| 摘要 |
An integrated circuit device (for example, a logic device (such as, a microcontroller or microprocessor) or a portion of a memory device (such as, a discrete memory)), including (a) a memory cell array having a plurality of memory cells arranged in (i) a plurality of normal rows of memory cells which are associated with and selectable via normal row addresses and (ii) a redundant row of memory cells which is associated with and selectable via a redundant row address, (b) address decoder circuitry to generate decoded row address data in response to an applied row address, (c) a memory to store decoded redundant row address data, (d) normal word line drivers, (e) redundant word line drivers, and (f) redundancy address evaluation circuitry to (i) store decoded redundant row address data which corresponds to the redundant row address, and (ii) in operation, determine whether the decoded row address data corresponds to the decoded redundant row address data, and, in response thereto, to enable the redundant word line drivers. In another aspect, the present inventions are directed to such row redundancy circuitry. |
