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STM32L151VD датащи(PDF) 100 Page - STMicroelectronics

номер детали STM32L151VD
подробное описание детали  Ultra-low-power 32-bit MCU ARM-based Cortex-M3, 384KB Flash
PDF  140 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
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STM32L151VD датащи(HTML) 100 Page - STMicroelectronics

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Electrical characteristics
STM32L151xD STM32L152xD
100/140
Doc ID 022027 Rev 6
Figure 25.
I/O AC characteristics definition
6.3.14
NRST pin characteristics
The NRST pin input driver uses CMOS technology.
Unless otherwise specified, the parameters given in Table 53 are derived from tests
performed under ambient temperature and VDD supply voltage conditions summarized in
Table 14.
ai14131
10%
90%
50%
tr(IO)out
External
Output
on 50pF
Maximum frequency is achieved if (tr + tf)  2/3)T and if the duty cycle is (45-55%)
10%
50%
90%
when loaded by 50 pF
T
tr(IO)out
Table 53.
NRST pin characteristics
Symbol
Parameter
Conditions
Min
Typ Max Unit
VIL(NRST)
(1)
1.
Guaranteed by design, not tested in production.
NRST input low level voltage
VSS
-0.8
V
VIH(NRST)
(1)
NRST input high level voltage
1.4
-
VDD
VOL(NRST)
(1)
NRST output low level
voltage
IOL = 2 mA
2.7 V < VDD < 3.6 V
--
0.4
IOL = 1.5 mA
1.65 V < VDD < 2.7 V
--
Vhys(NRST)
(1) NRST Schmitt trigger voltage
hysteresis
10%VDD
(2)
2.
200 mV minimum value
--
mV
RPU
Weak pull-up equivalent
resistor(3)
3.
The pull-up is designed with a true resistance in series with a switchable PMOS. This PMOS contribution to
the series resistance is around 10%.
VIN = VSS
30
45
60
k
Ω
VF(NRST)
(1)
NRST input filtered pulse
-
-
50
ns
VNF(NRST)
(1)
NRST input not filtered pulse
350
-
-
ns



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