STMicroelectronics STM32WB5x Multi-protocol Radio MCU

A powerful low-power Radio built into the BLUETOOTH® low-power SIG specification version 5.0 and the IEEE 802.15.4-2011 standard. Dedicated Arm® Cortex-M0 + performs real-time low-level operations. This ultra-low-power microcontroller is based on a high-performance Arm® Cortex®-M4 32-bit RISC kernel and operates at up to 64MHz.

The operating temperature range of STM32WB5x MCU is -10°C to +85°C (junction temperature: +105°C), and the supply voltage range is 2.0V to 3.6V. The 48-pin UFQFPN package device features a USART (ISO 7816, IrDA, Modbus, and smart card modes), an I2C (SMBus/PMBus), and an SPI up to 32MHz.

Features

● ST advanced patented technology

● Radio
-   2.4 GHz
-   RF transceiver that conforms to the BLUETOOTH® 5.3 specification and IEEE 802.15.4-2011 PHY and MAC, supports Thread and Zigbee® 3.0 protocols
-   Rx sensitivity
     -96dBm (Bluetooth ® low power, 1Mbps)
     -100dBm (802.15.4)
-   Programmable output power: up to +4dBm (step size 1dB level)
-   Integrated balanced-unbalance converter reduces bill of materials
-   Support 1Mbps
-   Support AD extension
-   Dedicated Arm® 32-bit Cortex® M0+ CPU for real-time radio layer
-   Accurate RSSI to achieve power control
-   Suitable for systems requiring compatibility with the following radio frequency specifications: ETSI EN 300 328, EN 300 440, FCC CFR47 Part 15, ARIB STD-T66
-   External PA support
-   Integrated passive device (IPD) supporting chip is available for optimized matching solution (MLPF-WB-01E3)

● Ultra-low power platform
-   Power supply voltage: 2.0V to 3.6V
-   Operating temperature range: -10 °C to +85°C
-   14nA Off mode
-   700nA Standby mode + RTC + 32KB RAM
-   2.25µA Stop Mode + RTC + 128 KB RAM
-   Radio: Rx 7.9mA/Tx (0dBm 8.8mA)

● Arm® 32-bit Cortex®-M4 CPU equipped with FPU, Adaptive Real-time Accelerator (ART Accelerator ™) performs operations from flash memory without waiting, with frequencies up to 64MHz, MPU, 80DMIPS, and DSP instructions

● Performance benchmark
-   1.25 DMIPS/MHz (Drystone 2.1)
-   219.48 CoreMark® (3.43 CoreMark/MHz, 64MHz)

● 303 ULPMark™ CP Power Benchmark

● Power and reset management
-   Super safe, low Power BOR (power off reset), with 5 optional thresholds
-   Ultra-low power POR/PDR
-   Programmable voltage detector (PVD)
-   VBAT mode with RTC and spare register

● Clock source
-   32MHz crystal oscillator with integrated trimmer capacitor (radio and CPU clock)
-   20206-001 32kHz Crystal Oscillator for RTC (LSE)
-   Internal low power 32kHz (±5%) RC (LSI1)
-   Internal Low power 32kHz (stability ±500ppm) RC (LSI2)
-   Internal multi-speed 100kHz to 48MHz oscillator, self-calibrated via LSE (accuracy greater than ±0.25%)
-   High Speed Internal 16MHz Factory Calibration RC (±1%)
-   1 PLL for system clock and ADC

● Memory
-   1MB flash memory, sector protection (PCROP) prevents read/write operations, supports radio stack and applications
-   128KB of SRAM, of which 64KB comes with hardware parity
-   20x 32-bit spare register
-   The boot loader supports USART, SPI, and I2C interfaces
-   OTA (Wireless) Bluetooth low power and 802.15.4 update
-   1KB (128 double words) OTP

● Rich analog peripherals (as low as 2.0V), 12-bit ADC 2.13Msps, up to 16-bit, with hardware oversampling, 200µA/MSPS

● System peripheral
-   Interprocessor Communication Controller (IPCC) for communication with Bluetooth Low Power and 802.15.4
-   HW semaphore, used to share resources between cpus
-   1 DMA controller (each with 7 channels), supporting ADC, SPI, I2C, USART, AES, and timer
-   1x USART (ISO 7816, IrDA, SPI Master, Modbus, and Smart Card modes)
-   1x SPI 32Mbit/s
-   1 I2C (SMBus/PMBus®)
-   1 16-bit 4-channel advanced timer
-   Two 16-bit 2-channel timers
-   1 32-bit 4-channel timer
-   Two 16-bit ultra-low power timers
-   1x independent Systick
-   1x Independent watchdog
-   1 window watchdog

● Security and ID
-   Security Firmware installation (SFI) for Bluetooth Low Power and 802.15.4SW stack
-   2x Hardware encryption AES Max 256 bits (for applications), Bluetooth Low Power and IEEE 802.15.4
-   Customer key store/key manager service
-   HW Public Key Verification Authority (PKA)
-   Encryption algorithm: RSA, Diffie-Helman, ECC over GF(p)
-   True random number generator (RNG)
-   Sector-proof read/write operations (PCROP)
-   CRC cell
-   Nude information: 96-bit unique ID
-   Ieee64-bit unique ID, can achieve 802.15.5 64-bit and Bluetooth low energy 48-bit EUI

● Up to 30 fast I/ OS, 28 of which can withstand 5V voltage

● Development support
-   Serial line debugging (SWD), JTAG for application processor
-   Applied cross trigger

● The package complies with ECOPACK2 standards