CYT 809
Microprocessor Reset Monitoror(Preliminary)
General Description
Features
The CYT809 is a cost-effective system
supervisor circuits designed to monitor VCC in
digital systems and provide a reset signal to the
host processor when necessary. No external
components are required.
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Precision VCC Monitor for 3.0V, 3.3V, and 5.0V
Supplies
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140msec Guaranteed Minimum RESET Output
Duration
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RESET Output Guaranteed to VCC=1.0V
Low 15µA Supply Current
VCC Transient Immunity
The reset output is driven active within 20µsec
of VCC falling through the reset voltage
threshold.Reset is maintained active for a
minimum of140msec after VCC rises above the
reset threshold.The CYT809 has an active-low
RESET output. The output of the CYT809 is
guaranteed valid down to VCC=1V. Both devices
are available in a SOT-23 package.
Small SOT-23 Package
No External Components
Applications
The CYT809 is optimized to reject fast
transient glitches on the VCC line. Low supply
current of 15µA (VCC=3.3V) makes these
devices suitable for batterypowered applications.
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Computers
Embedded systems
Battery powered equipment
Critical µP power supply monitoring
SOT-23 Package
ShenZhen CYT IC Design CO ,Ltd
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