STM32WBA50KG datasheet(19/110 Pages) STMICROELECTRONICS

Part #	STM32WBA50KG

Description	Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M33 with FPU, Bluetooth® 5.4 radio solution

PDF	110 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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19 / 110 page

DS14688 Rev 1

19/110

STM32WBA50KG

Functional overview

3.9.1

Power supply schemes

The devices require a 1.71 to 3.6 V VDD operating voltage supply. Independent supplies can

be provided for specific peripherals:

•

VDD = 1.71 to 3.6 V (functionality guaranteed down to VBORx minimum value)

External power supply for the I/Os, the internal regulator, the system analog such as

reset, power management, and internal clocks and the backup domain. It is provided

externally through the VDD pins. VDDRF must be connected to the same supply used

for VDD.

•

VDDA = 1.62 to 3.6 V

External analog power supply for ADC. The voltage level is independent from the VDD

voltage and must be connected to VDD (preferably) or to VSS pin when this peripheral

is not used.

Figure 3. Power supply overview

MS56631V1

Core

SRAM1

SRAM2

Digital

peripherals

LSE crystal 32 kHz oscillator

RTC, TAMP, Backup registers, RCC_BDCR

VDDA domain

Backup domain

Standby circuitry

(Wake-up logic, IWDG)

LDO regulator

I/O ring

VCORE domain

Temperature sensor

Reset block

1 x PLL

Internal RC oscillators

Flash memory

VDD

VDDA

VDD domain

VCORE

VSS

(Exposed pad)

VDD

VCAP

ADC

VDDRF

VDDRFPA

RADIO domain

VDDHPA

2.4 GHz RADIO

STM32WBA50KG Datasheet(PDF) 19 Page - STMicroelectronics

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