Invention Application
- Patent Title: Flip-Flop Circuit with Glitch Protection
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Application No.: US17150888Application Date: 2021-01-15
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Publication No.: US20220231673A1Publication Date: 2022-07-21
- Inventor: Qi Ye , Ajay Bhatia , Vivekanandan Venugopal
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Main IPC: H03K3/037
- IPC: H03K3/037 ; H03K3/012 ; H03K3/356 ; H03K3/3562

Abstract:
A flip-flop with glitch protection is disclosed. The flip-flop includes a differential amplifier circuit that generates amplifier output signals based on an input data and clock signals and precharges a true data node when a clock signal is inactive. A latch circuit is coupled to the differential amplifier and includes a latch node. Responsive to a current value of the input data signal having a first logic state, the latch node is set at a logic value equivalent to the precharged value during an active phase of the clock signal. Responsive to the current value of the input data signal having a second logic state complementary to the first, during the active phase of the clock signal, the latch circuit causes the latch node to be set to a logic value complementary to the precharged value, using the clock signal and the current value of the input data signal.
Public/Granted literature
- US11496120B2 Flip-flop circuit with glitch protection Public/Granted day:2022-11-08
Information query
IPC分类: