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:
Nov. 25, 1997
Filed:
Nov. 28, 1995
Applicant:
Inventors:
Stefan Paun, Park Ridge, IL (US);
Robert E Garon, Downers Grove, IL (US);
Assignee:
Motorola Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; G06F / ;
U.S. Cl.
CPC ...
365226 ; 36443112 ;
Abstract
An analog switch (100) isolates a microprocessor (120) from potentially damaging programming voltages input to a PROM (110). The microprocessor (120) controls the switch (100) to allow a lower, status voltage to be input to the microprocessor (120). When the PROM (110) is to be programmed, the microprocessor (120) opens the switch (100) to isolate the microprocessor (120) and allow the 12 VDC to only be coupled to the PROM (110).