Patent · US Expired

Semiconductor memory device

US4558434A · kind A · utility

6Cited by
1References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 25, 1984
Grant dateDec 10, 1985
Priority date
Expiry dateJan 25, 2004

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C7/1006
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A semiconductor memory device having matrix-arranged memory cells, carrying out data write or read operations to or from a selected memory cell through a pair of data buses by the selection of a word line and a pair of bit lines, includes two transfer devices which transfer data between bit lines and data buses and which are separately operated for either writing or reading. Even if a data read operation is stopped midway by a system reset or the like, the stored data in the memory cell is not destroyed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.