External brown-out reset circuits

FlipFlops said:

I'm trying to use a PIC16LF87 at 3.3 volts, but the internal brown-out reset circuitry only works down to ~4 volts. I'm having major eeprom corruption problems since the pcb has a hard on/off switch which totally cuts power to the circuit.

Is there a simple solution for an external brown-out reset circuit? Perhaps an IC that I can drop right onto the board?

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FlipFlops said:

Yes, I've seen them. I'm hoping there is a single component IC available that can handle it, since the board has already been routed and prototyped, and there isn't much space.

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