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STMicroelectronics STM32WB15CCU6E
- Part No.:
- STM32WB15CCU6E
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32WB15CCU6E.pdf
- Description:
- IC RF TXRX+MCU BLE 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:2,013
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Product details
Overview
STM32WB15CCU6E from STMicroelectronics is a dual-core multiprotocol wireless 32-bit MCU integrating an Arm® Cortex®-M4 with FPU (64 MHz) and a dedicated Cortex®-M0+ for Bluetooth® 5.4 radio processing. It features 320 KB flash, 48 KB SRAM, -95.5 dBm RX sensitivity, +5.5 dBm programmable TX power, and integrated balun - enabling compact, certified BLE 5.4 end-node designs for battery-powered IoT sensors and wearables.
For engineers reviewing the STM32WB15CCU6E datasheet, STM32WB15CCU6E pinout, STM32WB15CCU6E application, or STM32WB15CCU6E equivalent, key selection criteria include dual-CPU real-time radio coexistence, ultra-low-power modes (12 nA shutdown, 610 nA standby + RTC + 48 KB RAM), RF regulatory compliance (FCC/ETSI/ARIB), and hardware security accelerators (AES-256, PKA, RNG).
Technical Context
The device implements a tightly coupled dual-CPU architecture: the Cortex-M4 executes application firmware while the Cortex-M0+ handles time-critical Bluetooth LE protocol stack operations via IPCC interprocessor communication. This separation enables deterministic radio timing without CPU contention.
Its RF subsystem includes a fully integrated 2.4 GHz transceiver with programmable output power (–20 to +5.5 dBm in 1 dB steps), support for 1/2 Mbps PHY, EATT, GATT caching, and accurate RSSI measurement - all compliant with ETSI EN 300 328, FCC Part 15, and ARIB STD-T66.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | Dual-core: Arm Cortex-M4 @ 64 MHz (FPU, ART Accelerator) + Cortex-M0+ for BLE stack |
| Wireless Standard | Bluetooth 5.4 LE compliant, supporting 1 Mbps & 2 Mbps PHY, EATT, and GATT caching |
| RF Sensitivity | –95.5 dBm at 1 Mbps BLE - enables robust link budget in compact antenna layouts |
| TX Output Power | Programmable from –20 dBm to +5.5 dBm in 1 dB steps - supports range vs. power trade-off tuning |
| Power Modes | 12 nA shutdown; 610 nA standby + RTC + 48 KB RAM - extends coin-cell battery life to years |
| Memory | 320 KB flash (PCROP-protected), 48 KB SRAM (36 KB with parity) - secures OTA-updatable firmware |
| Security | Hardware AES-256, PKA (RSA/ECC/DH), TRNG, 96-bit unique ID, SFI for secure BLE stack install |
Pinout & Package
UFQFPN48 package (7 × 7 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad. Pinout optimized for RF layout integrity and low-noise analog integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_RF / VDD_PA | RF power supply | Dedicated 1.2 V supply for RF transceiver - isolates noise-sensitive analog blocks from digital switching |
| ANT / RFIO | RF differential antenna interface | Single-ended RF I/O with internal balun - eliminates external matching network for basic PCB antennas |
| HSE_IN / HSE_OUT | 32 MHz crystal oscillator inputs | Provides precise clock source for radio timing and CPU synchronization - integrated trimming capacitors reduce BOM |
| LSE_IN / LSE_OUT | 32.768 kHz RTC crystal inputs | Enables calendar-timekeeping and low-power wake-up events - critical for long-duration sensor sleep cycles |
| VBAT | Backup power supply | Retains RTC and 20× 32-bit backup registers during main power loss - supports tamper-resilient timestamping |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Balun | Eliminates external RF matching components - reduces BOM count and PCB area by ≥3 parts |
| SMPS with Bypass Mode | Embedded step-down converter improves efficiency at high load; intelligent bypass extends battery life at light loads |
| IPCC & HW Semaphores | Hardware-accelerated inter-CPU messaging and resource locking - ensures deterministic BLE stack execution |
| ULPMark™ CP Score | 318 - industry-leading energy efficiency benchmark for ultra-low-power MCU operation |
| 5 V-Tolerant I/Os | 35 of 37 GPIOs tolerate 5 V - simplifies interface to legacy peripherals and level-shifting circuitry |
Applications
| Smart Wearable Sensor | BLE Beacon Node |
|---|---|
Use Scenario: Compact wrist-worn health monitor collecting heart rate, motion, and temperature data. IC Role / Device Role / Timing Role: Dual-core MCU handles sensor fusion on M4 while M0+ manages BLE advertising/connection with sub-millisecond timing accuracy. Use Value: 610 nA standby + RTC enables multi-year battery life; integrated balun shrinks form factor below 10 cm². | Use Scenario: Indoor location beacon deployed in retail or logistics environments with fixed mounting and coin-cell power. IC Role / Device Role / Timing Role: Dedicated M0+ CPU executes BLE advertising stack independently, ensuring consistent 100 ms interval timing even under M4 interrupt load. Use Value: –95.5 dBm RX sensitivity and +5.5 dBm TX extend reliable detection range to 50+ meters in open space. |
| Industrial Wireless Sensor | Secure OTA Firmware Node |
