Configuration of default voltage level for dual-voltage input/output pad cell via voltage rail ramp up timing
US10599197B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2016 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Apr 12, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An integrated circuit (IC) package of an electronic device includes a first input coupled to a first voltage rail and a second input coupled to a second voltage rail. The IC package further includes a set of one or more input/output (IO) pad cells and a power sequence detector coupled to the first and second voltage rails. The power sequence detector monitors the first and second voltage rails and configures the set of one or more IO pad cells to operate at one of a non-zero first voltage level or a non-zero second voltage level depending on which of the first voltage rail and the second voltage rail ramps up to a corresponding specified voltage level first.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.