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SGM812
Microprocessor Supervisory Circuit with Manual Reset Input
Microprocessor Supervisory Circuit with Manual Reset Input
GENERAL DESCRIPTION

The SGM811 and SGM812 are integrated microprocessor supervisory devices. The devices can be reset under power-up, power-down or even voltage reduction brownout conditions. When VCC is as low as 1V, the reset output can still operate. On the power-on state, the internal timer maintains a 240ms reset assertion that keeps the microprocessor in the reset state until the condition is stable.

The SGM811 has an active-low nRESET output, while the SGM812 has an active-high nRESET output. All devices provide eight reset threshold voltage options for 1.8V, 2.5V, 3V, 3.3V and 5V voltage monitoring.

The devices also provide a manual reset (nMR) function. It can reduce damage that may be caused by loss of control or locking of the system.

The SGM811 and SGM812 are available in Green SOT-143 and SOT-23-5 packages. They operates over an ambient temperature range of -40 to +125.

PIN CONFIGURATIONS

          


FEATURES
  • Superior Upgrade for MAX811/MAX812 and ADM811/ADM812

  • High Accuracy Fixed Detection Options: 1.8V, 2.5V, 3V, 3.3V and 5V

  • Low Current Consumption: 13μA (TYP)

  • 150ms (MIN) Power-On Reset

  • Reset Output Options: Active-High RESET Output

  • Manual Reset Input

  • Reset Assertion Down to 1V VCC

  • -40 to +125 Operating Temperature Range

  • Available in Green SOT-143 and SOT-23-5 Packages

APPLICATIONS

Computers

Battery-Powered Applications

Portable Equipment

Automotive Equipment

Safety Systems

Intelligent Instruments

Critical μP Power Monitoring

ORDERING INFORMATION
Part Number Status Package Pins Pb-Free Temp Range
SGM812-LXN5/TR Production SOT-23-5 5 Y -40℃ to +125℃ Samples
SGM812-MXN5/TR Production SOT-23-5 5 Y -40℃ to +125℃ Samples
SGM812-JXN5/TR Production SOT-23-5 5 Y -40℃ to +125℃ Samples
SGM812-TXN5/TR Production SOT-23-5 5 Y -40℃ to +125℃ Samples
SGM812-SXN5/TR Production SOT-23-5 5 Y -40℃ to +125℃ Samples
SGM812-RXN5/TR Production SOT-23-5 5 Y -40℃ to +125℃ Samples
SGM812-ZXN5/TR Production SOT-23-5 5 Y -40℃ to +125℃ Samples
SGM812-LXKA4/TR Production SOT-143 4 Y -40℃ to +125℃ Samples
SGM812-MXKA4/TR Production SOT-143 4 Y -40℃ to +125℃ Samples
SGM812-JXKA4/TR Production SOT-143 4 Y -40℃ to +125℃ Samples
SGM812-TXKA4/TR Production SOT-143 4 Y -40℃ to +125℃ Samples
SGM812-SXKA4/TR Production SOT-143 4 Y -40℃ to +125℃ Samples
SGM812-RXKA4/TR Production SOT-143 4 Y -40℃ to +125℃ Samples
SGM812-ZXKA4/TR Production SOT-143 4 Y -40℃ to +125℃ Samples
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