STM32WB50CGU6 - 2.4GHz Wireless MCU with BLE 5.0 | STMicroelectronics
MPN: STM32WB50CGU6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.32 | $4.32 |
| 10 | $3.89 | $38.90 |
| 100 | $3.46 | $346.00 |
| 500 | $3.11 | $1,555.00 |
| 1,000 | $2.77 | $2,770.00 |
Drop-in alternatives for STM32WB50CGU6 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
STM32WB55CGU6
β Drop-Inπ Reference alternative (not in catalog)
STM32WB50CGU6TR
β Drop-Inπ Reference alternative (not in catalog)
STM32WB55CEU6
β Drop-Inβ 99,999 In Stock
$4.38 / Unit
View Datasheet βnRF52840-QIAA
β‘ Same Packageπ Reference alternative (not in catalog)
STM32WB50CGU6 Maximum Ratings & Electrical Characteristics
| Core Processor | Arm Cortex-M4 (application) + Arm Cortex-M0+ (network) |
| Core Speed | 64 MHz (Cortex-M4), 32 MHz (Cortex-M0+) |
| Flash Memory | 1 Mbyte |
| SRAM | 128 Kbytes |
| Wireless Protocols | Bluetooth Low Energy 5.0, IEEE 802.15.4 (Zigbee 3.0, Thread) |
| Bluetooth Data Rate | 2 Mbps (BLE 5.0) |
| Supply Voltage | 1.71 V to 3.6 V |
| RX Current Consumption | 4.5 mA |
| TX Current Consumption | 4.5 mA at 0 dBm |
| GPIO Pins | 30 |
| ADC Resolution | 12-bit |
| Communication Interfaces | UART, SPI, I2C |
| Package | UFQFPN-48 (7x7 mm) |
| Operating Temperature | -40C to +85C |
| RoHS Status | Compliant |
STM32WB50CGU6 Pin Configuration
| Pin 1 | VDD β Power supply (1.71V-3.6V) |
| Pin 2 | PA0 β GPIO / ADC input |
| Pin 3 | PA1 β GPIO / ADC input |
| Pin 4 | PA2 β GPIO / USART2_TX |
| Pin 5 | PA3 β GPIO / USART2_RX |
| Pin 6 | VSS β Ground |
| Pin 7 | PA4 β GPIO / SPI1_NSS |
| Pin 8 | PA5 β GPIO / SPI1_SCK |
| Pin 9 | PA6 β GPIO / SPI1_MISO |
| Pin 10 | PA7 β GPIO / SPI1_MOSI |
| Pin 11 | PB0 β GPIO / ADC input |
| Pin 12 | PB1 β GPIO / ADC input |
| Pin 13 | PB2 β GPIO / BOOT1 |
| Pin 14 | PB10 β GPIO / I2C2_SCL |
| Pin 15 | PB11 β GPIO / I2C2_SDA |
| Pin 16 | VDD β Power supply |
| Pin 17 | PB12 β GPIO / SPI2_NSS |
| Pin 18 | PB13 β GPIO / SPI2_SCK |
| Pin 19 | PB14 β GPIO / SPI2_MISO |
| Pin 20 | PB15 β GPIO / SPI2_MOSI |
| Pin 21 | VSS β Ground |
| Pin 22 | PC13 β GPIO / RTC_TAMP1 |
| Pin 23 | PC14 β GPIO / OSC32_IN |
| Pin 24 | PC15 β GPIO / OSC32_OUT |
| Pin 25 | PH0 β OSC_IN (32 MHz crystal) |
| Pin 26 | PH1 β OSC_OUT (32 MHz crystal) |
| Pin 27 | NRST β Reset (active low) |
| Pin 28 | VDD β Power supply |
| Pin 29 | PA8 β GPIO / TIM1_CH1 |
| Pin 30 | PA9 β GPIO / USART1_TX |
| Pin 31 | PA10 β GPIO / USART1_RX |
| Pin 32 | PA11 β GPIO / USB_DM (not available on WB50) |
| Pin 33 | PA12 β GPIO / USB_DP (not available on WB50) |
| Pin 34 | PA13 β SWDIO (debug) |
| Pin 35 | PA14 β SWCLK (debug) |
| Pin 36 | PA15 β GPIO / JTDI |
| Pin 37 | PB3 β GPIO / JTDO |
| Pin 38 | PB4 β GPIO / NJTRST |
| Pin 39 | PB5 β GPIO / I2C1_SMBA |
| Pin 40 | PB6 β GPIO / I2C1_SCL |
| Pin 41 | PB7 β GPIO / I2C1_SDA |
| Pin 42 | VDD β Power supply |
| Pin 43 | PB8 β GPIO / I2C1_SCL (alt) |
| Pin 44 | PB9 β GPIO / I2C1_SDA (alt) |
| Pin 45 | VSS β Ground |
| Pin 46 | RF β RF input/output (antenna) |
| Pin 47 | VDD_RF β RF power supply (decouple with 100nF) |
| Pin 48 | VSS_RF β RF ground |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
STM32WB50CGU6 is suitable for 6 applications: Smart Home Devices, Industrial Wireless Sensors, Healthcare Wearables, Asset Tracking, Smart Agriculture, Beacon and Proximity Solutions.
