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FP6809/6810 3-Pin Microprocessor Reset Circuits Description The FP6809 and FP6810 are cost-effective system supervisory circuits which are designed to monitor micro-processor voltage and VCC in digital systems.
They provide a reset signal to the host processor when necessary.
These circuits assert a reset signal whenever the VCC supply voltage declines below a preset threshold.
They keep reset signal asserted for at least 140ms after VCC has risen above the reset threshold.
The FP6809-N has an open-drain output stage which requires a pull-up resistor while FP6809-C and FP6810-C have push-pull outputs.
The FP6809 has an active-low output while the F...

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