STMicroelectronics STM32WBA25CE→STM32WBA25CEU6

The STM32WBA2xxx multiprotocol wireless and ultra-low-power devices embed a powerful and ultra-low-power 2.4 GHz RADIO compliant with the Bluetooth^® LE specifications and with IEEE 802.15.4-2015. They contain a high-performance Arm^® Cortex^®-M33 32-bit RISC core. They operate at a frequency of up to 64 MHz. The devices integrate a 2.4 GHz RADIO supporting Bluetooth^® LE, Thread^®, and Zigbee^®. It provides support for an array of up to eight antennas and an external power amplifier. The PTA (packet traffic arbitration) interface is supported. 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. This core also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) that enhances the application security. The devices embed high-speed memories (512 Kbytes of flash memory and 96 Kbytes of SRAM), one Quad-SPI memory interface, and a range of enhanced I/Os and peripherals connected to AHB and APB buses on the 32-bit multi-AHB bus matrix. The devices offer a security foundation compliant with the TBSA (trusted-based security architecture) requirements from Arm.

Key features

• Includes ST state-of-the-art patented technology
• Ultra-low-power radio
  • 2.4 GHz radio
  • RF transceiver supporting Bluetooth^® LE, IEEE 802.15.4-2015 PHY and MAC, supporting Zigbee^®
  • RX sensitivity: -96 dBm (Bluetooth^® LE at 1 Mbps), -100 dBm (IEEE 802.15.4 at 250 kbps)
  • Programmable output power, up to +10 dBm with 1 dB steps
  • Support for external PA
  • Packet traffic arbitration
  • Integrated balun to reduce BOM
  • Suitable for systems requiring compliance with radio frequency regulations ETSI EN 300 328, EN 300 440, FCC CFR47 Part 15, and ARIB STD-T66
• Bluetooth^® LE
  • LE 2M
  • LE coded
  • Direction finding
  • LE power control
  • Isochronous channels
  • Extended advertising
  • Periodic advertising
  • LE secure connections
  • LE audio
  • Mesh networking
  • Qualified against Bluetooth^® Core 6.0
• Ultra-low-power with FlexPowerControl
  • 1.71 to 3.6 V power supply
  • -40 to 85/105 °C ambiant temperature range
  • Autonomous peripherals with DMA, functional down to Stop 1 mode
  • 110 nA Standby mode (7 wake-up pins)
  • 490 nA Standby mode with 64-Kbyte SRAM
  • 980 nA Standby mode with 64-Kbyte SRAM, 2.4 GHz radio, RTC
  • 4.81 µA Stop 1 mode with 64-Kbyte SRAM, 2.4 GHz radio, RTC
  • 21 µA/MHz Run mode
  • Radio: Rx 3.58 mA/ Tx at 0 dBm 4.65 mA
• Core: Arm^® 32-bit Cortex^®-M33 CPU with TrustZone^®, MPU, DSP, and FPU running at up to 64 MHz
• ART Accelerator: 4-Kbyte instruction cache allowing 0-wait-state execution from flash memory (frequency up to 64 MHz, 96 DMIPS)
• Benchmarks: 264 CoreMark^® (4.12 CoreMark/MHz)
• Memories
  • 512-Kbyte flash memory with ECC and 10 kcycles
  • 96-Kbyte SRAM, including 32 Kbytes with parity check
  • 512-byte (32 rows) OTP
  • One Quad-SPI memory interface
• Power management: Embedded regulator LDO and SMPS step-down converter, supporting switch on-the-fly and voltage scaling
• Clock management
  • 32 MHz crystal oscillator
  • 32 kHz crystal oscillator (LSE)
  • Internal low-power 32 kHz (±5%) RC
  • Internal 16 MHz factory-trimmed RC (±1%)
  • PLL for system clock, audio, USB, and ADC
• General-purpose input/output: Up to 27 I/Os (most of them 5 V-tolerant) with interrupt capability
• Analog peripherals (independent supply): 12-bit ADC 2.5 Msps, up to 16-bit with hardware oversampling
• Communication peripherals
  • One USB full-speed selectable host or device controller
  • One SAI (serial audio interface)
  • One USART (ISO 7816, IrDA, modem)
  • One LPUART (ISO 7816, modem)
  • One SPI
  • Two I2Cs Fm+ (1 Mbit/s), SMBus/PMBus®
• System peripherals
  • Two 16-bit timers
  • One 32-bit timer
  • Two low-power 16-bit timers (available in Stop mode)
  • Two SysTick timers
  • RTC with hardware calendar and calibration
  • One watchdog
  • 8-channel DMA controller, functional in Stop mode
• Security and cryptography
• Arm^® TrustZone^® and securable I/Os, memories, and peripherals
  • Flexible life cycle scheme with readout protection (RDP) and password protected debug
  • Root of trust thanks to unique boot entry and secure hide protection area (HDP)
  • Secure boot and secure firmware update
  • AES accelerator
  • Public key accelerator, ECC and RSA, SCA resistant
  • HASH hardware accelerator
  • True random number generator, NIST SP800-90B compliant
  • 96-bit unique ID
  • Antitamper protections
• Development support
  • Serial wire debug (SWD), JTAG
  • Embedded trace (ETM)
• All packages are ECOPACK2 compliant.

Applications

• Bluetooth Low Energy (BLE) sensors
• Wearables and health-monitoring devices
• Smart home accessories
• Industrial wireless peripherals