Ultra Low Power Microprocessor Reset IC
CONSONANCE
Ultra Low Power Microprocessor Reset IC
CN803/809/CN810
General Description
The CN803/809/810 series are m...
Description
CONSONANCE
Ultra Low Power Microprocessor Reset IC
CN803/809/CN810
General Description
The CN803/809/810 series are micro- processor
(µP) supervisory circuits used to monitor the
power supplies in µP and digital systems. They
provide excellent circuit reliability and low cost
by eliminating external components.
These circuits perform a single function: they
assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping
it asserted for at least 140ms after VCC has risen above the reset threshold.
The CN809/810 have CMOS outputs, the CN803
has open drain output. The CN803/809 have an
active-low
output, while the CN810 has
an active-high RESET output. The reset
comparator is designed to ignore fast transients on
VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1.15V over the temperature range.
The device is available in 3 pin SOT23 package.
Features
Precise Reset Threshold: ±2.5% CMOS Outpu...
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