STM32WBA55RGV6 - 100MHz Cortex-M33 BLE 5.4 MCU | STMicroelectronics
MPN: STM32WBA55RGV6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.5 | $5.50 |
| 10 | $4.95 | $49.50 |
| 100 | $4.4 | $440.00 |
| 500 | $3.96 | $1,980.00 |
| 1,000 | $3.52 | $3,520.00 |
Drop-in alternatives for STM32WBA55RGV6 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:
STM32WBA55RGV6TR
β Drop-Inπ Reference alternative (not in catalog)
STM32WBA55RGV7
β Drop-Inπ Reference alternative (not in catalog)
STM32WBA55RGV8
β Drop-Inπ Reference alternative (not in catalog)
STM32WB55RGV6
β Drop-Inπ Reference alternative (not in catalog)
STM32WB55RGV7
β Drop-Inπ Reference alternative (not in catalog)
STM32WBA55RGV6 Maximum Ratings & Electrical Characteristics
| Core | Arm Cortex-M33 with FPU |
| Maximum Clock Frequency | 100 MHz |
| Flash Memory | 512 KB |
| SRAM | 128 KB |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Radio Protocols | Bluetooth Low Energy 5.4, Zigbee, Thread, proprietary |
| Radio Frequency Range | 2.405 GHz to 2.48 GHz |
| BLE Sensitivity | -96 dBm |
| Package | 28-pin VFQFPN (VG) 4x4 mm |
| Mounting Type | Surface Mount |
| Operating Temperature Range | [DATA_NEEDED: Operating Temperature Range] |
| Security Features | TrustZone, secure boot, AES, RSA, ECC |
| Low Power Modes | Sleep, Stop, Standby |
| Peripherals | UART, SPI, I2C, ADC, timers, GPIO |
| RoHS Status | Compliant |
STM32WBA55RGV6 Pin Configuration
| Pin 1 | VDD β Power supply |
| Pin 2 | VSS β Ground |
| Pin 3 | PA0 β GPIO / ADC input |
| Pin 4 | PA1 β GPIO / ADC input |
| Pin 5 | PA2 β GPIO / USART2_TX |
| Pin 6 | PA3 β GPIO / USART2_RX |
| 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 | PB3 β GPIO / SWO |
| Pin 15 | PB4 β GPIO / NJTRST |
| Pin 16 | PB5 β GPIO / I2C1_SMBA |
| Pin 17 | PB6 β GPIO / I2C1_SCL |
| Pin 18 | PB7 β GPIO / I2C1_SDA |
| Pin 19 | PB8 β GPIO / I2C1_SCL |
| Pin 20 | PB9 β GPIO / I2C1_SDA |
| Pin 21 | NRST β Reset |
| Pin 22 | VDDA β Analog power supply |
| Pin 23 | VSSA β Analog ground |
| Pin 24 | PC14 β GPIO / OSC32_IN |
| Pin 25 | PC15 β GPIO / OSC32_OUT |
| Pin 26 | PH0 β OSC_IN |
| Pin 27 | PH1 β OSC_OUT |
| Pin 28 | VBAT β Battery backup |
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
STM32WBA55RGV6 is suitable for 6 applications: Smart Home Automation, Wearable Health Monitors, Industrial Wireless Sensor Networks, Asset Tracking, Smart Agriculture, Medical Devices.
Smart Home Automation
The STM32WBA55RGV6 is ideal for smart home devices such as smart locks, sensors, and lighting controls. Its support for BLE 5.4, Zigbee, and Thread enables seamless integration with popular smart home ecosystems like Apple HomeKit, Google Home, and Amazon Alexa. The low power consumption allows battery-operated devices to run for years, while the security features protect against unauthorized access. In a typical smart lock application, the MCU manages the motor driver, reads the keypad, and communicates with the hub via BLE. The 512 KB flash provides ample space for the application stack and over-the-air updates. The device's -96 dBm BLE sensitivity ensures reliable communication even in challenging RF environments. Compared to using separate MCU and radio chips, the integrated solution reduces BOM cost and PCB area, making it a cost-effective choice for high-volume smart home products.
Recommended
Wearable Health Monitors
The STM32WBA55RGV6 is well-suited for wearable health monitors such as fitness trackers, heart rate monitors, and smartwatches. Its compact 4x4 mm package and low power consumption make it ideal for space-constrained, battery-powered devices. The device supports BLE 5.4, enabling efficient data transmission to smartphones or cloud platforms. The Arm Cortex-M33 core with FPU can handle sensor data processing and algorithms locally, reducing the need for frequent wireless transmissions. The security features, including TrustZone and hardware encryption, protect sensitive health data. In a typical heart rate monitor, the MCU reads data from an optical sensor, processes it, and sends the results to a smartphone app via BLE. The device's low-power modes extend battery life, allowing continuous monitoring for days or weeks. The 512 KB flash memory is sufficient for storing firmware and health logs. Compared to using a separate MCU and BLE chip, the integrated solution simplifies design and reduces power consumption, making it a preferred choice for wearable manufacturers.
Recommended
Industrial Wireless Sensor Networks
The STM32WBA55RGV6 is designed for industrial wireless sensor networks, where reliability, security, and low power are critical. It supports Thread and Zigbee, which are widely used in industrial mesh networks, enabling robust communication in harsh environments. The device's wide supply voltage range (1.71V to 3.6V) allows it to be powered from industrial power rails or batteries. The Arm Cortex-M33 core with TrustZone provides secure communication and protects against cyber threats. In a typical industrial sensor node, the MCU reads data from sensors (e.g., temperature, pressure), processes it, and transmits it to a gateway via Thread or Zigbee. The device's low-power modes enable battery-powered nodes to operate for years. The 512 KB flash memory is sufficient for complex mesh networking stacks and application logic. The -96 dBm BLE sensitivity also allows for BLE-based commissioning and maintenance. Compared to wired solutions, the wireless approach reduces installation costs and enables flexible deployment. The integrated security features make it suitable for critical infrastructure monitoring.
