| 摘要 |
<p>A semiconductor device comprises a fuse circuit having first and second fuses (F1,F2) for storing an information by blown and unblown states of the fuses (F1,F2), an information output circuit for providing an output signal having a first logic level when at least one of the fuses (F1,F2) in blown and an output signal having a second logic level when both the fuses (F1,F2) are unblown, and a detecting circuit for detecting which one of the fuses (F1,F2) is unblown. This detecting circuit has a first transistor (Q1) connected to the first fuse (F1) in parallel and turned ON in response to a first check signal (X), and a second transistor (Q2) connected to the second fuse (F2) in parallel and turned ON in response to a second check signal (Y).</p> |
