STM32WB55REV7

RF Transceiver ICS Overview

The STM32WB55REV7 is an ultra-low-power dual-core microcontroller from the STM32WB series, manufactured by STMicroelectronics. It integrates a high-performance 64 MHz Arm Cortex-M4 core with a dedicated 32 MHz Cortex-M0+ processor for real-time radio management. The device features 512 kB of Flash memory and 256 kB of SRAM. It supports Bluetooth LE 5.0, IEEE 802.15.4, Zigbee, Thread, and Matter protocols via its integrated 2.4 GHz radio. Key peripherals include a 12-bit ADC, USB 2.0 FS interface, Quad-SPI, and multiple communication interfaces such as I2C, SPI, and USART. It operates within a voltage range of 1.71 V to 3.6 V and is housed in a VFQFPN-68 package.

RF Transceiver ICS Feature Summary

• Dual-core architecture combining a 64 MHz Cortex-M4 for application processing and a 32 MHz Cortex-M0+ for low-power radio management.
• Integrated multi-protocol wireless connectivity supporting Bluetooth LE 5.0, 802.15.4, Zigbee, Thread, and Matter standards.
• Enhanced security features including hardware acceleration for AES-256 encryption, PKA, RNG, and secure key storage mechanisms.
• Comprehensive peripheral set including a 12-bit ADC, LCD driver, capacitive sensing channels, and extensive digital communication interfaces.

RF Transceiver ICS Applications

• Smart home devices requiring multi-protocol wireless support
• Industrial IoT sensors and gateways
• Wearable electronics and health monitoring devices
• Smart lighting and building automation systems

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'REV7' against the official STMicroelectronics datasheet DM00344191 to confirm pinout and package compatibility. Ensure the required firmware libraries support the targeted wireless protocols. Check for moisture sensitivity levels and reflow soldering profile requirements during assembly. Confirm availability of ECAD models for PCB design integration.

RF Transceiver ICS Selection Notes

Select this component when both high-performance application processing and ultra-low-power wireless connectivity are required in a single chip. The dual-core design allows the Cortex-M0+ to handle radio stack tasks independently, preserving battery life. Consider the 512 kB Flash capacity for complex applications. Evaluate the VFQFPN-68 package constraints against board space limitations compared to other STM32WB variants.

RF Transceiver ICS Part Context

This part belongs to the STM32WB55xx family, designed for wireless IoT applications. It shares architectural similarities with the STM32WB35xx but offers higher memory capacities. The device is part of ST's strategy to provide secure, multi-protocol solutions for the expanding IoT market, leveraging the proven STM32 ecosystem for development tools and software support.

RF Transceiver ICS Replacement Considerations

Direct substitutes within the same package and memory configuration may include other STM32WB55 variants with different suffixes indicating package or temperature grade differences. Verify electrical characteristics and pin compatibility before substitution. Cross-referencing with the STM32WB55CCU7 or STM32WB55CEU7 requires careful evaluation of pin count and memory size differences.