Micros

Microcontrollers suit wireless IoT devices

14th March 2024
Mick Elliott
0

The STM32WBA wireless microcontroller Series from STMicroelectronics brings designers the performance, efficiency, and security required for Bluetooth Low Energy enabled applications.

The microcontrollers are in stock at distributor Anglia Components.

This multiprotocol wireless and ultralow power device family embeds a powerful and ultralow power radio compliant with the Bluetooth SIG Low Energy specification 5.4 alongside a high-performance Arm Cortex-M33 32-bit RISC core which operates at a frequency of up to 100 MHz..

The devices integrate a 2.4 GHz RADIO supporting the Bluetooth Low Energy standard and other proprietary protocols if required.

Extended far end communications range is also possible thanks to +10 dBm output power. The Cortex-M33 core features a single-precision floating-point unit (FPU), supporting all the Arm single-precision data-processing instructions and all the data types. The core also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) that enhances the application security.

Focusing on the Bluetooth Low Energy 5.4 protocol, the STM32WBA series allows non-expert developers to easily add wireless communication to their device at an affordable cost.

Leveraging the STM32U5 architecture, the MCU series is an ultra-low power platform and offers inherited digital and analogue peripherals, suitable for many applications, from industrial, to smart home and consumer markets. The ultra-low power performance of these microcontrollers allows increased battery life especially when using the advertising extension for device communication feature. The realisation of low-power end product designs is further enabled by a comprehensive set of power-saving modes.

The STM32WBA wireless MCU Series embeds large memory to sustain both applications and connectivity activities, coming with up to 1 Mbytes of flash memory and 128 Kbytes of RAM.

A smart set of peripherals like ADC, touch sensing, times, make this product a self-sufficient application wireless MCU.

For IoT devices STMicroelectronics recognise that security is paramount, the microcontrollers offer security foundation compliant with the TBSA (trusted-based security architecture) requirements from Arm.

They embed the necessary security features to implement a secure boot, secure data storage, and secure firmware update.

Besides these capabilities, the devices incorporate a secure firmware installation feature that allows the customer to secure the provisioning of the code during its production.

A flexible life cycle is managed thanks to multiple levels readout protection and debug unlock with password.

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