Invention Grant
- Patent Title: Integrated circuit wake-up control system
- Patent Title (中): 集成电路唤醒控制系统
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Application No.: US13902872Application Date: 2013-05-27
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Publication No.: US09252774B2Publication Date: 2016-02-02
- Inventor: Sunny Gupta , Kumar Abhishek , Nitin Pant , Garima Sharda
- Applicant: Sunny Gupta , Kumar Abhishek , Nitin Pant , Garima Sharda
- Applicant Address: US TX Austin
- Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee Address: US TX Austin
- Agent Charles E. Bergere
- Main IPC: G06F1/26
- IPC: G06F1/26 ; H03K19/00 ; G06F1/32

Abstract:
An integrated circuit (IC) that operates in high and low power modes includes high and low power regulators, first and second sets of circuits, a switch connecting the high power regulator and the second set of circuits, and a wake-up control system. The wake-up control system includes a state machine that enables the high power regulator when the IC is in the high power mode, and enables the low power regulator when the IC is in the low power mode. The switch is closed when the high power regulator reaches a first threshold voltage. The state machine operates on a low frequency clock signal when the IC is in the low power mode and during wake-up, and on a high frequency clock signal in the high power mode after the switch is closed.
Public/Granted literature
- US20140351615A1 INTEGRATED CIRCUIT WAKE-UP CONTROL SYSTEM Public/Granted day:2014-11-27
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