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STM32L4P5CEU6 Folha de dados(PDF) 187 Page - STMicroelectronics

Nome de Peças STM32L4P5CEU6
Descrição Electrónicos  Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 150 DMIPS, up to 1-MB Flash memory, 320-KB SRAM, LCD-TFT, ext. SMPS
PDF  311 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L4P5CEU6 Folha de dados(HTML) 187 Page - STMicroelectronics

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DS12903 Rev 2
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STM32L4P5xx
Electrical characteristics
277
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 31. Typical application with an 8 MHz crystal
1. REXT value depends on the crystal characteristics.
Low-speed external clock generated from a crystal resonator
The low-speed external (LSE) clock can be supplied with a 32.768 kHz crystal resonator
oscillator. All the information given in this paragraph are based on design simulation results
obtained with typical external components specified in Table 58. 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).
MS19876V1
(1)
OSC_IN
OSC_OUT
RF
Bias
controlled
gain
fHSE
REXT
8 MHz
resonator
Resonator with integrated
capacitors
CL1
CL2



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