Mixed voltage, multi-rail, high drive, low noise, adjustable slew rate input/output buffer
US5862390A · kind A · utility
53Cited by
11References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 1996 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Mar 15, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/00361
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A universal input/output buffer uses all digital-type components, can be included on an integrated circuit chip and operates in a mixed voltage, multi-rail, power supply environment. The input/output buffer includes a multi-stage driver section and a sequencing section. Several types of sequencing techniques are used to control a plurality of driver stages and provide a combination of multiple firing schemes. In addition, other control techniques are employed such as full and partial feedback, sequential turn on/turn off of driver stages, and controlled introduction of a small amount of "crow bar" current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.