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PDF SE809 Data sheet ( Hoja de datos )
| Número de pieza | SE809 | |
| Descripción | 3-Pin Microprocessor Reset Monitor | |
| Fabricantes | Seaward Electronics | |
| Logotipo |  |
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3-Pin Microprocessor Reset Monitor
(Preliminary)
SE809
Description
The SE809 is a cost-effective system
supervisor Integrated Circuit (IC) designed to
monitor VCC in digital and mixed signal systems and
provide a warning signal when the system power
supply is out of working range, and a reset signal to
the host processor when necessary. No external
components are required.
The reset output is driven active within 20μsec
of VCC falling through the reset voltage threshold.
Reset is maintained active for a minimum of
140msec after VCC rises above the reset threshold.
The SE809 has an active-low RESET output. The
output of the SE809 is guaranteed valid down to
VCC=1V. Both devices are available in a SOT-23
package.
The SE809 is optimized to reject fast transient
glitches on the VCC line. Low supply current of 18μA
(VCC=3.3V) makes these devices suitable for battery
powered applications.
Features
¾ Precision VCC Monitor for 2.8V, 3.0V, 3.3V, and
5.0V Supplies
¾ 140msec Guaranteed Minimum RESET Output
Duration
¾ RESET Output Guaranteed to VCC=1.0V
¾ Low 18μA Supply Current
¾ VCC Transient Immunity
¾ Small SOT-23 Package
¾ No External Components
¾ Wide Operating Temperature: 0°C to 85°C
Application
¾ Computers
¾ Embedded systems
¾ Battery powered equipment
¾ Critical µP power supply monitoring
Pin Configuration
Application Diagram
Preliminary and all contents are subject to change without prior notice.
© Seaward Electronics, Inc., 2005. • www.seawardinc.com
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| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet SE809.PDF ] | |
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