Self-setting/resetting latch
Abstract:
A self-setting/resetting latch circuit is disclosed that includes resistive loads for inverters used for setting and clearing the latch. In a first embodiment, the resistive loads cause the latch circuit to automatically set in response to a power supply voltage going low. In an alternate embodiment, the latch circuit is configured to be self-resetting or self-clearing when the power supply voltage goes low by reversing the set and clear terminals of the latch circuit and selecting a different node to be the output terminal of the latch circuit. The disclosed latch circuit is small and robust and draws zero power in the set state.
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