| 摘要 |
<p>PURPOSE:To easily execute the setting/change of the option part by providing a latch corresponding to each of opening/closing elements and a rewritable and nonvolatile memory cells, and executing the setting/change of the circuit by opening and closing the opening/closing elements by the latch. CONSTITUTION:An EPROM cell 10 and a latch 30 are provided for the setting/ change of an option circuit 40. On the option circuit 40, plural pieces of opening/ closing elements are provided in order to execute the setting/change of its circuit, and by opening and closing these opening/closing elements, connection/ non-connection between wirings or a substrate diffusion layer and the wiring are executed and the setting/change of the option circuit are realized. As for the latch 30 and the EPROM 10, plural pieces are provided so as to correspond to one-to-one to the opening/closing elements. In such a way, the setting/change of the option circuit can be executed easily and quickly.</p> |
