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Reference Guide
Table 25.
USR3500 Reset Status
(Serial
Signal
Port) Pin #
14
Reset
Table 26.
Reset Electrical Characteristics for USR3500
Parameter
Input Impedance (R)*
Input Impedance (C)
*
Internal pull-up
Table 27.
Reset Operating Conditions
Parameter
1
~Reset time (Rt)
2
~Reset time (Rt)
(at power up only)
Cancellation time (Ct)
V
*
H
V
IL
V
IH
*
V
= Hysterisis Voltage
H
1:
This reset time is the minimum to be carried out on the ~Reset signal when the power supply is stabilized.
2:
This reset time is internally carried out by the embedded module power supply supervisor only when the
embedded module power supplies are powered ON.
I/O
I/O Type
Voltage
I/O
Open drain
1V8
Rev 1.0
Description
USR3500 Reset
Minimum
Typical
10
20
Minimum
Typical
200
20
40
34
0.57
0
1.33
1/27/14
Signals and Indicators
Maximum
Unit
kΩ
nF
Maximum
Unit
µs
100
ms
ms
V
0.57
V
V
38
38
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