Robust adaptive method and circuit for controlling a timing window for enabling operation of sense amplifier
US11195576B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2019 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Nov 27, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/417
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sense amplifier enable signal and a tracking signal are generated in response to an indication that a sufficient voltage difference has developed across bit lines of a memory. The sense amplifier enable signal has a pulse width between a leading edge and a trailing edge. The sense amplifier enable signal is propagated along a first U-turn signal line that extends parallel to rows of the memory array and is coupled to sense amplifiers arranged in a row to generate a sense amplifier enable return signal. The tracking signal is propagated along a second U-turn signal line extending parallel to columns of the memory array to generate a tracking return signal. The sense amplifier enable return signal and the tracking return signal are logically combined to generate a reset signal. Timing of the trailing edge of the pulse width is controlled by the reset signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.