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:
Jul. 24, 1990
Filed:
Oct. 28, 1988
Keniti Imamiya, Yokohama, JP;
Sumio Tanaka, Oomorinishi, JP;
Junichi Miyamoto, Yokohama, JP;
Shigeru Atsumi, Tokyo, JP;
Nobuaki Ohtsuka, Yokohama, JP;
Shinji Saito, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A nonvolatile semiconductor memory of this invention is constituted to latch input data into data latch circuits and at the same time control the programming operation of the bit line load transistors when the chip enable signal is made active and a page programming power source voltage is set at the programming voltage, while the output enable signal is kept inactive. Further, when the output enable signal is made active or the programming power source voltage is set at a voltage different from the programming voltage, the data latch circuits are reset. The data latch circuits can be selectively specified by a preset combination of bits.