| 摘要 |
In order to make memories more secure against interference occurring in operation, error correction devices are normally associated with them. If the memory contents of the storage location (1) are accessed by evaluating the location current, the problem arises that the location current is both value-continuous and time-continuous. If leakage currents occur in the storage location (1) that lead to an increased storage location current, then the current sensor amplifier (2) can fall below these values only with a constantly increasing access time between the values 0 and 1. When leakage currents occur the current sensor amplifier (2) for evaluating the location current may therefore switch over at arbitrary times. In order to be able to effect correctly a series-connected error correction in an error correction device (5), in each case registers (3) are interconnected between the current sensor amplifiers (2) and the error correction device (5) that intermediately store at a specific time (t4) the output signal of the current sensor amplifier (2). Accordingly a switching over of the input signal of the error correction device (5), which in certain circumstances could lead to an erroneous error correction, can be avoided during the error correction.
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