I need to connect a brown-out reset circuit to the MCLR/RESET pin of a microcontroller. How should I connect it to allow in-circuit programming?
Answer
Voltage tolerance: Ensure the brown-out reset IC is rated to withstand the maximum possible voltage on its output; in some cases this can be up to 13 V.
Series protection: Insert a series resistor of 1 kΩ or higher between the brown-out reset IC output and the MCLR/RESET pin.
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