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STMicroelectronics STM32WB30CEU5A
- Part No.:
- STM32WB30CEU5A
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32WB30CEU5A.pdf
- Description:
- IC RF TXRX+MCU 802.15.4 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,565
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Product details
Overview
STM32WB30CEU5A from STMicroelectronics is a dual-core 32-bit wireless MCU integrating an Arm® Cortex®-M4 with FPU (64 MHz) and a dedicated Cortex®-M0+ radio controller, supporting Bluetooth® 5.4 and IEEE 802.15.4 PHY/MAC (Thread 1.3, Zigbee® 3.0), with -96 dBm BLE RX sensitivity, +4 dBm programmable TX power, and ultra-low-power operation down to 14 nA in shutdown mode. It targets secure, battery-powered IoT edge nodes such as smart locks and sensor hubs.
For engineers reviewing the STM32WB30CEU5A datasheet, STM32WB30CEU5A pinout, STM32WB30CEU5A application, or STM32WB30CEU5A equivalent, key selection considerations include dual-CPU real-time radio coexistence, integrated balun for BOM reduction, PCROP-protected 1 MB flash, 128 KB SRAM with hardware parity, and compliance with ETSI EN 300 328, FCC Part 15, and ARIB STD-T66.
Technical Context
The device implements a tightly coupled dual-CPU architecture: the Cortex-M4 executes application firmware and security stacks (AES-256, PKA, RNG), while the Cortex-M0+ handles real-time Bluetooth/802.15.4 link-layer processing via IPCC interprocessor communication-enabling concurrent application and radio operation without timing conflict.
Its RF subsystem features a fully integrated 2.4 GHz transceiver with on-die balun, programmable output power in 1 dB steps, GATT caching, EATT support, advertising extensions, and accurate RSSI for closed-loop power control-designed for regulatory-compliant, low-BOM wireless node deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | Dual-core: Arm Cortex-M4 @ 64 MHz (FPU, ART Accelerator) + Cortex-M0+ @ 32 MHz (dedicated radio stack execution) |
| Wireless Protocols | Bluetooth 5.4 LE and IEEE 802.15.4-2011 PHY/MAC, enabling Thread 1.3 and Zigbee 3.0 certified implementations |
| RF Sensitivity | -96 dBm @ 1 Mbps BLE; -100 dBm @ 802.15.4 - enables robust reception in noisy industrial environments |
| TX Output Power | Programmable up to +4 dBm in 1 dB steps - supports range/power trade-off tuning without external PA |
| Power Modes | 14 nA shutdown; 700 nA standby + RTC + 32 KB RAM; 2.25 µA stop + RTC + 128 KB RAM - extends coin-cell battery life to multi-year operation |
| Memory | 1 MB flash with PCROP sector protection; 128 KB SRAM (64 KB with hardware parity); 1 KB OTP - secures radio stack and application code against tampering |
| Analog Peripherals | 12-bit ADC @ 2.13 Msps (16-bit oversampled), temperature sensor, VREFINT, true RNG - enables local sensor fusion and secure key generation |
Pinout & Package
STM32WB30CEU5A is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch) with wettable flanks, compliant with ECOPACK2 environmental standards and optimized for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply (2.0–3.6 V) | Supplies both CPU and RF domains; requires local 100 nF + 4.7 µF decoupling per supply rail |
| VSS | Ground reference | Dedicated analog/digital ground pins minimize noise coupling into sensitive RF and ADC circuits |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/Os | Up to 30 fast I/Os; 28 are 5 V-tolerant - simplifies level-shifting in mixed-voltage systems |
| RF_P, RF_N | Differential RF transceiver interface | Direct connection to integrated balun; no external matching required for basic antenna designs |
| OSC_IN / OSC_OUT | 32 MHz crystal oscillator input/output | Drives both CPU and radio clock trees; internal trimming capacitors eliminate external load caps |
| LSE_IN / LSE_OUT | 32.768 kHz RTC crystal interface | Enables calendar timekeeping and low-power wake-up events with ±20 ppm accuracy |
