Oscillation circuit, microcomputer and electronic device

An oscillation circuit, comprising:

• a charge-discharge type oscillation unit that performs an oscillation operation at an oscillating frequency that is associated with a control current value;
• and
• a control current generation unit that generates the control current,
• wherein the control current generation unit includes:
• a reference voltage generation circuit that generates a reference voltage that has a first temperature characteristic;
• a temperature characteristic slope correction circuit that corrects a slope of a temperature characteristic of the reference voltage in accordance with first correction information and generates an output voltage that has a second temperature characteristic;
• and
• a voltage-current conversion circuit that converts the output voltage of the temperature characteristic slope correction circuit into the control current, and that corrects the control current value in accordance with second correction information, and
• temperature dependence of the oscillating frequency of the charge-discharge type oscillation unit is suppressed by a temperature characteristic of the control current.