| 摘要 |
An anti-fuse circuit uses first to fifth power supplies which have first to fifth power supply voltages, respectively, in the order of highest to lowest during writing. The anti-fuse circuit includes: a first level shift circuit which is connected to the second to fourth power supplies and which converts a first logic signal that changes between the third and fourth power supply voltages into a second logic signal that changes between the second and fourth power supply voltages; a second level shift circuit which is connected to the first, second, and fourth power supplies and which converts the second logic signal into a third logic signal that changes between the first and fourth power supply voltages; a transistor having a source connected to the first power supply and a gate connected to the third logic signal; and an anti-fuse element having one end connected to the drain of the transistor and the other end connected to the fifth power supply.
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