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STM32L151V6H6T 查看數據表(PDF) - STMicroelectronics

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STM32L151V6H6T Datasheet PDF : 133 Pages
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STM32L151x6/8/B STM32L152x6/8/B
Electrical characteristics
Figure 19. I/O AC characteristics definition






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NRST pin characteristics
The NRST pin input driver uses CMOS technology. It is connected to a permanent pull-up
resistor, RPU (see Table 45).
Unless otherwise specified, the parameters given in Table 45 are derived from tests
performed under ambient temperature and VDD supply voltage conditions summarized in
Table 13.
Table 45. NRST pin characteristics
Symbol
Parameter
Conditions
Min
Typ
Max Unit
VIL(NRST)(1) NRST input low level voltage
-
VIH(NRST)(1) NRST input high level voltage
-
-
-
0.8
1.4
-
VOL(NRST)(1)
NRST output low level
voltage
IOL = 2 mA
2.7 V < VDD < 3.6 V
-
IOL = 1.5 mA
1.65 V < VDD < 2.7 V
-
-
V
0.4
-
Vhys(NRST)(1)
NRST Schmitt trigger voltage
hysteresis
-
- 10%VDD(2)
mV
RPU
Weak pull-up equivalent
resistor(3)
VIN = VSS
30
45
60 kΩ
VF(NRST)(1) NRST input filtered pulse
-
-
-
50 ns
VNF(NRST)(1) NRST input not filtered pulse
-
350
-
ns
1. Guaranteed by design.
2. 200 mV minimum value
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%.
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