battery-using appliance.