Semiconductor integrated circuit outputting detection signal based on detection result of a detecting device and electronic device including the same
US7570084B2 · kind B2 · utility
2Cited by
28References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 1, 2007 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Aug 15, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/187
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A semiconductor integrated circuit includes a first external terminal for receiving a voltage converted by a resistance portion from a current varying in response to an extrinsic factor, a second external terminal for externally outputting the voltage received at the first external terminal as a detection signal, a control circuit outputting a control signal for changing a resistance value of the resistance portion based on the voltage received at the first external terminal, and a third external terminal for outputting the control signal to the resistance portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.