BASE DEVICE
STM32WB55RG
Dual-core STM32WB wireless microcontroller.
- Application CPU
- Arm Cortex-M4 with FPU
- Maximum application clock
- 64 MHz
- Radio CPU
- Arm Cortex-M0+
STMicroelectronics / Chips & IP
STM32WB and STM32WBA
Wireless STM32 product lines shown in the official MCU portfolio.
Product lines are representative. Stock, lifecycle, package and grade must be checked against the exact MPN.
Product scopeChips & IP
Device references in this category1
Documented ordering codes4
Information checked2026-09-28
FROM FAMILY TO DEVICE
Chip models in STM32WB and STM32WBA
Documented device references
Base-device names are distinct from full ordering numbers. Each detail page identifies the product type, parameter scope and official source.
1 device reference
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WITHIN THIS PRODUCT LINE
Series & subcategories
STM32WB
STM32WB is a wireless STM32 MCU series; protocols differ across WB, WBA, and WL.
0 device refs · 0 ordering codesExplore STM32WB →STM32WB0
STM32WB0 is a wireless STM32 MCU series; protocols differ across WB, WBA, and WL.
0 device refs · 0 ordering codesExplore STM32WB0 →STM32WBA
STM32WBA is a wireless STM32 MCU series; protocols differ across WB, WBA, and WL.
0 device refs · 0 ordering codesExplore STM32WBA →STM32WL
STM32WL is a wireless STM32 MCU series; protocols differ across WB, WBA, and WL.
0 device refs · 0 ordering codesExplore STM32WL →SELECTION CONTEXT
Working with STM32WB and STM32WBA
Define the required function
Wireless STM32 product lines shown in the official MCU portfolio.
Use the requirements below to decide which specification limits your design. A family name alone is not a purchasing specification.
Check the integration boundary
Choose the complete device and ordering code before checking package pinout, power, electrical limits and operating grade. Keep family maxima separate from a selected device or package.
Open the manufacturer reference ↗ENGINEERING DECISIONS
What to confirm before selection
Use these checks to define the requirement. Family names alone do not establish performance, package compatibility or current availability.
- Check supported protocols for the exact device and stack.
- Budget antenna placement, coexistence and low-power behavior.
Move from family to full ordering number
Identify the complete manufacturer part number, package, operating grade and electrical requirements. Reviewed FPGA specifications can then be compared at device level.
Send the exact project requirement →Preparing a complete board?
Bring the BOM, schematic constraints, stack-up and assembly requirements into the project brief.
PCBA project preparation →EVIDENCE & DEVELOPMENT
Documents for this product line
Start with the device table, then check electrical limits, ordering information and the applicable tool release.
STM32WB and STM32WBA — manufacturer referenceManufacturer product documentationPrimary source ↗STM32WB55RG official product referenceProduct overview / Description / All featuresWeb ↗
More STMicroelectronics development resources
STM32 Nucleo catalogue ↗
Select a board against its MCU and expansion connections.
STM32CubeIDE ↗
Find development software and supporting documentation.
STM32CubeMX ↗
Check configuration and code-generation support.
These broader manufacturer resources do not establish support or compatibility for every device on this page.
PRACTICAL QUESTIONS
STM32WB and STM32WBA selection questions
How do I select a model within STM32WB and STM32WBA?
Start with the documented product scope: Wireless STM32 product lines shown in the official MCU portfolio. Then compare the device-specific facts below with your required resources and interfaces. Open each model for its evidence and ordering constraints.
Is a base-device name enough to place an order?
A base-device identifier identifies the silicon or model, but may omit package, speed, temperature, qualification and packing options. Use the manufacturer ordering table to establish the complete code. Reference examples do not establish stock or an approved replacement.
Can the listed devices use the same PCB or development tools?
A shared family or manufacturer does not establish pin compatibility. Compare pinout, supply and I/O-bank voltages, configuration, timing, tool support and thermal limits before changing a board.
What should I include for sourcing or PCBA review?
Provide the exact part or board revision, quantity, delivery requirement, operating environment and traceability needs. For assembly, identify BOM readiness, PCB stack-up, programming access and the inspection or functional-test scope.
PREPARE A USEFUL INQUIRY
Build your selection brief.
Select the points you want our team to review. Your selections stay in this browser until you choose to submit the quotation form.
Open quotation form →Sources & portfolio context
STMicroelectronics STM32WB and STM32WBA reference ↗
Source review: 2026-09-28. This family guide does not assert stock or compatibility between devices.
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