STM32WB55VGY7 STMicroelectronics Integrated Circuit (BGA) In Stock
STM32WB55VGY7 is a dual-core wireless microcontroller from STMicroelectronics combining an Arm Cortex-M4 application core at 64 MHz with an Arm Cortex-M0+ radio core supporting Bluetooth 5.2, Zigbee, and Thread in the 2.4 GHz band. It integrates 1 MB Flash and 256 KB SRAM in a 100-ball WLCSP package for compact IoT designs.
- Manufacturer
- STMicroelectronics
- Package
- BGA
- Pin Count
- 100
- Lifecycle
- ACTIVE
- Datasheet
- STM32WB55VGY7 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STM32WB55VGY7?
- Dual-core architecture: Arm Cortex-M4 at 64 MHz for application code and Cortex-M0+ for Bluetooth 5.2, Zigbee, and Thread radio stack management
- 1 MB Flash and 256 KB SRAM with AES-256 hardware encryption and a true random number generator for secure IoT designs
- Ultra-compact 100-ball WLCSP package enables miniaturized wearable and smart-home product designs operating from 1.71 V to 3.6 V
What is STM32WB55VGY7 used for?
The STM32WB55VGY7 is designed for connected IoT products such as smart-home sensors, wearable health monitors, and industrial wireless nodes that require simultaneous Bluetooth 5.2 and Zigbee/Thread connectivity. Its dual-core design allows the application processor to run sensor fusion and UI tasks at 64 MHz while the radio core independently manages protocol stacks, reducing latency and power overhead. Mesh-networking gateways and Matter-compatible accessories benefit from its hardware AES-256 encryption and 2.4 GHz multi-protocol support.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the STM32WB55VGY7 datasheet?
STM32WB55VGY7 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STM32WB55VGY7?
Compatible alternatives and drop-in replacements for STM32WB55VGY7:
Frequently Asked Questions
How does the dual-core architecture of STM32WB55VGY7 benefit a Bluetooth 5.2 IoT sensor design?
The STM32WB55VGY7 uses an Arm Cortex-M4 at 64 MHz for application tasks and a dedicated Cortex-M0+ core that manages the Bluetooth 5.2 radio stack independently. This separation ensures radio stack latency stays deterministic regardless of application CPU load, and the 256 KB SRAM shared between cores allows efficient data exchange without stalling either processor in a connected sensor design.
Which wireless protocols does STM32WB55VGY7 support simultaneously, and in what frequency band?
The STM32WB55VGY7 supports Bluetooth 5.2, Zigbee (IEEE 802.15.4), and Thread concurrently in the 2.405 GHz to 2.48 GHz band. This multi-protocol capability allows a single chip to serve as a Zigbee coordinator and BLE peripheral at the same time, which is essential for Matter-compatible smart-home hubs requiring interoperability with multiple device ecosystems.
For a compact wearable design, how does the WLCSP package of STM32WB55VGY7 compare to a standard BGA alternative?
The STM32WB55VGY7 WLCSP package measures approximately 4.4 mm × 4.1 mm with 100 balls on a 0.4 mm pitch, significantly smaller than equivalent BGA packages, enabling wristband-style wearables and coin-sized sensor patches. The 1.71 V to 3.6 V supply range also suits single-cell coin-cell or small LiPo batteries commonly found in wearable applications.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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