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STM32L151VD Datasheet(PDF) 101 Page - STMicroelectronics

Part # STM32L151VD
Description  Ultra-low-power 32-bit MCU ARM-based Cortex-M3, 384KB Flash
PDF  140 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L151VD Datasheet(HTML) 101 Page - STMicroelectronics

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STM32L151xD STM32L152xD
Electrical characteristics
Doc ID 022027 Rev 6
101/140
Figure 26.
Recommended NRST pin protection
1.
The reset network protects the device against parasitic resets.
2.
The user must ensure that the level on the NRST pin can go below the VIL(NRST) max level specified in
Table 53. Otherwise the reset will not be taken into account by the device.
6.3.15
TIM timer characteristics
The parameters given in the following table are guaranteed by design.
Refer to Section 6.3.12: I/O current injection characteristics for details on the input/output
alternate function characteristics (output compare, input capture, external clock, PWM
output).
ai17854
STM32L15xxx
RPU
NRST(2)
VDD
Filter
Internal reset
0.1 μF
External
reset circuit(1)
Table 54.
TIMx(1) characteristics
1.
TIMx is used as a general term to refer to the TIM2, TIM3 and TIM4 timers.
Symbol
Parameter
Conditions
Min
Max
Unit
tres(TIM)
Timer resolution time
1-
tTIMxCLK
fTIMxCLK = 32 MHz
31.25
-
ns
fEXT
Timer external clock
frequency on CH1 to CH4
0
fTIMxCLK/2
MHz
fTIMxCLK = 32 MHz
0
16
MHz
ResTIM
Timer resolution
16
bit
tCOUNTER
16-bit counter clock period
when internal clock is
selected (timer’s prescaler
disabled)
1
65536
tTIMxCLK
fTIMxCLK = 32 MHz 0.0312
2048
µs
tMAX_COUNT Maximum possible count
-
65536 × 65536
tTIMxCLK
fTIMxCLK = 32 MHz
-
134.2
s



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