STM32WB09XE datasheet(68/73 Pages) STMICROELECTRONICS

68 / 73 page

Contents

Introduction .......................................................................4

Description ........................................................................5

Functional overview ...............................................................7

3.1

Arm® Cortex®–M0+ core with MPU ............................................... 7

3.2

System architecture ............................................................ 7

3.3

Memory protection unit (MPU).................................................... 8

3.4

Memories ..................................................................... 8

3.4.1

Embedded flash memory .................................................. 8

3.4.2

Embedded SRAM ........................................................ 9

3.4.3

Embedded ROM ......................................................... 9

3.4.4

Embedded OTP ......................................................... 9

3.5

Security and safety ............................................................. 9

3.6

Boot modes ................................................................... 9

3.7

RF subsystem ................................................................ 10

3.7.1

RF front-end block diagram................................................ 10

3.7.2

IPDs for STM32WB09xE.................................................. 11

3.8

Power supply management ..................................................... 11

3.8.1

SMPS step-down regulator ................................................ 11

3.8.2

Power supply schemes ................................................... 12

3.8.3

Linear voltage regulators.................................................. 12

3.8.4

Power supply supervisor .................................................. 13

3.9

Reset management............................................................ 14

3.10

Operating modes.............................................................. 14

3.10.1

Run mode ............................................................. 15

3.10.2

Deepstop mode......................................................... 15

3.10.3

Shutdown mode ........................................................ 16

3.11

Clock management ............................................................ 16

3.12

General purpose inputs/outputs (GPIO) .......................................... 18

3.13

Direct memory access (DMA) ................................................... 18

3.14

Nested vectored interrupt controller (NVIC) ........................................ 18

3.15

Analog digital converter (ADC) .................................................. 19

3.15.1

Temperature sensor ..................................................... 19

3.16

True random number generator (TRNG) .......................................... 19

3.17

Timers and watchdog .......................................................... 19

3.17.1

General-purpose timers (TIM2, TIM16, TIM17) ................................. 19

STM32WB09xE

Contents

DS14210 - Rev 6

page 68/73

STM32WB09XE Datasheet(PDF) 68 Page - STMicroelectronics

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