Semiconductor device
US10222847B2 · kind B2 · utility
1Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2016 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Sep 15, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3237
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is provided a semiconductor device that can follow a fast voltage change such as a large voltage drop occurring at the time of rapid load fluctuation. The semiconductor device includes a voltage sensor which monitors a power supply voltage at a sampling speed higher than the assumed frequency of power supply voltage fluctuation and outputs a voltage code value, a voltage drop determination circuit which determines, from the voltage code value, that a voltage drop causing a malfunction of a system occurs, and outputs a clock stop signal, and a clock control circuit which controls clock stop, restart, and frequency change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.