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SGM811 - Microprocessor Supervisory

General Description

The SGM811/SGM812 supervisory circuits monitor the power supply voltage in microprocessor and digital systems.

The SGM811/SGM812 are designed to monitor eight different voltages; these voltages have been selected for the effective monitoring of 1.8V, 2.5V, 3V, 3.3V and 5V supply voltage levels.

Key Features

  • Superior Upgrade for MAX811/MAX812 and ADM811/ADM812.
  • Full Specified over Temperature.
  • Low Power Consumption: 13μA (TYP).
  • Precision Voltage Monitor: 1.8V, 2.5V, 3V, 3.3V and 5V Options.
  • Reset Assertion Down to 1V VCC.
  • 150ms (MIN) Power-On Reset Logic Low nRESET Output (SGM811) Logic High RESET Output (SGM812).
  • Manual Reset Input.
  • Available in Green SOT-143 and SOT-23-5 Packages.

📥 Download Datasheet

Datasheet Details

Part number SGM811
Manufacturer SG Micro
File Size 690.85 KB
Description Microprocessor Supervisory
Datasheet download datasheet SGM811 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SGM811/SGM812 Microprocessor Supervisory Circuits with Manual Reset Input GENERAL DESCRIPTION The SGM811/SGM812 supervisory circuits monitor the power supply voltage in microprocessor and digital systems. The SGM811/SGM812 are designed to monitor eight different voltages; these voltages have been selected for the effective monitoring of 1.8V, 2.5V, 3V, 3.3V and 5V supply voltage levels. They provide a reset output during power-up, powerdown and brownout conditions. On power-up, an internal timer holds reset asserted for 240ms. This holds the microprocessor in a reset state until conditions have stabilized. The nRESET output remains operational with VCC as low as 1V. The SGM811 provides an active low reset signal (nRESET) while the SGM812 provides an active high signal (RESET) output.