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:
May. 05, 2020
Filed:
Apr. 16, 2019
Winbond Electronics Corp., Taichung, TW;
Hitoshi Ikeda, Kanagawa, JP;
Winbond Electronics Corp., Taichung, TW;
Abstract
A control circuit and a control method for a pseudo static random access memory are provided. The control circuit counts a number of latch times of data based on an external clock to generate a first count value, counts a number of write times of the data based on an asynchronous column address strobe clock to generate a second count value, and compares the first count value and the second count value. The control circuit provides a column address strobe clock according to the asynchronous column address strobe clock in an asynchronous mode. At the time of a first occurrence of the first count value being equal to the second count value, the control circuit enters a write operation into a synchronous mode from the asynchronous mode to adjust a period of the asynchronous column address strobe clock to a period of the external clock.