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.

FEATUREs
● Precise Reset Threshold: ±2.5%
● CMOS Output(CN809/810) and Open Drain
   Output(CN803)
● 140ms min Reset Pulse Width
● 3.2µA Supply Current @VCC=3V
● Guaranteed Reset Valid to VCC = +1.15V
● Power Supply Transient Immunity
● Operating Temperature Range
   -40°C to +85°C
● Available in SOT23-3

APPLICATIONs
● Computers
● Portable/Battery-Powered Equipment
● Intelligent Instruments
● Controllers