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Fairchild Semiconductor - 3-Pin C Supervisor Device

Numéro de référence FM803
Description 3-Pin C Supervisor Device
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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FM803 fiche technique
FM803
3-Pin µC Supervisor Device
October 2002
General Description
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.
Several threshold voltages are offered to accommodate 5.0V,
3.3V, 3.0V and 2.7V system voltages.
These devices are offered in space saving 3-pin SOT23 and SC70
packages.
Typical Operating Circuit
VCC
Features
I Automatic reset generation on power-up
I Minimum 140 ms reset pulse
I Internal 5kpull-up resistor
I Other reset pulse choices available: 32 - 256 ms
I Operating temperature
-40°C to + 105°C (SOT-23)
-40°C to +85°C (SC70)
I Choice of Reset Thresholds: 4.63V, 4.38V, 4.00V, 3.08V,
2.93V, 2.63V
I SOT23-3 and SC70-3 Packages
3
FM803
Controller
GND
Connection Diagram
1
2
/RESET
GND 1
FM803 3 VCC
/RESET 2
SC70-3 & SOT23-3 Packages
© 2000 Fairchild Semiconductor International
FM803 Rev. C.3
1
www.fairchildsemi.com

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