Recommended
Asset Tracking
The STM32WBA55RGV6 is an excellent choice for asset tracking devices, such as GPS trackers for logistics, vehicles, and valuable equipment. Its low power consumption and support for BLE 5.4 enable long battery life and efficient communication with smartphones or gateways. The device's compact package allows for small form factor trackers. The Arm Cortex-M33 core can handle GPS data processing and location algorithms. The security features protect against unauthorized tracking and data tampering. In a typical asset tracker, the MCU receives location data from a GPS module, processes it, and transmits it via BLE to a mobile app or via Thread/Zigbee to a local gateway. The device's low-power modes allow the tracker to operate for months on a single battery. The 512 KB flash memory is sufficient for storing location logs and firmware updates. The -96 dBm BLE sensitivity ensures reliable communication even in urban environments with high RF interference. Compared to using separate MCU and radio chips, the integrated solution reduces power consumption and PCB area, making it ideal for compact trackers.
Recommended
Smart Agriculture
The STM32WBA55RGV6 is suitable for smart agriculture applications, such as soil monitoring, irrigation control, and livestock tracking. Its support for LoRaWAN (via external radio) and BLE 5.4 enables long-range and short-range communication. The device's low power consumption is essential for battery-powered sensors deployed in the field. The Arm Cortex-M33 core can process sensor data and make decisions locally, reducing the need for constant communication. The security features protect against unauthorized access to agricultural data. In a typical soil monitoring node, the MCU reads soil moisture and temperature sensors, processes the data, and transmits it to a central hub via BLE or LoRaWAN. The device's low-power modes allow the node to operate for months on a single battery. The 512 KB flash memory is sufficient for storing sensor data and firmware. The wide supply voltage range allows the device to be powered by solar panels or batteries. Compared to wired solutions, the wireless approach enables easy deployment in remote fields. The integrated security features ensure data integrity and privacy.
Recommended
Medical Devices
The STM32WBA55RGV6 is designed for medical devices such as glucose monitors, insulin pumps, and patient monitoring systems. Its security features, including TrustZone and hardware encryption, are critical for protecting patient data and ensuring device integrity. The device's low power consumption is essential for implantable or wearable medical devices. The Arm Cortex-M33 core with FPU can handle complex signal processing algorithms. The support for BLE 5.4 enables secure wireless communication with smartphones or medical gateways. In a typical glucose monitor, the MCU reads data from a glucose sensor, processes it, and transmits it to a smartphone app via BLE. The device's low-power modes extend battery life, allowing continuous monitoring. The 512 KB flash memory is sufficient for storing medical algorithms and patient data. The wide supply voltage range allows the device to be powered by small batteries. Compared to using separate MCU and radio chips, the integrated solution reduces size and power consumption, making it ideal for compact medical devices. The security features ensure compliance with medical data protection regulations.
Recommended
Recommended Products Summary
Engineering reference data for STM32WBA55RGV6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32WBA55RGV6TR | STM32WBA55RGV7 | STM32WBA55RGV8 | STM32WB55RGV6 |
|---|---|---|---|---|---|
| Package | 28-pin VFQFPN (VG) | 28-pin VFQFPN (VG) - same | 28-pin VFQFPN (VG) - same | 28-pin VFQFPN (VG) - same | 28-pin VFQFPN (VG) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | Arm Cortex-M33 | Arm Cortex-M33 | Arm Cortex-M33 | Arm Cortex-M33 | Arm Cortex-M4 |
| Max Clock Frequency | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 64 MHz |
| Flash Memory | 512 KB | 512 KB | 1 MB | 512 KB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 256 KB | 128 KB |
| BLE Version | 5.4 | 5.4 | 5.4 | 5.4 | 5.3 |
| Security | TrustZone, AES, RSA, ECC | TrustZone, AES, RSA, ECC | TrustZone, AES, RSA, ECC | TrustZone, AES, RSA, ECC | AES, RSA, ECC (no TrustZone) |
Key Differentiators
- Arm Cortex-M33 core with TrustZone (vs STM32WB55RGV6)
- BLE 5.4 support (vs STM32WB55RGV6)
- Higher clock frequency (vs STM32WB55RGV6)
Design Notes
For optimal radio performance, match the antenna impedance to 50 ohms and place it away from the MCU and other components. Use a ground plane under the antenna and ensure proper decoupling of the RF supply pins. Refer to the STM32WBA5xxx application notes for antenna design guidelines.
Decouple all supply pins with 100 nF capacitors placed as close as possible to the pins. Add a 4.7 uF bulk capacitor on the main supply. For battery-powered designs, use the low-power modes (Sleep, Stop, Standby) to extend battery life. Ensure the supply voltage stays within 1.71V to 3.6V.
Use a 32 MHz crystal for the radio and a 32.768 kHz crystal for low-power timing. Place the crystals close to the MCU and keep traces short. Ensure a clean ground plane and avoid routing high-speed signals near the crystal. Follow the layout guidelines in the STM32WBA5xxx datasheet.
Compliance Information
RoHS compliant per STMicroelectronics product page. Other compliance data not specified in the provided data.
