| 摘要 |
In such a circuit in integrated construction, comprising a computing circuit and a read-only memory for storing a computing program, a circuit link is provided which, on the one hand, is electrically conductively connected via its ends to contact areas (21, 22, 23, 31, 32, 33, 41, 42) accessible from the outside of the case (1, 1') and, on the other hand, is electrically conductively connected internally to at least one data input terminal of the computing circuit, the circuit link (34, 35, 43) being constructed in such a manner that it can be permanently changed in its conductivity characteristics via a current exceeding the value of the current existing in operation as computing circuit and/or deviating in its direction. <IMAGE>
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