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PDF FM809 Data sheet ( Hoja de datos )
| Número de pieza | FM809 | |
| Descripción | 3-Pin C Supervisor Circuits | |
| Fabricantes | Fairchild Semiconductor | |
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Hay una vista previa y un enlace de descarga de FM809 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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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.
These devices are offered in space saving 3-pin SOT23 and
SC70 packages.
Features
I VTH voltages of 4.63V, 4.38V, 4.00V, 3.08V, 2.93V and 2.63V
I RESET (FM809) or RESET (FM810) output
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
– -40°C to +105°C (SOT23)
– -40°C to +85°C (SC70)
I SOT23-3 and SC70-3 packages
Applications
I Microcontrollers and Microprocessors
I Appliances
I Power-Supply Monitoring
I Portable Equipment
I Automotive Systems
Typical Operating Circuit
VCC
FM809
RESET
GND
Connection Diagram
VCC
µC
RESET
I/P
GND
GND 1
RESET (809) or
RESET (810) 2
3 VCC
FM809/810
SOT23-3 & SC70-3Packages
©2002 Fairchild Semiconductor Corporation
FM809/810 Rev. F
1
www.fairchildsemi.com
1 page  
Ordering Information (FM809)
Part Number
FM809LS3X
FM809MS3X
FM809JS3X
FM809TS3X
FM809SS3X
FM809RS3X
FM809LP3X
FM809MP3X
FM809JP3X
FM809TP3X
FM809SP3X
FM809RP3X
Top Marking
09L
09M
09J
09T
09S
09R
VLY
VMY
VJY
VTY
VSY
VRY
RESET
Threshold (V)
4.63
4.38
4.00
3.08
2.93
2.63
4.63
4.38
4.00
3.08
2.93
2.63
Output Type
Push-Pull, active LOW
Push-Pull, active LOW
Push-Pull, active LOW
Push-Pull, active LOW
Push-Pull, active LOW
Push-Pull, active LOW
Push-Pull, active LOW
Push-Pull, active LOW
Push-Pull, active LOW
Push-Pull, active LOW
Push-Pull, active LOW
Push-Pull, active LOW
Package Type
3-Pin, SOT23
3-Pin, SOT23
3-Pin, SOT23
3-Pin, SOT23
3-Pin, SOT23
3-Pin, SOT23
3-Pin, SC70
3-Pin, SC70
3-Pin, SC70
3-Pin, SC70
3-Pin, SC70
3-Pin, SC70
Packing
Method
3000 units in T&R
3000 units in T&R
3000 units in T&R
3000 units in T&R
3000 units in T&R
3000 units in T&R
3000 units in T&R
3000 units in T&R
3000 units in T&R
3000 units in T&R
3000 units in T&R
3000 units in T&R
Note 4: Devices listed above feature 250ms typical Reset Pulse width. Consult Fairchild sales for other reset pulse width options.
FM809/810 Rev. F
5 www.fairchildsemi.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet FM809.PDF ] | |
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