Semiconductor device and metering apparatus

摘要

A semiconductor device. The semiconductor device includes: an oscillator; a semiconductor chip that includes an oscillation circuit connected to the oscillator, a timer circuit that generates a timing signal of a frequency according to a oscillation frequency of the oscillation circuit, and a frequency correction section that corrects a frequency of the timing signal based on temperature data; and a discrete device that includes at least one of a temperature sensing device that detects a peripheral temperature, that supplies the detected temperature as temperature data to the frequency correction section, and that is provided as a separate body to the semiconductor chip, or a capacitor that is electrically connected to both the oscillator and the oscillation circuit and that is provided as a separate body to the semiconductor chip, wherein the oscillator, the semiconductor chip and the discrete device are contained within a single package.

主权项

1. A semiconductor device comprising:
an oscillator; a semiconductor chip that includes an oscillation circuit connected to the oscillator, a timer circuit that generates a timing signal of a frequency according to an oscillation frequency of the oscillation circuit, a measurement counter that receives an output signal of the oscillation circuit and counts the output signal, a reference counter that receives a reference signal and counts the reference signal, and a frequency correction section that connects the measurement counter and the reference counter and that corrects a frequency of the timing signal based on temperature data and a comparison result that is obtained by comparing a count value of the measurement counter within a predetermined period and a count value of the reference counter within the predetermined period; and a discrete device that includes at least one of a temperature sensing device that detects a peripheral temperature, that supplies the detected temperature as temperature data to the frequency correction section, and that is provided as a separate body to the semiconductor chip, or a capacitor that is electrically connected to both the oscillator and the oscillation circuit and that is provided as a separate body to the semiconductor chip; wherein the oscillator, the semiconductor chip and the discrete device are contained within a single package.