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:
Jun. 28, 2016
Filed:
Feb. 24, 2014
Dzung T. Tran, Austin, TX (US);
Trong D. Nguyen, Austin, TX (US);
Dzung T. Tran, Austin, TX (US);
Trong D. Nguyen, Austin, TX (US);
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Abstract
Dual-voltage detectors and related methods are disclosed that receive control signals from a first supply voltage domain and provide multiple disable outputs within a separate supply voltage domain. The disclosed embodiments detect a power supply status in one supply voltage domain (e.g., 1.2 volts, ground) and then assert low voltage disable or reset signals to downstream circuitry within a different supply voltage domain that is powered with different supply voltages (e.g., 1.8 volts, 0.9 volts, ground). In certain embodiments, the dual-voltage detectors provide two disable signals to stacked output drivers that are used to tri-state the stacked output drivers to place them in a high-impedance (HIGH-Z) state, for example, during power-up or power-down operations.