http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H03203897-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5547f741b25666fc4ae5195cf71a979b |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11C16-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11C17-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11C17-00 |
| filingDate | 1989-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59e78c0400ebd133ae0da871a0649429 |
| publicationDate | 1991-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H03203897-A |
| titleOfInvention | Semiconductor memory |
| abstract | PURPOSE: To allow ordinary reading out and writing operations regardless of the level of an external terminal for writing control by providing a reading- out output circuit to be exclusively used separately from an output circuit for executing ordinary reading out at the time of reading out the non-volatile memory information of a programmable circuit inducing a fuse. n CONSTITUTION: The output SW of a selecting switch signal generating circuit 3 rises to a high level and the MEMO of the non-volatile memory circuit 4 is transmitted to the output circuit 2 when a power source is turned on while the external terminal for writing control is at a high level. The same data as the data of a MEMO appears at the external input terminal IN. The SW is made to a low level, the output of a NAND circuit 5 to a high level, and the output of a NOR circuit 6 to a low level upon starting of the first writing operation after the external terminal for writing control falls thereafter to the level. A P channel type MOS transistor QP 1 and an N type MOS transistor QN 1 , therefore, turn off. The output circuit 2 is thereafter held always in a disable state. The ordinary reading out or writing operation is executed in this way. n COPYRIGHT: (C)1991,JPO&Japio |
| priorityDate | 1989-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID413832638 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID17318 |
Total number of triples: 14.