Status: | Active |
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Series: | MIC811 |
RoHS: | Compliant |
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.
Prices starting from US$0.26
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 |
Product Type | Supervisor |
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Watchdog Timer | No |
Manual Reset | Yes |
Power Fail | No |
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 |
Output | Push-Pull |
Typical Reset Pulse Width (ms) | 140 |
Typical Supply Current (µA) | 5 |
Pins | Packaging | 4 | SOT-143 |
Temp Range | -40C to +85C |
Packing Media | Tape and reel (3000) |
Data Sheets |
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Microprocessor Reset Circuits |
Application Notes |
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Micrel AN 15 - Practical Switching Regulator Circuits - Practical Switching Regulator Circuits |
JEDEC Indicator | e4 |
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ROHS | Compliant |
China EFUP | Compliant |
Device Weight (g) | 0.011 |
Shipping Weight (kg) | 0.036 |
Lead Count | 4 |
Package Type | SOT-143 |
Soldering Composition | NiPdAu |
Microprocessor Reset Circuit with Manual Reset, Push-Pull Active-Low Output, 4.6 | Microchip Technology |
Voltage Supervisor, 5Ua, 5.5V, Sot-143-4 | Newark Electronics |
MIC811 Series 4.63V 240 ms Surface Mount Microprocessor Reset Circuit-SOT-143-4 | Future Electronics |
MICROPROCESSOR RESET CIRCUIT WITH MANUAL RESET PUSH-PULL AC | Avnet America |
VOLTAGE SUPERVISOR, 5UA, 5.5V, SOT-143-4 | Farnell |
Where can I find additional details, specifications and documents for a MIC811LUY-TR?
Additional datasheets, footprints and schematics for MIC811LUY-TR are listed on our Part Details page. You can also find images and similar parts to MIC811LUY-TR on this page.
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Is the MIC811LUY-TR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
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