http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010166299-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d231147f38595bbe3114b758cba4a298 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11C2207-2254 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11C7-222 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11C7-1051 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11C7-1057 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11C8-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11C7-1066 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11C7-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03K19-0175 |
| filingDate | 2009-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e00a1e1c0d6811ce631c1672b72f82ae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ccce76d75d4679790a1978bdb79cd02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_494af2025c95c20c74818ac8dac52e70 |
| publicationDate | 2010-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2010166299-A |
| titleOfInvention | Calibration circuit and calibration method |
| abstract | A calibration circuit capable of performing a calibration operation independent of an external clock is provided. Replica buffers 110, 120, and 130 having substantially the same circuit configuration as at least a part of an output buffer, an oscillator circuit 151 that generates an internal clock ZQCLK in response to issuance of a calibration command ZQC, an internal And a control circuit 140 that controls the impedance of the replica buffers 110, 120, and 130 in synchronization with the clock ZQCLK. According to the present invention, since the calibration operation not depending on the external clock is performed, even when the frequency of the external clock changes depending on the operation mode or the like, a period allocated to one adjustment step or a series of The time required for the calibration operation can be made constant. [Selection] Figure 1 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9030229-B2 |
| priorityDate | 2009-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.