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:
Dec. 03, 1996
Filed:
Dec. 15, 1994
Carla M Golla, Sesto San Giovanni, IT;
Marco Olivo, Bergamo, IT;
SGS-Thomson Microelectronics S.r.l., Agrate Brianza, IT;
Abstract
A double-row address decoding and selection circuitry for an electrically erasable and programmable non-volatile memory device with redundancy comprises a plurality of identical circuit blocks supplied with address signals and each one generating a respective selection signal which is activated by a particular logic configuration of said address signals for the selection of a particular row of the matrix; each one of said circuit blocks also generates a carry-out signal which is supplied to a carry-in input of a following circuit block and is activated when the respective selection signal is activated; a first circuit block of said plurality of circuit blocks has the respective carry-in input connected to a reference voltage; each of said circuit blocks is also supplied with a control signal, which is activated by a control circuitry of the memory device when, during a preprogramming operation preceding an electrical erasure of the memory device, a defective row is addressed, to enable the activation of the respective selection signal if the carry-out signal supplying the respective carry-in input is activated, so that two adjacent rows can be simultaneously selected.