Micrel MIC811
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. The MIC811 has an active low /RESET output, while the MIC812 offers an active high RESET output.| Part No. | MIC811 |
|---|---|
| Datasheet | MIC811 Download |
| Manufacturer |  Micrel |
| Description | Microprocessor Reset Circuits |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Several different reset threshold levels are available to accommodate 3V, 3.3V or 5V powered systems. 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. Datasheets and support documentation are available on Micrel’s web site at: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
APPLICATIONS
● Portable equipment● Intelligent instruments
● Critical microprocessor power monitoring
● Printers/computers
● Controllers Typical Application Micrel Inc.
● 2180 Fortune Drive
● San Jose, CA 95131
● USA
● tel +1 (408) 944-0800
● fax + 1 (408) 474-1000
● September 9, 2014 Revision 2.0 Micrel, Inc.
