Geneva, March 23, 2023 - The new STM32 Bluetooth(R) wireless module from STMicroelectronics lets designers access the advantages of ST's dual-core STM32WB microcontrollers (MCUs), especially in projects intended for low-to-medium production volumes.

The module simplifies development and accelerates time to market, combining Bluetooth Low Energy 5.3 certification and worldwide radio-equipment approvals with the STM32Cube ecosystem support.

The all-in-one STM32WB1MMC module alleviates supply-chain headaches and lead-time issues, and helps avoid certification costs and delays.

Delivering a full reference design in an LGA package, the STM32WB1MMC assembles the complete bill of materials needed for a functioning wireless product on cost-efficient PCB technology. There is an internal antenna and optimized matching network, as well as convenient pins for attaching an external antenna instead of the internal one if required.

RF performance up to +6dBm output power and -96dBm sensitivity, with optimized signal routing, ensures reliable communication over long distances at data rates up to 2Mbit/s. A switched-mode power supply for the subsystem is also built in. The entire module is made in-house, which simplifies supply and support for customers, and ST's 10-year rolling longevity plan ensures long-term availability.

The module is built around the STM32WB15 MCU with 320KB flash and 48KB RAM. The MCU's dual-core architecture comprising Arm(R) Cortex(R)-M0+ and Cortex-M4 cores ensures real-time performance of both the radio subsystem, from the M0+, and user application, running on the M4. The Bluetooth 5.3 stack and profiles provided support the latest capabilities including advertising extensions. Architected to minimize energy demand, the MCU provides flexible power-management modes including standby and stop2 that allow self-powered devices to operate without intervention for extended periods. The module allows easy access to all STM32WB15 features, which include a 12-bit analog-digital converter (ADC), various digital interfaces, and an interface.

Like the existing STM32WB5MMG module, which contains larger flash and SRAM, the STM32WB1MMC module and its supporting B-WB1M-WPAN1(1) evaluation board are fully integrated within the STM32Cube environment.

Software development is thus as convenient as working with any of the STM32WB MCUs. The STM32CubeWB MCU package provides resources including hardware abstraction layer (HAL) firmware, Low-Layer APIs, File system, and RTOS. Sharing this package with other STM32WB MCUs allows direct porting of existing projects to the module, which maximizes flexibility and helps accelerate project completion.

STM32WB1MMC modules are in production now and available for $5.32 for orders of 10,000 units.

For more information, please visit

(1)The evaluation board, B-WB1M-WPAN1, will be available in Q2 2023

STM32 is a registered and/or unregistered trademark of STMicroelectronics International NV or its affiliates in the EU and/or elsewhere. In particular, STM32 is registered in the US Patent and Trademark Office.

About STMicroelectronics

At ST, we are more than 50,000 creators and makers of semiconductor technologies mastering the semiconductor supply chain with state-of-the-art manufacturing facilities. An integrated device manufacturer, we work with more than 200,000 customers and thousands of partners to design and build products, solutions, and ecosystems that address their challenges and opportunities, and the need to support a more sustainable world. Our technologies enable smarter mobility, more efficient power and energy management, and the wide-scale deployment of the Internet of Things and connectivity. ST is committed to becoming carbon neutral by 2027. Further information can be found at https://jpn01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.st.com%2F&data=05%7C01%7Cmmiura%40chip1stop.com%7C047fcc93f88241639fd208db2b33ad07%7C5e2e624057384ec8802f18b4bfb344a1%7C1%7C0%7C638151273167257986%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=YeLo3n5hR1GjDI2AL45FbMupIxDmaVKg1dlsvMJDWxM%3D&reserved=0.