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:
Oct. 09, 1990
Filed:
Feb. 21, 1990
Azuma Suzuki, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A static random access memory device is comprised of a write mode detector for detecting a signal state transition of a write enable signal changing to an active state, an input data transition detector for detecting a transition of the input data supplied from exterior, during a continuation of the active state of the write enable signal, an address signal transition detector for detecting a transition of an externally applied address signal during an active state of the write enable signal, a power down timer for generating a pulse signal with a predetermined pulse width in response to any of the detecting signals outputted from the write mode detector, input data transition detector, and address signal transition detector, a gate circuit for permitting the output data from a row decoder to be transferred to memory cells during a period that the power down timer generates a pulse signal, and for inhibiting that data transfer during a period that the power down timer rests, and a write circuit control circuit allowing a write circuit to supply write data to the bit line pair during a period that the power down timer generates a pulse signal, and prohibiting that write data transfer during a period that the power timer rests.