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:
Jun. 27, 2000
Filed:
Oct. 30, 1998
David C McClure, Carrollton, TX (US);
Tom Youssef, Dallas, TX (US);
STMicroelectronics, Inc., Carrollton, TX (US);
Abstract
A low/zero power memory device includes a deselect mode of operation wherein row decoders, column decoders, write decoders, pre-coders, post-coders and like operational circuits of the memory device needed for wordline and column activation are disabled until such time as a memory device supply voltage exceeds a certain threshold. An included test mode circuit detects test mode activation and overrides application of the power fail deselect mode of operation of the device. This activates the wordline and column related operational circuits immediately at power up such that the device powers up with multiple wordlines and columns activated and ready for application of a stress test overvoltage.