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IMP809 View Datasheet(PDF) - IMP, Inc

Part NameDescriptionManufacturer
IMP809 3-Pin Microcontroller Power Supply Supervisor IMP
IMP, Inc IMP
IMP809 Datasheet PDF : 7 Pages
1 2 3 4 5 6 7
Pin Descriptions
Pin Number
1
2
(IMP809)
2
(IMP810)
3
Name
GND
RESET
RESET
VCC
IMP809, IMP810
Function
Ground
RESET is asserted LOW if VCC falls below the reset threshold and remains LOW for the
240ms typical reset timeout period (140ms minimum) after VCC exceeds the threshold.
RESET is asserted HIGH if VCC falls below the reset threshold and remains HIGH for the
240ms typical reset timeout period (140ms minimum) after VCC exceeds the threshold.
Power supply input voltage (3.0V, 3.3V, 5.0V)
Detailed Descriptions
Reset Timing
The reset signal is asserted–LOW for the IMP809 and HIGH for the
IMP810–when the VCC signal falls below the threshold trip voltage
and remains asserted for 140ms minimum after the VCC has risen
above the threshold.
5V
VCC
0V
5V
RESET
0V
5V
RESET
0V
VTH
Active Reset
Timeout Period
140ms
minimum
IMP809
Figure 1. Reset Timing Diagram
IMP810
809/10_03.eps
4
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