Use Scenario: Battery-powered vibration/temperature node in predictive maintenance systems operating in harsh EMI environments. IC Role / Device Role / Timing Role: Hardware AES-256 and PKA accelerate secure sensor data encryption prior to BLE transmission; SMPS maintains stable core voltage across wide input range. Use Value: 1.71–3.6 V operation and 105 °C extended temp grade ensure reliability in unregulated industrial enclosures. | Use Scenario: Field-deployed asset tracker requiring remote firmware updates without physical access. IC Role / Device Role / Timing Role: Secure Firmware Installation (SFI) validates signed OTA images before flash programming; PCROP protects radio stack from overwrite. Use Value: 320 KB flash with sector protection enables concurrent storage of active app, update image, and BLE stack - no external memory required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-core BLE MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Nordic nRF52840 DK | Single-core ARM Cortex-M4F (64 MHz); no dedicated radio CPU - BLE stack runs on same core | Limited real-time determinism for concurrent BLE + sensor processing; higher CPU load during radio activity | Prefer when cost sensitivity outweighs need for guaranteed BLE timing isolation |
| TI CC2652R1F | Arm Cortex-M4F (48 MHz) + dedicated Sensor Controller; BLE 5.0 (not 5.4), no EATT or GATT caching | Lower RF feature set; lacks Bluetooth 5.4 enhancements like periodic advertising sync transfer | Choose when targeting legacy BLE 5.0 ecosystems or requiring TI's proprietary Sensor Controller for ultra-low-power analog sensing |
Compared with Nordic nRF52840 and TI CC2652R1F, the STM32WB15CCU6E uniquely delivers Bluetooth 5.4 compliance with hardware-isolated radio processing, enabling simultaneous high-throughput sensor fusion and deterministic BLE advertising - critical for time-sensitive industrial edge nodes.
Availability
STM32WB15CCU6E is available at Aetrix Electronics and suitable for smart wearables, BLE beacons, and industrial wireless sensors requiring stable component supply, long-term lifecycle assurance, and full regulatory certification support.
Supply support for STM32WB15CCU6E 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 automotive semiconductors since 1987.
The STM32WB series targets ultra-low-power, secure, multiprotocol wireless applications - specifically engineered to integrate BLE 5.x radio functionality with robust MCU performance and hardware security in a single chip for IoT edge devices.
FAQ
What is the maximum operating temperature for STM32WB15CCU6E?
The STM32WB15CCU6E is qualified for industrial operation up to +105 °C ambient temperature. Its extended temperature grade ensures reliable performance in enclosed industrial enclosures or outdoor deployments where passive cooling is limited. Thermal derating begins above this point per Section 7.4 of DS13258 Rev 10.
Does STM32WB15CCU6E support over-the-air (OTA) firmware updates?
Yes - it supports secure OTA updates via Bluetooth Low Energy using the built-in bootloader and PCROP-protected flash sectors. The Secure Firmware Installation (SFI) mechanism validates cryptographic signatures of incoming firmware images before programming, preventing unauthorized or corrupted updates.
Can the integrated SMPS be disabled for use with external regulators?
Yes - the embedded SMPS can be placed in intelligent bypass mode, allowing direct connection of an external 1.2 V supply to VDD_CORE. This configuration is validated for noise-sensitive analog applications or when system-level power architecture mandates centralized regulation.
Which development tools are officially supported for STM32WB15CCU6E?
ST provides full toolchain support including STM32CubeMX for initialization code generation, STM32CubeWB HAL/LL libraries, STM32CubeProgrammer for flashing, and the STM32WB5MM-DK Discovery kit. Debugging uses SWD/JTAG via ST-LINK v3, with real-time trace supported through SWV.
STM32WB15CCU6E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 48-UFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- Bluetooth
- Protocol:
- Bluetooth v5.2
- Modulation:
- GFSK
- Frequency:
- 2.4GHz
- Data Rate (Max):
- 2Mbps
- Power - Output:
- 5.5dBm
- Sensitivity:
- -95.5dBm
- Memory Size:
- 320kB Flash, 48kB SRAM
- Serial Interfaces:
- ADC, I2C, SPI, UART, USART
- GPIO:
- 37
- Voltage - Supply:
- 1.71V ~ 3.6V
- Current - Receiving:
- 4.5mA ~ 7.7mA
- Current - Transmitting:
- 5.2mA ~ 12.5mA
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-UFQFPN (7x7)
STM32WB15CCU6E FAQ
1.How can I place an order for STM32WB15CCU6E through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32WB15CCU6E 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 STM32WB15CCU6E reliable?
The price and inventory of STM32WB15CCU6E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32WB15CCU6E is usually 5 days.
3.What payment methods are accepted for STM32WB15CCU6E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32WB15CCU6E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32WB15CCU6E?
STM32WB15CCU6E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32WB15CCU6E 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 STM32WB15CCU6E?
For technical support, including STM32WB15CCU6E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32WB15CCU6E requirements.
6.How does Aetrix verify that STM32WB15CCU6E is sourced from the original manufacturer or authorized distributors?
All STM32WB15CCU6E 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 STM32WB15CCU6E meets industry standards.
7.What is the process for return or replacement of STM32WB15CCU6E?
All STM32WB15CCU6E units undergo pre-shipment inspection (PSI). If there is an issue with STM32WB15CCU6E, 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 STM32WB15CCU6E part is unused and in its original packaging.
Return procedure for STM32WB15CCU6E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32WB15CCU6E Tags
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