Memory using conventional cells to perform a ram or an associative memory function.

摘要

Memory comprising a matrix of conventional Harperpnp cells and peripheral circuits which allows it to be used either as a random access memory or as an associate memory. In addition to the read/write circuits which are inhibited in search mode, it comprises search mode control circuits (7-1 to 7-m) to provide the memory cells with a search argument (DI-1 to DI-m) and search circuits (11-1 to 11-n) connected to the word lines for detecting the match or mismatch conditions. A search restore circuit (15) common to all word lines WL is used to restore the word lines to a quiescent voltage once the search operation is completed. Circuits (7 and 11) are inhibited in read/write mode.