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PDF FM811 Data sheet ( Hoja de datos )
| Número de pieza | FM811 | |
| Descripción | Microprocessor Reset Circuits | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de FM811 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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FM811/812
Microprocessor Reset Circuits
www.fairchildsemi.com
Features
• Feature
• Precision Voltage Monitor for 3V, 3.3V or 5V Power
Supplies
• 6µA Supply Current
• 140ms Minimum Reset Pulse Width
• RESET Remains Valid with VCC as Low as 1.4V
• Active Low Manual Reset Input
• No External Components
• 4-Pin SOT-143 Package
Applications
• Critical Microprocessor Power Monitoring
• Portable Equipment
• Intelligent Instruments
• Computers & Printers
• Controllers
Typical Applications
Description
The FM811/FM812 is a low cost microprocessor supervisory
circuit that asserts a reset if the power supply drops below a
designated threshold or the manual reset pin is forced low.
Several different reset thresholds are available to
accommodate systems operating at 3V, 3.3V or 5V.
The FM811 has an active low RESET output, while the
FM812 offers an active high RESET output. The reset output
is guaranteed to remain asserted for a minimum of 140ms
after VCC has risen above the designated reset threshold.
The FM811/FM812 is available in a 4-pin SOT-143.
VCC
VCC
FM811
FM812
RESET
(RESET)
MR
VCC
µP
RESET
INPUT
( ) = FM812
PRELIMINARY INFORMATION describes products that are in the design stage. Specifications may change
in any manner whatever without notice. Contact Fairchild Semiconductor for current information.
REV. 1.5.1 7/15/02
1 page  
Packaging Information
4-Pin SOT-143
0.079
0.071
0.037
0.030
0.120
0.105
0.080
0.070
0.055 0.098
0.047 0.083
0.021
0.015
Dimensions are in inches
0.040
0.031
0.004
0.001
0.0059
0.0035
0.010
0.005
FM811/812
Tape and Reel Information
4.0 ± 0.1
2.0 ± 0.05
O1.5 ± 0.1
1.75 ± 0.1
2.7 ± 0.1
3.1 ± 0.1
4.0 ± 0.1
1.2 ± 0.1
3.5 ± 0.05
8.0 ± 0.3
O1.1 ± 0.1
Dimensions are in millimeters
REV. 1.5.1 7/15/02
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet FM811.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| FM811 | Microprocessor Reset Circuits | Fairchild Semiconductor |
| FM812 | Microprocessor Reset Circuits | Fairchild Semiconductor |
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