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. 29, 1984
Filed:
Oct. 26, 1981
Applicant:
Inventors:
William J Donoghue, Round Rock, TX (US);
Rodney C Tesch, Austin, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365203 ; 365190 ;
Abstract
A pull-up circuit for a memory provides an additional natural transistor between a power supply and diode-connected transistors which reduces the voltage on bit sense lines sufficiently to allow selected column select transistors to turn on prior to a memory cell being enabled. Additional control circuitry further reduces the voltage to the diode-connected transistors when no memory cells have been selected to be enabled to compensate for the reduction in voltage drop across the natural transistor when no current is flowing through it.