Texas Instruments Corporation

William Douglas Wilson

Hugh Thomas Mair

James Sangwon Song

Vinod J Menezes

Franck Benjamin Dahan

Norman L Culp

Gilles Dubost

Sudha Thiruvengadam

Christophe Pierre Vatinel

Philippe Royannez

A device is provided that includes a chip having a processor and wake-up logic. The device also includes power management circuitry coupled to the chip. The power management circuitry selectively provides a core power supply and an input/output (I/O) power supply to the chip. Even if the power management circuitry cuts off the core power supply to the chip, the wake-up logic detects and responds to wake-up events based on power provided by the I/O power supply.

Detecting wake-up events for a chip based on an I/O power supply

One embodiment of the present invention includes a system for managing power of a memory array. The system comprises a comparator configured to compare a first voltage with a reference voltage. The first voltage can correspond to an operating voltage of at least one of a peripheral circuit associated with the memory array and a logic circuit configured to communicate with the peripheral circuit. The reference voltage can correspond to a minimum threshold voltage for read/write operations of the memory array. The system also comprises an output circuit configured to provide an output voltage to the memory array in response to an output of the comparator. The output voltage can be the greater of the operating voltage of the at least one of the peripheral circuit and the logic circuit and the minimum threshold voltage.

Systems and methods for managing power

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Dallas, TX, United States of America

William Douglas Wilson