Patent ID: 6256681
Filing Date: 2001-07-03
Classification: G11C

Abstract:
A data buffer for a semiconductor device, comprising:a buffer;a sense amplifier coupled to a memory having cells in a matrix form of rows and columns for reading and writing data to the memory;a first data register array coupled between the buffer and the sense amplifier, wherein the first data register array at least one of (1) stores second data received from the buffer into a second data region of the first data register and concurrently transmits stored first data from a first data region of the first data register array to the sense amplifier, and (2) stores fourth data received from the sense amplifier in the second data region and concurrently transmits stored third data from the first data region to the buffer, wherein the first and second data regions each have plurality of cells are arranged in a matrix form of rows and columns;a control circuitry coupled to the first data register array, the control circuitry dividing the first data register array into the first and second data register regions; anda first decoder circuit connected between the control circuitry and the first data register array that selects a corresponding row of the rows in each of the first and second data regions such that data is respectively read and written into the selected rows of data register cells in the corresponding first and second data regions.