Smart Home Devices
The STM32WB50CGU6 is ideal for smart home devices such as smart locks, lighting controls, and environmental sensors. Its dual-core architecture allows the Cortex-M0+ to handle BLE and Zigbee protocol stacks, while the Cortex-M4 runs application logic. The low power consumption (4.5 mA RX/TX) extends battery life in battery-powered sensors. The integrated balun simplifies antenna design, reducing BOM cost. With support for Zigbee 3.0 and Thread, it can participate in mesh networks, enabling reliable communication across a home. The 1 Mbyte flash provides ample space for Over-The-Air (OTA) firmware updates, ensuring devices can be updated remotely. The wide supply voltage range (1.71V-3.6V) accommodates various battery configurations, from coin cells to 2xAA batteries.
Recommended
Industrial Wireless Sensors
In industrial settings, the STM32WB50CGU6 enables wireless condition monitoring and predictive maintenance. Its support for IEEE 802.15.4 (Zigbee/Thread) allows robust mesh networking in harsh RF environments. The device's -40C to +85C operating temperature range suits industrial enclosures. The hardware cryptographic acceleration (AES, RSA, ECC) secures data transmission, protecting sensitive industrial data. The 12-bit ADC and multiple timers facilitate sensor interfacing and precise data acquisition. The dual-core design ensures real-time responsiveness for control loops while maintaining wireless connectivity. The low power consumption enables battery-powered sensors that can operate for years, reducing maintenance costs. The UFQFPN-48 package's exposed pad aids thermal dissipation in sealed enclosures.
Recommended
Healthcare Wearables
The STM32WB50CGU6 is well-suited for healthcare wearables like fitness trackers and heart rate monitors. Its BLE 5.0 support enables efficient data transfer to smartphones, with a 2 Mbps data rate for quick synchronization. The low power consumption (4.5 mA RX/TX) and multiple low-power modes (Stop, Standby) extend battery life, critical for wearable devices. The small UFQFPN-48 package (7x7 mm) fits compact PCB designs. The integrated balun reduces external components, saving space. The device's security features (AES, RSA, ECC) protect patient data, complying with healthcare regulations. The Cortex-M4 core can run complex algorithms for heart rate variability analysis, while the Cortex-M0+ handles BLE communication, ensuring smooth operation.
Recommended
Asset Tracking
The STM32WB50CGU6 enables real-time asset tracking in logistics and supply chain management. Its BLE 5.0 and Zigbee support allow integration into existing tracking infrastructure. The device's low power consumption is crucial for battery-powered tags that need to operate for months. The 1 Mbyte flash can store tracking data locally when connectivity is lost, ensuring data integrity. The wide supply voltage range (1.71V-3.6V) supports various battery types, including coin cells. The device's small package and minimal external components (integrated balun) reduce tag size and cost. The dual-core architecture allows the Cortex-M0+ to handle beacon advertising while the Cortex-M4 processes sensor data, optimizing power efficiency.
