IMP8 1 1 , IMP8 1 2
Bi-directional Reset Pin Interfacing
The IMP811/812 can interface with µP/µC bi-directional reset
pins by connecting a 4.7kΩ resistor in series with the IMP809/810
reset output and the µP/µC bi-directional reset pin.
BUF
Buffered
RESET
VCC
Power
Supply
IMP811
4.7kΩ
MR
RESET
GND
Bi-directional I/O Pin
(Example: 68HC11)
µC
or
µP
RESET
Input
GND
811/12_06.eps
Figure 4. Bi-directional Reset Pin Interface
Plastic SOT-143 (4-Pin)
Inches
B
e1
Package Dimensions
Millimeters
Max
Min
Max
Plastic SOT-143 (4-Pin)
0.047
0.005
0.022
0.038
0.006
0.120
0.055
0.080
0.079
0.098
0.012
0.787
0.025
0.356
0.762
0.086
2.667
1.194
1.778
1.803
2.083
0.102
1.194
0.127
0.559
0.965
0.152
3.048
1.397
2.032
2.007
2.489
0.305
Min
A
E
H
0.031
0.001
0.014
0.030
0.0034
0.105
0.047
0.070
0.071
0.082
0.004
A1
B
B1
B1
e
D
A
a = 0°-8°
C
D
E
e
e1
H
I
SOT-143 (4-Pin).eps
A1
e
C
L
7
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