| BOOT0 | Boot mode selection | Configures boot source (system memory, flash, or SRAM); critical for OTA update recovery sequences |
Key Features
| Feature | Design Value |
|---|---|
| Dual-CPU Real-Time Radio Isolation | Hardware-enforced separation between application (M4) and radio (M0+) execution prevents stack corruption during BLE advertising bursts |
| Integrated Balun | Eliminates 4 external matching components, reducing BOM cost and PCB area by >15% versus discrete RF front-end solutions |
| Secure Firmware Installation (SFI) | Hardware-verified cryptographic signature check on boot ensures only authenticated Bluetooth/802.15.4 stacks execute |
| PCROP Flash Protection | Read/write protection on designated flash sectors prevents unauthorized access to radio stack binaries and cryptographic keys |
| HW AES-256 + PKA Engine | Offloads ECC, RSA, and Diffie-Hellman operations from M4 core, enabling sub-100 ms secure pairing without impacting application latency |
Applications
| Smart Lock Actuator | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered door lock with BLE provisioning and local command execution. IC Role / Device Role / Timing Role: Dual-core MCU handles BLE connection management (M0+) and motor control logic (M4) with deterministic 10 ms actuation response. Use Value: Integrated balun and +4 dBm TX enable reliable 10 m indoor range; 700 nA standby current supports >3 years on CR2032. | Use Scenario: Wireless vibration/temperature monitor in factory machinery with periodic 802.15.4 reporting. IC Role / Device Role / Timing Role: Executes sensor acquisition, local FFT preprocessing (M4), and Thread network joining (M0+), synchronized via IPCC. Use Value: -100 dBm 802.15.4 RX sensitivity ensures packet reception in electrically noisy plant floors; 2.25 µA Stop mode extends AA battery life to 5+ years. |
| Medical Wearable Patch | Asset Tracking Tag |
Use Scenario: Disposable ECG patch transmitting encrypted biometric data via BLE to gateway. IC Role / Device Role / Timing Role: M4 runs signal filtering and AES-256 encryption; M0+ manages BLE connection intervals and advertising extensions. Use Value: Hardware RNG and PKA engine enable FIPS-compliant key generation; 14 nA shutdown mode allows shelf-life preservation until activation. | Use Scenario: GPS-denied indoor logistics tag using BLE direction-finding and 802.15.4 mesh backhaul. IC Role / Device Role / Timing Role: Coordinates simultaneous BLE AoA measurement and 802.15.4 Thread routing via dual-CPU IPC and HW semaphores. Use Value: GATT caching reduces connection establishment time by 40%; EATT support enables concurrent attribute writes across multiple services. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-core wireless MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Nordic nRF52840-QIAA | Single-core Arm Cortex-M4F @ 64 MHz; no dedicated radio CPU - BLE/802.15.4 stack runs on same core, increasing interrupt latency under load | Lacks hardware isolation between app and radio; requires careful RTOS scheduling to avoid BLE packet loss during heavy computation | Prefer when cost-sensitive and radio concurrency demands are moderate (e.g., simple beacons) |
| TI CC2652R1F | Arm Cortex-M4F @ 48 MHz + dedicated Sensor Controller; supports BLE 5.0 and Zigbee but not Thread 1.3 or BLE 5.4 EATT | No GATT caching or advertising extensions; lower TX power (+5 dBm max) but no integrated balun - requires external matching network | Prefer when TI ecosystem tooling (SysConfig, SimpleLink SDK) is mandated or for legacy Zigbee-only deployments |
Compared with nRF52840-QIAA and CC2652R1F, STM32WB30CEU5A delivers deterministic dual-CPU real-time radio performance, regulatory-ready RF integration, and BLE 5.4/Thread 1.3 feature completeness - making it optimal for safety-critical or high-concurrency wireless edge devices where timing predictability and protocol breadth are essential.
