MIC811SUY-TR by Microchip Technology
Microprocessor Reset Circuit with Manual Reset, Push-Pull Active-Low Output, 4.6 Vthresh
| Status: | Active |
|---|---|
| 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.
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 |
Specifications
| Product Type | Supervisor |
|---|---|
| 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) |
Last 6 months Inventory & Pricing History
Resources
Data Sheets |
|---|
| Microprocessor Reset Circuits |
Application Notes |
|---|
| Micrel AN 15 - Practical Switching Regulator Circuits - Practical Switching Regulator Circuits |
Environmental Information
| JEDEC Indicator | e4 |
|---|---|
| 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 |
Alternative Descriptions
| Processor Supervisor 3V 1 to 5.5V 4-Pin SOT-143 T/R | Avnet America |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MIC811SUY-TR?
Additional datasheets, footprints and schematics for MIC811SUY-TR are listed on our Part Details page. You can also find images and similar parts to MIC811SUY-TR on this page.
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Is the MIC811SUY-TR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
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Authorised distributors including Avnet America have stock available or on a lead time for MIC811SUY-TR.
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