Patent · US Expired

Apparatus for programming a dynamic EPROM

US4289982A · kind A · utility

15Cited by
2References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 28, 1979
Grant dateSep 15, 1981
Priority date
Expiry dateJun 28, 1999

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03K19/096
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

An insulated-gate field-effect-transistor (IGFET) quasi-static decoder for programming an electronically-programmable read-only memory (EPROM) applies to the floating gate of selected memory devices a programming voltage. Prior to selection, each row and column conductor of the memory is latched at a first voltage. Precharge circuitry responsive to a single precharge pulse establishes an enabling voltage for unlatching a selected row and column. The selected row and column is then coupled via a switch to a source of programming voltage.

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