Sense amplifier with feedback-controlled bitline access
US6894541B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2003 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Oct 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sense amplifier includes a feedback controlled bit line access scheme that feeds a sense amplifier output signal back to control operation of its associated bit line access transistor. This feedback may be implemented using a pair of inverter circuits each coupling a respective output signal to the control gate of the associated access transistor. Alternatively, the feedback may be implement using a logic gate which logically combines the sense amplifier output signals together to generate an output signal for controlling operation of both access transistors. The logic gate is preferably a NAND gate. The sense amplifier further includes a cross-connected feedback inversion circuit which inverts a sense amplifier output signal from a first latch inverter for application to a conducting line of a second latch inverter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.