STM32WBA55UEI7

RF Transceiver ICS Overview

The STM32WBA55UEI7 is a multiprotocol wireless System on Chip (SoC) from STMicroelectronics, based on the Arm Cortex-M33 core operating at 100 MHz. It integrates a 2.4 GHz radio supporting Bluetooth LE 5.4 and IEEE 802.15.4 protocols including Zigbee, Thread, and Matter. The device features 512 Kbytes of Flash memory and up to 128 Kbytes of SRAM. It provides +10 dBm output power with RX sensitivity of -96 dBm for Bluetooth LE at 1 Mbps and -97.5 dBm for IEEE 802.15.4. The package is UFBGA-59.

RF Transceiver ICS Feature Summary

• Supports Bluetooth LE 5.4 audio streaming with Auracast broadcasting capabilities
• Compliant with SESIP Level 3 target certification and US Cyber Trust Mark regulations
• Integrates secure boot, secure data storage, and secure firmware update mechanisms
• Includes hardware security features such as Memory Protection Unit (MPU) and DSP instructions

RF Transceiver ICS Applications

• Smart home devices requiring multiprotocol connectivity
• Wireless hearing aids and assistive listening systems
• Industrial sensor nodes using Thread or Zigbee
• Matter-enabled smart appliances

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'I7' against the official datasheet to confirm the temperature range and package variant. Ensure compatibility with the required antenna design and RF layout guidelines specified in the reference manual. Confirm that the UFBGA-59 package footprint matches the PCB design constraints. Check for any recent updates to the security certification status mentioned in the product brief.

RF Transceiver ICS Selection Notes

Select this component when both high-level security compliance and multiprotocol wireless support are required. The Cortex-M33 core offers sufficient processing power for complex audio streaming and protocol handling. Consider the 512 Kbyte Flash limit for larger application codebases. Evaluate the need for Auracast support if targeting consumer audio applications.

RF Transceiver ICS Part Context

This part belongs to the STM32WBA5xxx series, designed for ultra-low-power wireless applications. It shares the same core architecture and security features with other variants in the family but differs in memory size and package options. The series targets IoT devices needing robust security and multiple wireless standards.

RF Transceiver ICS Replacement Considerations

The STM32WBA55CG is a similar variant within the same series, offering 1 Mbyte of Flash memory. Verify pinout compatibility and software library support before substitution. Other STM32WBA series members may have different memory capacities or package types.