MIC8115 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – Microprocessor Reset Circuit

MIC8115 Microprocessor Reset Circuit
MIC8115
Microprocessor Reset Circuit
Description
The MIC8115 is an inexpensive microprocessor reset
circuit 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 MIC8115 has an active low RESET output. The
reset output is guaranteed to remain asserted for a
minimum of 1100ms after VCC has risen above the
designated reset threshold level. The MIC8115 comes
in a 4-pin SOT-143 package.
Pin Configuration
Top View
GND 1
4 VCC
MIC81 15
RESET 2
3 MR
Typical Applications
· ^{Portable Equipment}
· ^{Intelligent Instruments}
· ^{Critical Microprocessor Power Monitoring}
· ^{Printers/Computers}
· ^Controllers
Ordering Information
Part
MIC8115TU
Package
4-Lead SOT-143
Temp. Range
-40°C to +85°C
Place the device suffix of desired reset threshold voltage from table above in
blank to complete the part number.
Features
· RESET Remains Valid with VCC as Low
as 1.4V
· Precision Voltage Monitor for 3.3V
Power Supplies
· ^{Available in 4-Pin SOT-143 Package}
· ^{<15µA Supply Current}
· ^{1100ms Minimum Reset Pulse Width}
· ^{Manual Reset Input}
· ^{Specifically tailored to the reset}
requirements of the
AMD Elan SC500 Series
Typical Operating Circuit
VCC
VCC
MIC81 15
RESET
MR
VCC
µP
RESET
1