MCU voltage monitoring - IC, 2.93 V, -40/+125°C, SOT-143

MCU voltage monitoring - IC, 2,93V, -40/+125°C, SOT-143

Description:
The SGM811B/SGM812B supervisory circuits monitor the power supply voltage in microprocessor and digital systems. The SGM811B/SGM812B are designed to monitor three different voltages, these voltages have been selected for the effective monitoring of 3V and 3.3V supply voltage levels.
They provide a reset output during power-up, power- down and brownout conditions. On power-up, an internal timer holds reset asserted for 200ms. This holds the microprocessor in a reset state until conditions have stabilized. The nRESET output remains operational with VCC as low as 1V. The SGM811B provides an active low reset signal (nRESET) while the SGM812B provides an active high signal (RESET) output.
Included in this circuit is a manual reset input. The manual reset function is very useful, especially if the circuit in which the SGM811B/SGM812B is operating enters into a state that can only be detected by the user. Allowing the user to reset a system manually can reduce the damage or danger that could otherwise be caused by an out-of-control or locked system. The devices come in SOT-143 package.

Features:
- Superior Upgrade for MAX811/MAX812 and ADM811/ADM812
- Fully Specified over Temperature
- Low Power Consumption: < 1µA (TYP)
- Precision Voltage Monitor: 3V and 3.3V Options
- Reset Assertion Down to 1V VCC
- 200ms Power-On Reset (MIN)
- Logic Low nRESET Output (SGM811B)
- Logic High RESET Output (SGM812B)
- Manual Reset Input
- -40° to +125° Operating Temperature Range
- Available in Green SOT-143 Package

Application:
- Microprocessor Systems
- Controllers
- Intelligent Instruments
- Automotive Systems
- Safety Systems
- Portable Instruments