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STM32MP151AAA3 Datasheet(PDF) 146 Page - STMicroelectronics

No. de pieza STM32MP151AAA3
Descripción Electrónicos  Arm® Cortex®-A7 650 MHz Cortex®-M4 MPU, TFT, 35 comm. interfaces, 25 timers, adv. analog
PDF  245 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32MP151AAA3 Datasheet(HTML) 146 Page - STMicroelectronics

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Electrical characteristics
STM32MP151A
146/245
DS12500 Rev 1
Note:
For information on selecting the crystal, refer to the application note AN2867 “Oscillator
design guide for ST microcontrollers” available from the ST website www.st.com.
Figure 17. Low-speed external clock source AC timing diagram
High-speed external clock generated from a crystal/ceramic resonator
The high-speed external (HSE) clock can be supplied with a 8 to 48 MHz crystal/ceramic
resonator oscillator. All the information given in this paragraph are based on
characterization results obtained with typical external components specified in Table 31. In
the application, the resonator and the load capacitors have to be placed as close as
possible to the oscillator pins in order to minimize output distortion and startup stabilization
time. Refer to the crystal resonator manufacturer for more details on the resonator
characteristics (frequency, package, accuracy).
Table 30. Low-speed external user clock characteristics(1)
Symbol
Parameter
Min
Typ
Max
Unit
fLSE_ext
User external clock source frequency
-
32.768
1000
kHz
VLSEH
OSC32_IN input pin high level voltage
0.7×VDD
-VDD
V
VLSEL
OSC32_IN input pin low level voltage
VSS
-0.3 VDD
tw(LSEH)
tw(LSEL)
OSC32_IN high or low time
250
-
-
ns
1. Guaranteed by design.
ai17529b
OSC32_IN
External
STM32
clock source
VLSEH
tf(LSE)
tW(LSE)
IL
90%
10 %
TLSE
t
tr(LSE)
tW(LSE)
fLSE_ext
VLSEL
Table 31. 8-48 MHz HSE oscillator characteristics(1)
Symbol
Parameter
Operating conditions(2)
Min
Typ
Max
Unit
F
Oscillator frequency
-
8
-
48
MHz
RF
Feedback resistor
-
-
200
-
kΩ



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