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:
Jan. 19, 1982
Filed:
May. 29, 1980
Applicant:
Inventor:
William J Donoghue, Round Rock, TX (US);
Assignee:
Motorola, Inc., Schaumberg, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365189 ; 365104 ; 365190 ; 365206 ;
Abstract
A memory array having improved isolation between the bit sense common lines is provided by using diode connected transistors. The diode connected transistors substantially eliminate any current flow between bit sense common lines when a certain portion of the column select circuitry has not been selected. Since the blocking transistors prevent current flow there is no noise generated to be coupled to one of the control lines. This results in a memory array which can operate at higher speeds since better differential signals are established to be sensed by the sense amplifier.