Invention Grant
US09219480B2 Low tau synchronizer flip-flop with dual loop feedback approach to improve mean time between failure 有权
低同步触发器采用双回路反馈方式,提高故障间的平均时间

Low tau synchronizer flip-flop with dual loop feedback approach to improve mean time between failure
Abstract:
A flip-flop and a method of receiving a digital signal from an asynchronous domain. In one embodiment, the flip-flop includes: (1) a first loop coupled to a flip-flop input and having first and second stable states and (2) a second loop coupled to the first loop and having the first and second stable states, properties of cross-coupled inverters in the first and second loops creating a metastable state skewed toward the first stable state in the first loop and skewed toward the second stable state in the second loop. Certain embodiments of the flip-flop have lower time constant and thus a higher Mean Time Between Failure (MTBF).
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