Semiconductor memory device

摘要

A semiconductor memory device includes: a memory array; a data-maintaining component, maintaining data read from the memory array or maintaining data used for writing to the memory array; an external input/output terminal; an error correction component, coupling the data-maintaining component and performing error-detection or correcting the data input to the data-maintaining component or output data from the data-maintaining component; a compressing component, coupling between the external input/output terminal and the error correction component and compressing or extending data. The compressing component compresses data provided by the external input/output terminal, provides the compressed data to the error correction component, extends the data provided by the error correction component, and provides the extended data to the external input/output terminal.

主权项

1. A semiconductor memory device, comprising:
a memory array; a data-maintaining component, utilized to maintain data which is read from the memory array, or to maintain data which is written to the memory array; an external input/output terminal; an error-checking correction (ECC) component, coupled to the data-maintaining component, utilized to execute error detection or correction for data which is input to the data-maintaining component or for output data from the data-maintaining component; and a compression component, coupled between the external input/output terminal and the ECC component, utilized to execute compression or extension for data, wherein the compression component compresses data which is provided by the external input/output terminal, provides the compressed data to the ECC component, extends data which is provided from the ECC component, and provides the extended data to the external input/output terminal, and the compression component compresses input data to become data which comprises a data type and a consistency number of the data type.