STM32WB55xx Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5 and 802.15.4 radio solution Datasheet
●The STM32WB55xx 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 STM32WB55xx devices are designed to be extremely low-power and are based on the high-performance Arm® Cortex^®-M4 32-bit RISC core operating at a frequency of up to 64 MHz. The Cortex^®-M4 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.
●The STM32WB55xx devices embed high-speed memories (Flash memory up to 1 Mbyte, up to 256 Kbyte of SRAM), a Quad-SPI Flash memory interface (available on all packages) and an extensive range of enhanced I/Os and peripherals.
●Direct data transfer between memory and peripherals and from memory to memory is supported by fourteen DMA channels with a full flexible channel mapping by the DMAMUX peripheral.
●The STM32WB55xx devices embed several mechanisms for embedded Flash memory and SRAM: readout protection, write protection and proprietary code readout protection. Portions of the memory can be secured for Cortex® -M0+ exclusive access. The two AES encryption engines, PKA and RNG enable lower layer MAC and upper layer cryptography. A customer key storage feature may be used to keep the keys hidden.
●The devices offer one fast 12-bit ADC and two ultra-low-power comparators associated with a high accuracy reference voltage generator.
●The STM32WB55xx devices embed a low-power RTC, one advanced 16-bit timer, one general-purpose 32-bit timer, two general-purpose 16-bit timers, and two 16-bit low-power timers.
●In addition, up to 18 capacitive sensing channels are available. The devices also embed an integrated LCD driver up to 8x40 or 4x44, with internal step-up converter.
●They also feature standard and advanced communication interfaces, namely one USART (ISO 7816, IrDA, Modbus and Smartcard mode), one Low Power UART (LPUART), two I2C (SMBus/PMBus), two SPI (up to 32 MHz), one serial audio interface (SAI) with two channels and three PDMs, one USB 2.0 FS device with embedded crystal-less oscillator, supporting BCD and LPM, and one Quad-SPI with execute-in-place (XIP) capability.
●The STM32WB55xx operate in the -40 to +105 °C (+125 °C junction) temperature range from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving modes enables the design of low-power applications.
●The STM32WB55xx include independent power supplies for analog input for ADC.
●Features
■Includes ST state-of-the-art patented technology
■Radio
◆2.4 GHz
◆RF transceiver supporting Bluetooth® 5 specification, IEEE 802.15.4-2011 PHY and MAC, supporting Thread and ZigBee® 3.0
◆RX Sensitivity: -96 dBm (Bluetooth® Low Energy at 1 Mbps), -100 dBm (802.15.4)
◆Programmable output power up to +6 dBm with 1 dB steps
◆Integrated balun to reduce BOM
◆Support for 2 Mbps
◆Dedicated Arm® 32-bit Cortex® M0 + CPU for real-time Radio layer
◆Accurate RSSI to enable power control
◆Suitable for systems requiring compliance with radio frequency regulations ETSI EN 300 328, EN 300 440, FCC CFR47 Part 15 and ARIB STD-T66
◆Support for external PA
◆Available integrated passive device (IPD) companion chip for optimized matching solution MLPF-WB55-01E3
■Ultra-low-power platform
◆1.71 V to 3.6 V power supply
◆◆40 °C to 85 / 105 °C temperature ranges
◆13 nA shutdown mode
◆600 nA Standby mode + RTC + 32 KB RAM
◆2.1 µA Stop mode + RTC + 256 KB RAM
◆Active-mode MCU: < 53 µA / MHz when RF and SMPS On
◆Radio: Rx 4.5 mA / Tx at 0 dBm 5.2 mA
■Core: Arm® 32-bit Cortex®-M4 CPU with FPU, adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from Flash memory, frequency up to 64 MHz, MPU, 80 DMIPS and DSP instructions
■Performance benchmark
◆1.25 DMIPS/MHz (Drystone 2.1)
◆219.48 Coremark® (3.43 Coremark/MHz @64 MHz)
■Energy benckmark
◆303 ULPMark™ CP score
■Supply and reset management
◆High efficiency embedded SMPSstep-down converter with intelligent bypass mode
◆Ultra-safe, low-power BOR (brownout reset) with five selectable thresholds
◆Ultra-low-power POR/PDR
◆Programmable voltage detector (PVD)
◆VBAT mode with RTC and backup registers
■Clock sources
◆32 MHz crystal oscillator with integrated trimming capacitors (Radio and CPU clock)
◆32 kHz crystal oscillator for RTC (LSE)
◆Internal low-power 32 kHz (±5%) RC (LSI1)
◆Internal low-power 32 kHz (stability
±500 ppm) RC (LSI2)
◆Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25% accuracy)
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STM32WB55xx 、 STM32WB55CC 、 STM32WB55RC 、 STM32WB55VC 、 STM32WB55CE 、 STM32WB55RE 、 STM32WB55VE 、 STM32WB55CG 、 STM32WB55RG 、 STM32WB55VG 、 STM32WB55Cx 、 STM32WB55Rx 、 STM32WB55Vx 、 STM32WB55VGV6TR |
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[ Architecture ][ Arm® Cortex®-M4 core ][ MemoriesRF subsystem ] |
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Datasheet |
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Please see the document for details |
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UFQFPN48;VFQFPN68;WLCSP100;BGA129 |
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English Chinese Chinese and English Japanese |
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October 2019 |
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Rev 5 |
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DS11929 |
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5.7 MB |
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