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STM32L486XX Datasheet, PDF (150/233 Pages) STMicroelectronics – Batch acquisition mode
Electrical characteristics
STM32L486xx
Figure 23. I/O AC characteristics definition(1)






W U ,2 RXW
W I ,2 RXW
7
0D[LPXPIUHTXHQF\LVDFKLHYHGLI WUWI ” 7DQGLIWKHGXW\F\FOHLV 
ZKHQORDGHGE\WKHVSHFLILHGFDSDFLWDQFH
1. Refer to Table 61: I/O AC characteristics.
069
6.3.15
NRST pin characteristics
The NRST pin input driver uses the CMOS technology. It is connected to a permanent pull-
up resistor, RPU.
Unless otherwise specified, the parameters given in the table below are derived from tests
performed under the ambient temperature and supply voltage conditions summarized in
Table 22: General operating conditions.
Symbol
Parameter
Table 62. NRST pin characteristics(1)
Conditions
Min
Typ
Max
Unit
VIL(NRST)
NRST input low level
voltage
-
VIH(NRST)
NRST input high level
voltage
-
Vhys(NRST)
NRST Schmitt trigger
voltage hysteresis
-
RPU
Weak pull-up
equivalent resistor(2)
VIN = VSS
VF(NRST)
NRST input filtered
pulse
-
VNF(NRST)
NRST input not filtered
pulse
1.71 V ≤ VDD ≤ 3.6 V
-
0.7ₓVDDIOx
-
25
-
350
-
0.3ₓVDDIOx
V
-
-
200
-
mV
40
55
kΩ
-
70
ns
-
-
ns
1. Guaranteed by design.
2.
The pull-up is designed with
resistance is minimal (~10%
aortdrueer).resistance
in
series
with
a
switchable
PMOS.
This
PMOS
contribution
to
the
series
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