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Partname:FM803LS3X
Description:3-Pin ??C Supervisor Device
Manufacturer:Fairchild Semiconductor
Datasheet:PDF (345K).
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The FM803 is a supervisory device designed to monitor power supply or other system voltage. FM803 generates a reset pulse whenever the voltage being monitored is out of tolerance. Once asserted, the reset pulse is guaranteed to be valid for a minimum of 140ms (256ms typical ). The reset output of FM803 is of active low Open-Drain type and has an internal pull-up resistor.

Click here to download FM803LS3X Datasheet
Click here to download FM803LS3X Datasheet
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