Integrated circuit provided with means for calibrating an electronic module and method for calibrating an electronic module of an integrated circuit
US6691055B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 20, 2000 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Dec 26, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/31702
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The integrated circuit is provided with integrated calibrating circuit in order to calibrate at least one electronic module supplying at its output a reference voltage or a time base signal or a reference frequency signal. Said calibrating means are defined by a microcontroller which receives via an input pad of the integrated circuit an external reference signal which is compared to an internal reference signal of the reference module in order to be able to calibrate in an autonomous manner the integrated reference electronic module as a function of the external reference signal. The final calibrating parameters are permanently stored with an associated signature in a memory so that each time that voltage is subsequently applied to the circuit the final calibrating parameters are automatically applied to the corresponding reference module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.