Product overview
Description
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. It embeds the necessary security features to implement a secure boot, secure data storage, and secure firmware update. A flexible life cycle is managed through multi-level readout protection and debug unlock with password.
Firmware hardware isolation is supported using securable peripherals, memories and I/Os, and privilege configuration of peripherals and memories.
The devices feature several protection mechanisms for embedded flash memory and SRAM: readout protection, write protection, secure, and hide protection areas.
The devices embed several peripherals reinforcing security: a fast AES coprocessor, a PKA (public key accelerator) with DPA resistance, a HASH hardware accelerator, and a true random number generator.
The devices offer active tamper detection and protection against transient perturbation attacks with several internal monitoring mechanisms generating secret data erasure in the case of an attack.
The devices offer one 12-bit ADC (2.5 Msps), a low-power RTC, one 32-bit and two 16-bit general-purpose timers, and two 16-bit low-power timers. They also feature standard and advanced communication interfaces, namely two I2Cs, one SPI, one SAI, one USART and one low-power UART, and one full-speed Host- and Device-capable USB. The feature set is product-dependent.
The devices operate in the -40 to 85 °C and -40 to 105 °C temperature ranges from a 1.71 to 3.6 V power supply.
The design of low-power applications is enabled by a comprehensive set of power-saving modes.
Many peripherals (including radio, communication, analog, and timer peripherals) can be functional and autonomous in Stop mode with direct memory access thanks to BAM (background autonomous mode) support.
Some independent power supplies are supported, like an analog independent supply input for ADC, a 3.3 V dedicated supply input for USB, and radio-dedicated supply inputs for the 2.4 GHz RADIO.
The devices offer three packages, up to 48 pins, with or without SMPS.
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All 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 Matter and 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.
Recommended documentation
EDA Symbols, Footprints and 3D Models
STMicroelectronics - STM32WBA23KE
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All resources
| Resource title | Version | Latest update |
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IBIS models (1)
| Resource title | Version | Latest update | |||
|---|---|---|---|---|---|
| ZIP | 3.0 | 18 Feb 2025 | 18 Feb 2025 |
BSDL files (1)
| Resource title | Version | Latest update | |||
|---|---|---|---|---|---|
| ZIP | 2.0 | 30 Oct 2024 | 30 Oct 2024 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| STM32WBA23KEU6 | Active | UFQFPN 32 5x5x0.55 mm | Industrial | Ecopack2 | 10 | 2026-02-24T00:00:00.000+01:00 | |
| STM32WBA23KEU6TR | Active | UFQFPN 32 5x5x0.55 mm | Industrial | Ecopack2 | 10 | 2026-02-24T00:00:00.000+01:00 | |
| STM32WBA23KEU7 | Active | UFQFPN 32 5x5x0.55 mm | Industrial | Ecopack2 | 10 | 2026-02-24T00:00:00.000+01:00 | |
| STM32WBA23KEU7TR | Active | UFQFPN 32 5x5x0.55 mm | Industrial | Ecopack2 | 10 | 2026-02-24T00:00:00.000+01:00 | |
STM32WBA23KEU6
Package:
UFQFPN 32 5x5x0.55 mmMaterial Declaration**:
STM32WBA23KEU6TR
Package:
UFQFPN 32 5x5x0.55 mmMaterial Declaration**:
STM32WBA23KEU7
Package:
UFQFPN 32 5x5x0.55 mmMaterial Declaration**:
STM32WBA23KEU7TR
Package:
UFQFPN 32 5x5x0.55 mmMaterial Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | D/A Converters (typ) (12-bit) | Timers (typ) (16-bit) | Timers (typ) (32-bit) | Number of Channels (typ) | SMPS | Number of Channels (typ) | UART (typ) | I/Os (High Current) | Integrated op-amps | Comparator | SPI (typ) | USART (typ) | Number of Channels (typ) | I2S (typ) | Advanced Motor Control Timers | CAN (2.0) | CAN (FD) | ||
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| STM32WBA23KEU7 | | | distributors No availability of distributors reported, please contact our sales office |
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| STM32WBA23KEU6TR | | | distributors No availability of distributors reported, please contact our sales office |
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| STM32WBA23KEU6 | | | distributors No availability of distributors reported, please contact our sales office |
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| STM32WBA23KEU7TR | | | distributors No availability of distributors reported, please contact our sales office |
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STM32WBA23KEU7 Active
STM32WBA23KEU6TR Active
STM32WBA23KEU6 Active
STM32WBA23KEU7TR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors