HomedatasheetMIC811SU

MIC811SU Datasheet

Supervisory Circuits
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Description

The MIC811( MIC811SU ) 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. MIC811SU 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 MIC811SU Applications • Portable equipment• Intelligent instruments• Critical microprocessor power monitoring• Printers/computers• Embedded controllers
Features

Parameters

[{"Name":"Number of Voltages Monitored:","Value":"1"},{"Name":" Threshold Voltage:","Value":"3 V, 3.3 V, 5 V"},{"Name":"Supply Voltage - Max:","Value":"5.5 V"},{"Name":"Maximum Operating Temperature:","Value":"+ 85 C"},{"Name":" Minimum Operating Temperature:","Value":"- 40 C"},{"Name":"Maximum Power Dissipation:","Value":"320 mW"},{"Name":"Operating Supply Current:","Value":"5 uA"},{"Name":" Reset Delay Time:","Value":"0.5 us"},{"Name":"Supply Voltage - Min:","Value":"1 V"},{"Name":"","Value":""}]

Manufacturer information

ROHM
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