Fuse circuit and electronic circuit

Abstract

A fuse circuit and an electronic circuit for outputting a signal in accordance with the breakage of fuses even when the resistances of the broken fuses differ, reducing leak currents, and lowering power consumption. The fuse circuit includes a plurality of fuse lines, each including a fuse connected to a low-potential ground line and to a high-potential line via a MOS transistor and a constant current source. The fuse lines also each includes an inverter having an input terminal connected between the MOS transistor and constant current source. A reference circuit is connected in parallel to the fuse lines and includes a current source, a transistor, and a resistor connected in series. The transistor of the reference circuit has an input terminal connected to its control terminal and to the control terminal of each MOS transistor.

Dependencies are inferred from the claim text.