SEMICONDUCTOR DEVICE, WIRELESS SENSOR, AND ELECTRONIC DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor device that is capable of displaying information even when a radio signal is not supplied.SOLUTION: The semiconductor device includes an antenna, a battery, a sensor, a nonvolatile memory, a first circuit, and a second circuit. Power supplied from the antenna is converted into first power via the first circuit. The battery stores the first power and supplies second power. The sensor performs sensing with the use of the second power. The nonvolatile memory stores analog data acquired by the sensor with the use of the second power. The second circuit converts the analog data into digital data with the use of the first power. The nonvolatile memory preferably includes an oxide semiconductor transistor.SELECTED DRAWING: Figure 1