We're excited to announce a new variant of the ST67W611M1 Wi-Fi module, the ST67W611M1A6P. This new module is specifically designed to help developers build more robust and reliable wireless products by overcoming challenging RF environments.
The new 'P Version' (ST67W611M1A6P)
This new module comes in a compact 32-pin LGA package, making it a great fit for space-constrained designs.
- Package size: 12.28 x 12.28 x 2.4 mm
- Package type: 32-pin LGA
- Pitch: 1.27 mm
While the compact form factor is a significant benefit, the standout feature unlocked by this version is receive (RX) diversity.
The game-changer: RX diversity
We all know that real-world environments are tough on radio signals. The ST67W611M1A6P directly addresses this by using RX diversity to recover radio performance, especially in difficult reception conditions.
This feature is essential for tackling common RF problems like:
- Antenna cross-polarization
- Multiple reflections on the radio path
- Multipath fading
How it works
- The solution combines simplicity and power by using RX Diversity with two antennas placed in different configurations, such as orthogonally.
- A built-in intelligent algorithm operates in real-time during the packet’s preamble, measuring the RSSI (Received Signal Strength Indicator) from both antennas.
- Based on these measurements, the algorithm instantly selects the antenna receiving the strongest signal to receive the remainder of the packet.
- This automatic antenna selection ensures that the device consistently uses the best signal path, significantly enhancing link stability and throughput, especially in challenging locations.
Get started with new reference designs
To help you accelerate your development and evaluate this new feature, we have two new reference designs ready:
- B2414 board: This board is your go-to for standard applications featuring a single antenna path.
- B2415 board: This board is specifically designed to leverage the new RX diversity feature, providing a two-antenna path for full evaluation and implementation.
The new ST67W611M1A6P module and these reference designs give you the power to create next generation connected devices that maintain performance even when the signal environment is less than ideal.
Check out the product page Low-power Wi-Fi 6 & Bluetooth LE combo coprocessor module for more details and let us know what you plan to build in the comments below!
Additional resources
- Product page - ST67W611M1
- Reference design - STDES-67W61P1-U5
First published on Dec 18, 2025
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