Recommended
Smart Agriculture
In smart agriculture, the STM32WB50CGU6 supports wireless sensor networks for soil monitoring, irrigation control, and crop health tracking. Its IEEE 802.15.4 support enables long-range mesh networking across fields, while BLE 5.0 allows direct smartphone access for local configuration. The device's low power consumption is essential for solar-powered or battery-operated nodes. The -40C to +85C temperature range withstands outdoor conditions. The 12-bit ADC interfaces with various analog sensors (soil moisture, temperature). The hardware security features protect against unauthorized access to agricultural data. The dual-core design allows the Cortex-M0+ to manage the radio protocol, while the Cortex-M4 runs sensor fusion algorithms, improving data accuracy.
Recommended
Beacon and Proximity Solutions
The STM32WB50CGU6 is ideal for BLE beacons used in retail, museums, and indoor navigation. Its BLE 5.0 support enables advertising with extended range and data payloads. The low power consumption (4.5 mA TX) allows beacon operation for years on a coin cell battery. The device's small package and integrated balun minimize PCB size, enabling compact beacon designs. The Cortex-M0+ can handle advertising intervals efficiently, while the Cortex-M4 can process sensor data for context-aware advertising. The device supports multiple advertising sets, allowing a single beacon to broadcast different information. The security features prevent unauthorized beacon spoofing, ensuring reliable proximity services.
Recommended
Recommended Products Summary
Engineering reference data for STM32WB50CGU6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32WB55CGU6 | STM32WB50CGU6TR | STM32WB55CEU6 | nRF52840-QIAA |
|---|---|---|---|---|---|
| Package | UFQFPN-48 (7x7 mm) | UFQFPN-48 (7x7 mm) - same | UFQFPN-48 (7x7 mm) - same | UFQFPN-48 (7x7 mm) - same | QFN-48 (7x7 mm) - similar but different pinout |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Nordic Semiconductor |
| Core | Cortex-M4 + Cortex-M0+ | Cortex-M4 + Cortex-M0+ | Cortex-M4 + Cortex-M0+ | Cortex-M4 + Cortex-M0+ | Cortex-M4F |
| Flash Memory | 1 Mbyte | 1 Mbyte | 1 Mbyte | 2 Mbyte | 1 Mbyte |
| SRAM | 128 Kbytes | 128 Kbytes | 128 Kbytes | 256 Kbytes | 256 Kbytes |
| Wireless Protocols | BLE 5.0, IEEE 802.15.4 | BLE 5.0, IEEE 802.15.4, USB | BLE 5.0, IEEE 802.15.4 | BLE 5.0, IEEE 802.15.4, USB | BLE 5.0, IEEE 802.15.4, ANT, proprietary |
| USB Support | No | Yes | No | Yes | Yes |
| Supply Voltage | 1.71V - 3.6V | 1.71V - 3.6V | 1.71V - 3.6V | 1.71V - 3.6V | 1.7V - 5.5V |
Key Differentiators
- Dual-core architecture with dedicated network processor (vs nRF52840-QIAA)
- Integrated balun reduces BOM cost (vs nRF52840-QIAA)
- Cost-optimized variant without USB (vs STM32WB55CGU6)
Design Notes
For optimal RF performance, place the antenna on the edge of the PCB with a 50-ohm impedance-controlled trace. Keep the RF trace short and away from digital signals. Use a ground plane beneath the RF section and add a matching network as recommended in the STM32WB application note AN5165. The integrated balun simplifies matching, but a pi-network may be needed for tuning.
Decouple each VDD pin with a 100 nF ceramic capacitor placed as close as possible to the pin. Additionally, add a 4.7 uF bulk capacitor on the main supply. For the VDD_RF pin, use a dedicated 100 nF capacitor and a ferrite bead to isolate RF noise. Ensure the supply voltage is within 1.71V-3.6V and stable during RF transmission, as current spikes can cause voltage drops.
The UFQFPN-48 package has an exposed pad that must be soldered to a thermal via array on the PCB to dissipate heat. Although the STM32WB50CGU6 typically consumes low power, ensure the thermal pad is connected to a ground plane with adequate copper area. For high-duty-cycle RF transmission, monitor the junction temperature to stay within the -40C to +85C operating range.
Compliance Information
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified; for automotive, consider STM32WB55CGU6 with extended temperature range.
