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STM32WLE4JC Folha de dados(PDF) 62 Page - STMicroelectronics

Nome de Peças STM32WLE4JC
Descrição Electrónicos  Multiprotocol LPWAN 32-bit Arm® Cortex®-M4 MCUs, LoRa®, (G)FSK, (G)MSK, BPSK, up to 256KB Flash, 64KB SRAM
PDF  146 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32WLE4JC Folha de dados(HTML) 62 Page - STMicroelectronics

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Electrical characteristics
STM32WLE5/E4xx
62/146
DS13105 Rev 9
5.1.6
Power supply scheme
Figure 13. Power supply scheme
Caution:
Each power supply pair (such as VDD/VSS or VDDA/VSS) must be decoupled with filtering
ceramic capacitors as shown in the above figure. These capacitors must be placed as close
as possible to (or below) the appropriate pins on the underside of the PCB to ensure the
good functionality of the device.
Note:
For the UFQFPN48 and WLCSP59 package, VREF+ is internally connected to VDDA.
MSv64325V5
VDD
Backup circuitry
(LSE, RTC and
backup registers)
Kernel logic
(CPU, digital
and memories
I/O
logic
IN
LPR
GPIOs
1.55 to 3.6 V
n x 100 nF + 1 x 4.7 μF
n x VSS
n x VDD
VBAT
VCORE
Power switch
ADC
DAC
COMPs
VREFBUF
VREF+
VREF-
VDDA
10 nF + 1 μF
VDDA
VSS
VREF
100 nF 1 μF
SMPS
MR
VDDSMPS
VLXSMPS
VFBSMPS
VSSSMPS
4.7 μF
VDD
Exposed pad
470 nF
To all modules (VSS/VSSRF)
LDO/SMPS
RFLDO
VDDRF1V5
REG PA
VDDPA (= VDDRF1V5 or VDDSMPS)
VDDRF
15 μH
VBAT
Sub-GHz radio
OUT



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