Method and apparatus for driving an integrated-circuit output pad
US5039874A · kind A · utility
33Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 1990 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | Mar 15, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018585
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A binarily programmable IC output pad driver includes a pair of FET drivers, one of which is always drivingly connected to the chip output pad. A second driver is selectively connected to the pad for driving the same in concert with the first driver in order to increase signal transition speed on the output pad. With both drivers driving, noise on the output pad increases and, if the particular application is effected by the increased noise level, signals applied to input pads on the chip disconnect the second driver to reduce pad noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.