STM32WB55RGQ6ATR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM32WB55RGQ6ATR

Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5 and 802.15.4 radio solution

STMicroelectronics 

Electrical characteristics

STM32WB55xx STM32WB35xx

6.1.6

Power supply scheme

Figure 16. Power supply scheme (all packages except UFBGA129 and WLCSP100)

VBAT

1.55 V to 3.6 V

VDD

n x VDD

Power switch

Regulator

Backup circuitry

(LSE, RTC and

backup registers)

VCORE

n x 100 nF + 1 x 4.7 μF

GPIOs

VDDIO1

OUT

IN

Kernel logic

IO (CPU, digital

logic and memories

VDDA

10 nF + 1 μF

VSS

VDDA

VREF+(2)

100 nF + 1 μF

VREF-

VSS

ADC

COMPs

VDD

VDDSMPS

4.7 μF

L1(1)

4.7 μF

VDD

100 nF

VDD

100 nF

+ 100 pF

VLXSMPS

VFBSMPS

VSSSMPS

VDDUSB

VDDRF

VSSRF

Exposed pad

SSMMPSS

Regulator

USB

transceiver

Radio

VSS

To all modules

1. The value of L1 depends upon the frequency, as indicated in Table 6.

2. VREF+ connection is not available on UFQFPN48 package.

MS53167V3

82/193

DS11929 Rev 10

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