Product overview
Key Benefits
High wireless performance
- Best-in-class radio enabling robust and stable connectivity
- State-of-the-art radio efficiency
- Power control options on IoT devices for longer battery life
Cost effectiveness
- Optimal price point ensuring best value respect to feature availability
- High integration in tiny packages (integrating balun and HSE capacitors)
- Enables 2-layer PCBs for reduced BOM and simplified circuitry
Extensive wireless design ecosystem
- Streamlined project development thanks to STM32Cube
- RF reference designs, IPD chip for easy impedance matching
- Bluetooth® Low Energy and Mesh stacks, software, tools, and resources.
Description
The STM32WB05xZ is an ultra-low-power programmable Bluetooth® Low Energy wireless SoC solution. It embeds STMicroelectronics’s state-of-the-art 2.4 GHz radio IPs, optimized for ultra-low-power consumption and excellent radio performance, for unparalleled battery lifetime. It is compliant with Bluetooth Low Energy SIG core specification version 5.4 addressing point-to-point connectivity and Bluetooth Mesh networking and allows large-scale device networks to be established in a reliable way. The STM32WB05xZ is also suitable for 2.4 GHz proprietary radio wireless communication to address ultra‑low latency applications.
The STM32WB05xZ embeds a Arm® Cortex®-M0+ microcontroller that can operate up to 64 MHz and also the BlueNRG core co-processor (DMA based) for Bluetooth Low Energy timing critical operations.
In addition, the STM32WB05xZ provides enhanced security hardware support by dedicated hardware functions:
True random number generator (RNG), encryption AES maximum 128-bit security co-processor, public key accelerator (PKA), CRC calculation unit, 64-bit unique ID, flash memory read and write protection.
The public key acceleration (PKA) supports the modular arithmetic including exponentiation with maximum modulo size of 3136 bits and the elliptic curves over prime field scalar multiplication, ECDSA signature, ECDSA verification with maximum modulo size of 521 bits CRC calculation unit.
The STM32WB05xZ can be configured to support standalone or network processor applications. In the first configuration, the STM32WB05xZ operates as a single device in the application for managing both the application code and the Bluetooth Low Energy stack.
The STM32WB05xZ embeds high-speed and flexible memory types:
Flash memory of 192 Kbytes, RAM memory of 24 Kbytes, one-time-programmable (OTP) memory area of 1 Kbyte, ROM memory of 7 Kbytes (ST reserved area).
Direct data transfer between memory and peripherals and from memory-to-memory is supported by eight DMA channels with a full flexible channel mapping by the DMAMUX peripheral.
The STM32WB05xZ embeds a 12-bit ADC, allowing measurements of up to eight external sources and up to three internal sources, including battery monitoring and a temperature sensor.
The STM32WB05xZ has a low-power RTC and three general purpose 16-bit timers.
The STM32WB05xZ features standard and advanced communication interfaces:
- 1x SPI/I2S
- 1x LPUART
- 1x USART supporting ISO 7816 (smartcard mode), IrDA and Modbus mode
- 1x I2C supporting SMBus/PMBus
The STM32WB05xZ operates in the -40 to +105 °C temperature range from a 1.7 V to 3.6 V power supply. A comprehensive set of power-saving modes enables the design of low-power applications.
The STM32WB05xZ integrates a high efficiency SMPS step-down converter and an integrated PDR circuitry with a fixed threshold that generates a device reset when the VDD drops under 1.65 V.
The STM32WB05xZ comes in different package versions supporting up to:
- 20 I/Os for the VFQFPN32 package
- 20 I/Os for the WLCSP36 package
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All features
- Includes ST state-of-the-art patented technology.
