Apparatus and method for a semiconductor memory configuration-dependent output buffer supply circuit
US5502671A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1994 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Aug 31, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/1051
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a dynamic random access memory in which the number of data buffers is selectable, a buffer supply can be configured by a control signal to provide pump charge capacitance which is appropriate for providing the power required for energizing the selected number of buffers. In response to an external control signal, a second capacitor (or capacitor bank) can be precharged and then applied to the output terminal of buffer supply simultaneously with the precharging and application of the charge on the first capacitor. The dimension of the first capacitor is suitable for a buffer supply for the first buffer configuration and the second capacitor is suitable for a buffer supply for additional buffer amplifiers of the second configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.