发明名称 |
Memory using conventional cells to perform a ram or an associative memory function |
摘要 |
Memory comprising a matrix of conventional Harper pnp cells and peripheral circuits which allows it to be used either as a random access memory or as an associative 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 work lines to a quiescent voltage once the search operation is completed. Circuits 7 and 11 are inhibited in read/write mode.
|
申请公布号 |
US4740917(A) |
申请公布日期 |
1988.04.26 |
申请号 |
US19850797068 |
申请日期 |
1985.11.12 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
DENIS, BERNARD;OMET, DOMINIQUE |
分类号 |
G11C15/04;(IPC1-7):G11C7/00;G11C15/00 |
主分类号 |
G11C15/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|