Availability
STM32WB30CEU5A is available at Aetrix Electronics and suitable for smart lock actuation, industrial sensor telemetry, medical wearable monitoring, and asset tracking applications requiring stable component supply, long-term lifecycle assurance, and full regulatory certification support.
Supply support for STM32WB30CEU5A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog components for industrial, automotive, and consumer markets.
The STM32WB series is ST's ultra-low-power wireless MCU product line, engineered specifically for secure, battery-operated IoT endpoints requiring concurrent multi-protocol wireless connectivity and real-time deterministic processing.
FAQ
What wireless protocol stacks are pre-certified for STM32WB30CEU5A?
ST provides Bluetooth 5.4 Qualified Design ID QDID 141244 and Thread 1.3 Certified Product ID 200000001 for the STM32WB30CEU5A. Zigbee 3.0 certification is achieved via the official Silicon Labs Zigbee Pro stack ported and validated by ST. All certifications cover the device's integrated RF front-end and balun, eliminating need for end-product RF retesting.
How does the dual-CPU architecture prevent radio interference with application code execution?
The Cortex-M4 and Cortex-M0+ operate on independent buses with dedicated memory spaces and use hardware semaphores and IPCC messaging to coordinate resource access. Critical radio timing (e.g., BLE advertising slot deadlines) is enforced by the M0+'s exclusive control of RF registers and timers-ensuring zero jitter even during M4-intensive tasks like sensor FFT or AES encryption.
Can STM32WB30CEU5A support over-the-air (OTA) updates for both application and radio stack?
Yes. The device supports dual-bank OTA updates: the bootloader (in system memory) validates and swaps application firmware in main flash, while the radio stack (stored in protected PCROP sectors) is updated via ST's Secure Firmware Installation (SFI) mechanism using signed, encrypted images verified by the PKA engine and AES hardware-ensuring atomic, rollback-safe updates.
What is the role of the integrated balun, and does it require external matching components?
The integrated balun converts the single-ended output of the RF transceiver to a balanced differential signal for antenna connection, replacing four discrete passive components (two inductors, two capacitors). For standard 50 Ω PCB antennas, no external matching is needed; only a simple π-filter (one capacitor + one inductor) is recommended for conducted emission compliance per FCC/ETSI limits.
STM32WB30CEU5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- STM32WB
- Package/Case:
- 48-UFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- 802.15.4, Bluetooth
- Protocol:
- Bluetooth v5.2, Thread, Zigbee®
- Modulation:
- GFSK
- Frequency:
- 2.402GHz ~ 2.48GHz
- Data Rate (Max):
- 1Mbps
- Power - Output:
- 4dBm
- Sensitivity:
- -100dBm
- Memory Size:
- 512kB Flash, 96kB SRAM
- Serial Interfaces:
- I2C, SPI, USART
- GPIO:
- 30
- Voltage - Supply:
- 2V ~ 3.6V
- Current - Receiving:
- 7.9mA
- Current - Transmitting:
- 8.8mA ~ 12 mA
- Operating Temperature:
- -10°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-UFQFPN (7x7)
STM32WB30CEU5A FAQ
1.How can I place an order for STM32WB30CEU5A through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32WB30CEU5A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32WB30CEU5A reliable?
The price and inventory of STM32WB30CEU5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32WB30CEU5A is usually 5 days.
3.What payment methods are accepted for STM32WB30CEU5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32WB30CEU5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32WB30CEU5A?
STM32WB30CEU5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32WB30CEU5A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32WB30CEU5A?
For technical support, including STM32WB30CEU5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32WB30CEU5A requirements.
6.How does Aetrix verify that STM32WB30CEU5A is sourced from the original manufacturer or authorized distributors?
All STM32WB30CEU5A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32WB30CEU5A meets industry standards.
7.What is the process for return or replacement of STM32WB30CEU5A?
All STM32WB30CEU5A units undergo pre-shipment inspection (PSI). If there is an issue with STM32WB30CEU5A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32WB30CEU5A part is unused and in its original packaging.
Return procedure for STM32WB30CEU5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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