Patent ID: 7369424

Claim:
A programmable memory cell, comprising: an organic memory cell, for storing a plurality of corresponding information bits, wherein the organic memory cell coupled to a common electrode; and a switching element, coupled to the organic memory cell other than the terminal coupled to the common electrode, the information bit of the organic memory cell is programmed or read out by controlling the switching element; wherein when the organic memory cell is programmed to store a logic high status for the information bit, the organic memory cell is charged to a logic high voltage level through the switching element; when the organic memory cell is programmed to store a logic low status for the information bit, the organic memory cell is discharged to a logic low voltage level through the switching element; and when the information bit stored in the organic memory cell is read out for use, the organic memory cell is charged to a reading voltage level within a reading range through the switching element; the logic high voltage level is a positive voltage level, the logic low voltage level is a negative voltage level, and the reading voltage level is between the logic high voltage level and the low high voltage level.