Semiconductor memory device capable of compression and decompression

摘要

A semiconductor memory device capable of compression and decompression is disclosed. With the semiconductor memory device having a built-in compression function, once external digital data need to be written to the semiconductor memory device, the semiconductor memory device can compress the external digital data and write the compressed external digital data to a semiconductor memory cell array, thereby enhancing data storage capacity. Furthermore, with the semiconductor memory device having a built-in decompression function, once electronic devices need to read data of the semiconductor memory device, the semiconductor memory device can decompress the data and output the decompressed data to the electronic devices.