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MIC1815 Datasheet(PDF) 1 Page - Micrel Semiconductor

Part No. MIC1815
Description  Microprocessor Reset Circuit
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Maker  MICREL [Micrel Semiconductor]
Homepage  http://www.micrel.com
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MIC1815 Datasheet(HTML) 1 Page - Micrel Semiconductor

   
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1
The MIC1815 is an inexpensive microprocessor
supervisory circuit that monitor power supplies in
microprocessor based systems.
The function of these devices is to assert a reset if the
power supply drops below a designated reset threshold
level. Several different reset threshold levels are
available to accomodate 10% or 20% drop in 3.3V
powered systems.
The MIC1815 has an active low RESET output. The
reset output is guaranteed to remain asserted for a
minimum of 100ms after VCC has risen above the
designated reset threshold level. The MIC1815 comes
in a 3-pin SOT-23 package.
1
2
3
VCC
GND
MIC1815
RESET
Top View
Part
Package
Temp. Range
MIC1815_U
3-Lead SOT23
-40°C to +85°C
Place the device suffix of desired reset threshold voltage from table above in
blank to complete the part number.
· Portable Equipment
· Intelligent Instruments
· Critical Microprocessor Power Monitoring
· Printers/Computers
· Controllers
· RESET Remains Valid with VCC as Low
as 1.4V
· Precision Voltage Monitor for 10% or
20% drop in 3.3V Power Supplies
· Available in 3-Pin SOT23 Package
· 9µA Supply Current
· 100ms Minimum Reset Pulse Width
· No External Components Required
8++
4-5-6
µP
4-5-6
8++
MIC1815
8++
Typical Operating Circuit
Features
Description
Pin Configuration
Ordering Information
Typical Applications
Reset Threshold
Device
Voltage (V)
Suffix
2.88
-10
2.55
-20
MIC1815 Microprocessor Reset Circuit
MIC1815
Microprocessor Reset Circuit


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