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MIC811 - Microprocessor Reset Circuits

Description

The MIC811 and MIC812 are inexpensive microprocessor supervisory circuits that monitor power supplies in microprocessor based systems.

The function of this device is to assert a reset if either the power supply drops below a designated reset threshold level or /MR is forced low.

Features

  • Precision voltage monitor for 3V, 3.3V or 5V power supplies.
  • /RESET remains valid with VCC as low as 1V.
  • 5μA typical supply current.
  • 140ms minimum reset pulse width available.
  • Manual reset input.
  • Available in 4-pin SOT-143 package.

📥 Download Datasheet

Datasheet preview – MIC811

Datasheet Details

Part number MIC811
Manufacturer Micrel Semiconductor
File Size 193.91 KB
Description Microprocessor Reset Circuits
Datasheet download datasheet MIC811 Datasheet
Additional preview pages of the MIC811 datasheet.

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Full PDF Text Transcription

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MIC811/812 Microprocessor Reset Circuits General Description The MIC811 and MIC812 are inexpensive microprocessor supervisory circuits that monitor power supplies in microprocessor based systems. The function of this device is to assert a reset if either the power supply drops below a designated reset threshold level or /MR is forced low. Several different reset threshold levels are available to accommodate 3V, 3.3V or 5V powered systems. The MIC811 has an active low /RESET output, while the MIC812 offers an active high RESET output. The reset output is guaranteed to remain asserted for a minimum of 140ms after VCC has risen above the designed reset threshold level. Having a push-pull output stage, the MIC811/812 does not require a pull-up resistor at the output.
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