초록 ▼

A memory system capable of being configured for optimum performance after fabrication using control parameters stored in non-volatile data storage units. The system includes an array of memory cells, separate from the data storage units, arranged in a multiplicity of rows and a multiplicity of colum

A memory system capable of being configured for optimum performance after fabrication using control parameters stored in non-volatile data storage units. The system includes an array of memory cells, separate from the data storage units, arranged in a multiplicity of rows and a multiplicity of columns, with each cell located in one of the rows being coupled to a common word line and with each cell located in one of the columns being coupled to a common bit line. Control circuitry for controlling memory operations such as programming the memory cells and reading the memory cells when the memory system is in a normal mode of operation. The non-volatile data storage units store control parameter data used by the control means for controlling the memory operations, with the control parameters being modifiable when the memory system is placed in an alternative mode of operation as opposed the normal mode of operation. Once the memory has been fabricated and characterized, the control parameters can be selected for optimum memory performance and loaded into the data storage units.

대표청구항 ▼

[ It is claimed:] [1.] A memory system comprising:an array of memory cells arranged in a multiplicity of rows and a multiplicity of columns, with each cell located in one of the rows and one of the columns;a memory controller, operably coupled to the array, said memory controller configured to contr

[ It is claimed:] [1.] A memory system comprising:an array of memory cells arranged in a multiplicity of rows and a multiplicity of columns, with each cell located in one of the rows and one of the columns;a memory controller, operably coupled to the array, said memory controller configured to control memory operations, with the memory operations comprising memory programming operations wherein the memory cells are programmed and memory reading operation wherein the memory cells are read;a plurality of non-volatile data storage units, with the data storage units storing control parameter data used by the memory controller to control the memory operations; andswitching mode circuitry configured to switch the memory system between a normal operating mode wherein the cells of the array may be programmed and read and an alternative operating mode wherein the control parameter data in the data storage units can be either modified or accessed.