SEMICONDUCTOR DEVICE AND CURRENT CONTROL METHOD OF SEMICONDUCTOR DEVICE

摘要

According to one embodiment, a semiconductor device comprises an integrated circuit having a plurality of current modes different in operation current; a voltage sensor that detects a voltage in use by the integrated circuit; a BIST control circuit that generates BIST patterns different in the operation current and creates a flag indicating the success or failure of a BIST corresponding to the operation current based on the result of detecting the voltage while the integrated circuit is made to operate based on the BIST pattern; and a storing unit that stores the flag. The integrated circuit sets the current mode based on the flag.

主权项

1. A semiconductor device comprising:
an integrated circuit having a plurality of current modes different in operation current; a voltage sensor that detects a voltage in use by the integrated circuit; a built-in self test (BIST) control circuit that generates BIST patterns different in the operation current and creates a flag indicating the success or failure of a BIST corresponding to the operation current based on the result of detecting the voltage while the integrated circuit operates based on the BIST pattern; and a storing circuit that stores the flag, wherein the integrated circuit sets the current mode based on the flag.