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FM809

Part Number	FM809
Manufacturer	Fairchild Semiconductor
Description	3-Pin C Supervisor Circuits
Published	Mar 30, 2005
Detailed Description	FM809/810 3-Pin µC Supervisor Circuits October 2002 FM809/810 3-Pin µC Supervisor Circuits General Description The FM8...
Datasheet	FM809 PDF File

Overview

FM809/810 3-Pin µC Supervisor Circuits October 2002 FM809/810 3-Pin µC Supervisor Circuits General Description The FM809/810 are supervisor circuits that monitor power supply or other system voltages and issue 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).
FM809xx offers active low push-pull type of reset while FM810xx offers active high push-pull type.
Several threshold voltages are offered to accommodate 5.
0V, 3.
3V, 3.
0V and 2.
7V system voltages.
The low supply current (typically 2 µA)recommends FM809/810 devices for portable designs or wherever power saving is primary.
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