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Introduction
This document provides the ordering information and mechanical device characteristics of the STM32WB55xx and STM32WB35xx microcontrollers, based on Arm® cores(a).
This document must be read in conjunction with the reference manual (RM0434), available from the STMicroelectronics website www.st.com .
For information on the Arm® Cortex®-M4 and Cortex®-M0+ cores, refer, respectively, to the Cortex®-M4 Technical Reference Manual and to the Cortex®-M0+ Technical Reference Manual, both available on the www.arm.com website.
For information on 802.15.4 refer to the IEEE website ( www.ieee.org ).
For information on Bluetooth® refer to www.bluetooth.com .Description
The STM32WB55xx and STM32WB35xx multiprotocol wireless and ultra-low-power devices embed a powerful and ultra-low-power radio compliant with the Bluetooth® Low Energy SIG specification v5.0 and with IEEE 802.15.4-2011. They contain a dedicated Arm® Cortex® -M0+ for performing all the real-time low layer operation.
The devices are designed to be extremely low-power and are based on the highperformance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 64 MHz.
This core features a Floating point unit (FPU) single precision that supports all Arm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) that enhances application security.
Enhanced inter-processor communication is provided by the IPCC with six bidirectional channels. The HSEM provides hardware semaphores used to share common resources between the two processors. -
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