- Bluetooth® Low Energy system-on-chip supporting Bluetooth 5.4 specifications
- 2 Mbps data rate
- Long range (Coded PHY)
- Advertising extensions
- Channel selection algorithm #2
- GATT caching
- Direction finding (AoA/AoD)
- LE ping procedure
- Periodic advertising and periodic advertising sync transfer
- Periodic advertising with response
- Advertising coding selection
- Encrypted advertising
- LE L2CAP connection-oriented channel
- LE power control and path loss monitoring
- LE channel classification
- Enhanced ATT (EATT)
- Connection subrating
- Broadcast isochronous streams (BIS)
- Connection isochronous streams (CIS)
- Radio
- RX sensitivity level: -97 dBm @ 1 Mbps, -104 dBm @ 125 kbps (long range)
- Programmable output power up to +8 dBm (at antenna connector)
- Data rate supported: 2 Mbps, 1 Mbps, 500 kbps and 125 kbps
- 128 physical connections
- Integrated balun
- Support for external PA and LNA
- BlueNRG core coprocessor (DMA based) for Bluetooth Low Energy timing critical operation
- 2.4 GHz proprietary radio driver
- Suitable for systems requiring compliance with the following radio frequency regulations: ETSI EN 300 328, EN 300 440, FCC CFR47 part 15, ARIB STD‑T66
- Available integrated passive device (IPD) companion chip for optimized matching and filtering
- Ultra-low-power radio performance
- 8 nA in Shutdown mode (1.8 V)
- 0.8 µA in Deepstop mode (with external LSE and Bluetooth LE wake-up sources, 1.8 V)
- 1.0 µA in Deepstop mode (with internal LSI and Bluetooth LE wake-up sources, 1.8 V)
- 4.3 mA peak current in TX (@ 0 dBm, 3.3 V)
- 3.4 mA peak current in RX (@ sensitivity level, 3.3 V)
- High performance and ultra-low-power Arm® Cortex®-M0+ 32-bit, running up to 64 MHz
- Dynamic current consumption: 14 µA/MHz
- Operating supply voltage: from 1.7 to 3.6 V
- -40 ºC to 105 ºC temperature range
- Supply and reset management
- High efficiency embedded SMPS step-down converter with intelligent bypass mode
- Ultra-low-power power-on-reset (POR) and power-down-reset (PDR)
- Programmable voltage detector (PVD)
- Clock sources
- 64 MHz PLL
- Fail safe 32 MHz crystal oscillator with integrated trimming capacitors
- 32 kHz crystal oscillator
- Internal low-power 32 kHz RO
- On-chip nonvolatile flash memory of 192 Kbytes
- On-chip RAM of 24 Kbytes + 4 Kbytes PKA RAM
- One-time-programmable (OTP) memory area of 1 Kbyte
- Embedded UART bootloader
- Ultra-low-power modes with or without timer and RAM retention
- Quadrature decoder
- Enhanced security mechanisms
- Flash read/write protection
- SWD disabling
- Secure bootloader
- Security features
- True random number generator (RNG)
- Hardware encryption AES maximum 128-bit security co-processor
- HW public key accelerator (PKA)
- Cryptographic algorithms: RSA, Diffie-Helman, ECC over GF(p)
- CRC calculation unit
- 64-bit unique ID
- System peripherals
- 1x DMA controller with 8 channels supporting ADC, SPI-I2S, I2C, USART, LPUART, TIMERS
- 1x SPI with I2S interface multiplexed
- 1x I2C (SMBus/PMBus)
- 1x LPUART (low power)
- 1x USART (ISO 7816 smartcard mode, IrDA, SPI Master and Modbus)
- 1x independent WDG
- 1x real-time clock (RTC)
- 1x independent SysTick
- 1x 16-bit, four channel general purpose timer
- 2x 16-bit, two channel general purpose timer
- Infrared interface
- Up to 20 fast I/Os
- All of them with wake-up capability
- All of them retain state in low-power
- All of them 5 V tolerant
- Analog peripherals
- 12-bit ADC with 8 input channels, up to 16 bits with down sampler
- Battery monitoring
- Analog watchdog
- Development support
- Serial wire debug (SWD)
- Four breakpoints and two watchpoints
- All packages are ECOPACK2 compliant.
Circuit Diagram
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - STM32WB05KZ
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All resources
| Resource title | Version | Latest update |
|---|
System View Description (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 17 Oct 2024 | 17 Oct 2024 |
IBIS models (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 06 Nov 2024 | 06 Nov 2024 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STM32WB05KZV6TR | Active | VFQFPN 32 5x5x1.0 mm | Industrial | Ecopack2 | |
| STM32WB05KZV7TR | Active | VFQFPN 32 5x5x1.0 mm | Industrial | Ecopack2 | |
(**) 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.
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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| STM32WB05KZV6TR | | | distributors No availability of distributors reported, please contact our sales office |
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| STM32WB05KZV7TR | | | distributors No availability of distributors reported, please contact our sales office |
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STM32WB05KZV6TR Active
STM32WB05KZV7TR 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