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.

Date of Patent:
May. 07, 2002

Filed:

Jun. 11, 2001
Applicant:
Inventors:

Mathew R. Arcoleo, San Jose, CA (US);

Cathal G. Phelan, Mountain View, CA (US);

Ashish Pancholy, Milpitas, CA (US);

Simon J. Lovett, Milpitas, CA (US);

Assignee:

Cypress Semiconductor Corp., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 ;
U.S. Cl.
CPC ...
G11C 8/00 ;
Abstract

A random access memory with a data input bus, a data output bus, a random access memory array configured to transfer data to random write addresses and from random read addresses in the random access memory array, an address bus providing the random read addresses and the random write addresses, and a first periodic signal configured to control data transfer operations (i) to the random access memory array in response to a first transition of the periodic signal and (ii) from the random access memory array in response to a second transition of the periodic signal, wherein the second transition of the periodic signal is complementary to the first transition of the periodic signal. One preferred embodiment further includes circuitry operable to write data into and read data from the random access memory array. Other preferred embodiments further include a write data register and/or a read data register. In a further embodiment, each of the data input bus and the data output bus is unidirectional. The invention also concerns a process for reading data from and writing data to a random access memory array.


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