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MIC812

Microprocessor Reset Circuit with Manual Reset, Push-Pull Active-High Output, 4.0 V Thresh

Status: In Production

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
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

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. The MIC811/812 comes in a 4-pin SOT-143 package.

If a microprocessor voltage supervisor with an open-drain output stage is needed, see MIC6315.

Additional 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
Parametrics
Name
Value
Product Type
Supervisor
Manual Reset
Yes
Operating Temp. Range (°C)
-40 to 85
Vcc Range (V)
1.4 - 5.5
Nominal Reset Voltage (V)
2.63, 2.93, 3.08, 4.00, 4.38, 4.63
Reset Type
Active Low/High or High/Low
Output
Push-Pull
Typical Reset Pulse Width (ms)
140
Typical Supply Current (µA)
5

Documents

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Data Sheets

11/09/2015
207KB

Development tools data is currently unavailable.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC812SUY-TR
0.011000
0.036000
4
SOT-143
-
NiPdAu
e4
MIC812LUY-TR
0.011000
0.036000
4
SOT-143
-
NiPdAu
e4
MIC812MUY-TR
0.011000
0.036000
4
SOT-143
-
NiPdAu
e4
MIC812RUY-TR
0.011000
0.036000
4
SOT-143
-
NiPdAu
e4
MIC812JUY-TR
0.011000
0.036000
4
SOT-143
-
NiPdAu
e4
MIC812TUY-TR
0.011000
0.036000
4
SOT-143
-
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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