fm809ls3x Fairchild Semiconductor, fm809ls3x Datasheet

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fm809ls3x

Manufacturer Part Number
fm809ls3x
Description
3-pin Usupervisor Circuits
Manufacturer
Fairchild Semiconductor
Datasheet

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©2002 Fairchild Semiconductor Corporation
FM809/810 Rev. F
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.
These devices are offered in space saving 3-pin SOT23 and
SC70 packages.
Features
I V
I RESET (FM809) or RESET (FM810) output
Typical Operating Circuit
Connection Diagram
TH
voltages of 4.63V, 4.38V, 4.00V, 3.08V, 2.93V and 2.63V
GND
V
CC
RESET (809) or
RESET (810)
SOT23-3 & SC70-3Packages
FM809
GND
FM809/810
RESET
1
2
1
I 140ms power-on RESET delay (minimum)
I RESET operation guaranteed to 1.0V
I Supply current only 2µA
I No external components
I Operating Range
I SOT23-3 and SC70-3 packages
Applications
I Microcontrollers and Microprocessors
I Appliances
I Power-Supply Monitoring
I Portable Equipment
I Automotive Systems
– -40°C to +105°C (SOT23)
– -40°C to +85°C (SC70)
3
V
CC
RESET
I/P
GND
V
µC
CC
October 2002
www.fairchildsemi.com

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fm809ls3x Summary of contents

Page 1

... TH I RESET (FM809) or RESET (FM810) output Typical Operating Circuit Connection Diagram ©2002 Fairchild Semiconductor Corporation FM809/810 Rev 140ms power-on RESET delay (minimum) I RESET operation guaranteed to 1.0V I Supply current only 2µ external components I Operating Range – ...

Page 2

Absolute Maximum Ratings Voltage on any terminal relative to GND V CC RESET, RESET Input Current Output Current: RESET, RESET These are stress ratings only, and functional operation is not implied for these levels or beyond. Exposure to Absolute Maximum ...

Page 3

Absolute Maximum Ratings Voltage on any terminal relative to GND V CC RESET, RESET Input Current Output Current: RESET, RESET These are stress ratings only, and functional operation is not implied for these levels or beyond. Exposure to Absolute Maximum ...

Page 4

Pin Descriptions Pin Number with overbar, FM809 (RESET); without, FM810 (RESET). Circuit Timing (e.g.: FM809 GND GND When operating properly with 5V in (for example about ...

Page 5

... Ordering Information (FM809) Part Number Top Marking FM809LS3X 09L FM809MS3X 09M FM809JS3X 09J FM809TS3X 09T FM809SS3X 09S FM809RS3X 09R FM809LP3X VLY FM809MP3X VMY FM809JP3X VJY FM809TP3X VTY FM809SP3X VSY FM809RP3X VRY Note 4: Devices listed above feature 250ms typical Reset Pulse width. Consult Fairchild sales for other reset pulse width options. ...

Page 6

Ordering Information (FM810) Part Number Top Marking FM810LS3X 10L FM810MS3X 10M FM810JS3X 10J FM810TS3X 10T FM810SS3X 10S FM810RS3X 10R FM810LP3X ZLY FM810MP3X ZMY FM810JP3X ZJY FM810TP3X ZTY FM810SP3X ZSY FM810RP3X ZRY Note 5: Devices listed above feature 250ms typical Reset ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted 0.021 0.015 0.120 0.105 0.079 0.071 FM809/810 Rev. F 0.098 0.055 0.047 0.083 0.0059 0.0035 0.040 0.031 0.010 0.005 0.004 0.001 PKG C L 0.76 0.95 LAND PATTERN RECOMMENDATION SOT-23 Package Dimensions FS ...

Page 8

... Life Support Policy Fairchild's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of Fairchild Semiconductor Corporation. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support ...

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