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1/18November 2004
STM809, STM810
STM811, STM812
Reset Circuit
FEATURES SUMMARY
■ PRECISION MONITORING OF 3V, 3.3V, and
5V SUPPLY VOLTAGES
■ TWO OUTPUT CONFIGURATIONS
– Push-pull RST
Output (STM809/811)
– Push-pull RST Output (STM810/812)
■ 140ms RESET PULSE WIDTH (MIN)
■ LOW SUPPLY CURRENT - 6µA (TYP)
■ GUARANTEED RST/RST ASSERTION
DOWN TO V
CC
= 1.0V
■ OPERATING TEMPERATURE:
–40°C to 85°C (Industrial Grade)
■ LEAD-FREE, SMALL SOT23 and SOT143
PACKAGE
Table 1. Device Options
Figure 1. Packages
Active-
Low
RESET
Active-
High
RESET
Manual
RESET
Input
Package
STM809 ✔ SOT23-3
STM810 ✔ SOT23-3
STM811 ✔✔SOT143-4
STM812 ✔✔SOT143-4
SOT23-3 (WX)
SOT143-4 (W1)
