The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 1994
Filed:
Mar. 04, 1992
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A semiconductor memory device including: a memory cell array having at least one cell array unit, the cell array unit including a plurality of memory cells; a decoder for selecting at least one the memory cell in accordance with an externally supplied address; an input/output terminal for outputting data read from the selected memory cell and for receiving data supplied externally and sending the data to the selected memory cell; at least one data line for connecting the input/output terminal to each the cell array unit; sense amplifiers serially connected to each the data line in a multiple stage configuration for amplifying the read data; a write buffer connected in parallel with one of the sense amplifiers connected to each data line; by-pass switching elements connected between input and output terminals of the other sense amplifiers connected to each the data line; and a control circuit for applying an on-signal to at least one by-pass switching element when writing data, the on-signal turning on at least one by-pass switching element.