Common centroid differential sensing scheme
US5600603A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 22, 1995 |
| Grant date | Feb 4, 1997 |
| Priority date | — |
| Expiry date | Aug 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A common centroid differential sensing apparatus for sensing the contents of registers in a register array. This differential sensing apparatus includes a first pair of differential bit lines, which traverse across the register array in a predetermined direction (e.g., traverse the length or the width of the array) along a first traversing path or a second traversing path. This differential sensing apparatus also includes a second pair of differential bit lines, which traverse across the register array in the predetermined direction along a third traversing path and a fourth traversing path. Furthermore, the bit lines of one of the pairs of differential bit lines swap every ##EQU1## from the top and the bottom of the register array and swap every ##EQU2## afterwards, while the bit line pairs of the other of the pairs of the differential bit lines swap at ##EQU3## from the top and the bottom of the register array and every ##EQU4## afterwards, where N is an integer greater than 0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.