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STMicroelectronics STM32W108CBU63TR
- Part No.:
- STM32W108CBU63TR
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
STM32W108CBU63TR.pdf
- Description:
- IC RF TXRX+MCU BLE 48VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:4,758
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Product details
Overview
STM32W108CBU63TR from STMicroelectronics is a high-performance IEEE 802.15.4 wireless system-on-chip integrating an ARM® Cortex®-M3 core, 2.4 GHz transceiver, 256 Kbyte Flash, 16 Kbyte RAM, and AES128 encryption accelerator. It operates at 2.1–3.6 V, delivers +3 dBm RF output, and achieves -99 dBm RX sensitivity for ZigBee® Pro and RF4CE applications in smart energy and home automation systems.
For engineers reviewing the STM32W108CBU63TR datasheet, STM32W108CBU63TR pinout, STM32W108CBU63TR application, or STM32W108CBU63TR equivalent, this page provides verified technical context, real-world use cases, validated alternatives, and supply-chain support for legacy design continuity and field-replacement planning.
Technical Context
The device implements a full IEEE 802.15.4 MAC+PHY stack with integrated RF front-end, supporting configurable link budget up to 107 dB and programmable TX power from +3 dBm to +8 dBm. Its ARM Cortex-M3 core runs at 6/12/24 MHz with Thumb-2 instruction set and nested vectored interrupt controller (NVIC) for deterministic real-time response.
Power management includes deep-sleep modes with 400 nA retention current, dual internal oscillators (HSI for fast wake-up, LSI for low-power timing), and voltage regulation via on-chip 1.8 V and 1.25 V regulators - enabling single-supply operation without external LDOs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC processor with Thumb-2 ISA and NVIC for deterministic interrupt handling |
| Wireless Standard | IEEE 802.15.4 PHY/MAC, compliant with ZigBee® Pro and RF4CE protocol stacks |
| Flash / RAM | 256 Kbyte embedded Flash (programmable in-system), 16 Kbyte SRAM with DMA access and memory protection |
| RF Performance | -99 dBm RX sensitivity (1% PER, 20-byte packet); +3 dBm nominal TX output; configurable up to +8 dBm |
| Power Consumption | 27 mA RX current (with CPU active); 31 mA TX current (+3 dBm); 400 nA deep-sleep current with RAM retention |
| Operating Voltage | 2.1–3.6 V single supply, internally regulated to 1.8 V and 1.25 V for core/peripherals/RF sections |
| GPIO Count | 24 highly configurable GPIOs with Schmitt-trigger inputs, wake capability, and alternate function mapping |
Pinout & Package
STM32W108CBU63TR uses a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), optimized for compact RF layout and thermal performance in wireless sensor nodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | Primary 2.1–3.6 V input; powers digital logic, analog peripherals, and internal regulators |
| VDDA | Analog supply | Separate 2.1–3.6 V rail for ADC, RF receiver, and crystal oscillator circuitry |
| VSS | Digital ground | Reference return path for digital logic and interface circuits |
| VSSA | Analog ground | Isolated ground for RF and ADC to minimize noise coupling into sensitive analog paths |
| PA0–PA23 | General-purpose I/O | 24 configurable pins supporting UART, SPI, I²C, timers, and wake-from-sleep functions |
| RF_P/N | Differential RF interface | Direct connection to 50 Ω antenna or balun; supports integrated PA or external amplifier drive |
| OSC_IN/OSC_OUT | 24 MHz crystal interface | Drives high-frequency oscillator for CPU clock generation and RF timing accuracy |
| LSE_IN/LSE_OUT | 32.768 kHz crystal interface | Optional low-frequency reference for precise sleep timer and RTC functionality |
Key Features
| Feature | Design Value |
|---|---|
| Integrated IEEE 802.15.4 Transceiver | Eliminates need for external RF IC or discrete matching components; enables single-chip wireless node design |
| AES128 Encryption Accelerator | Hardware-accelerated cryptographic engine reduces CPU load and latency for secure frame encryption/decryption |
| Non-intrusive Packet Trace Interface (PTI) | Enables real-time RF packet monitoring without halting CPU execution - critical for protocol stack debugging |
| Flexible Low-Power Sleep Modes | Four-tiered power states including deep-sleep with 400 nA retention, enabling multi-year battery life in sensor endpoints |
| Single-Crystal RF Timing Architecture | Uses one 24 MHz crystal for both CPU clock and RF carrier synthesis - reduces BOM count and PCB area |
Applications
| Smart Energy Metering | Home Automation Gateway |
|---|---|
Use Scenario: Wireless communication between electricity/gas/water meters and concentrator units in AMI networks. IC Role / Device Role / Timing Role: System-on-chip handles MAC-layer processing, RF transmission, secure data encryption, and low-duty-cycle wake scheduling. Use Value: Enables certified ZigBee® Smart Energy profile compliance with minimal external components and ultra-low average current draw. |
Use Scenario: Central hub coordinating lighting, HVAC, and security sensors across a residential network. IC Role / Device Role / Timing Role: Acts as coordinator node with integrated MAC/PHY, managing association, routing, and beacon timing for mesh topology. Use Value: Reduces bill-of-materials by integrating RF, MCU, and crypto functions - accelerating time-to-certification for ZigBee® Home Automation v1.2. |
| Industrial Wireless Sensor Node | RF4CE Remote Control |
Use Scenario: Battery-powered temperature/humidity/vibration monitoring in factory environments with mesh backhaul. IC Role / Device Role / Timing Role: End-device node executing sensor sampling, AES-encrypted packet assembly, and scheduled IEEE 802.15.4 transmissions. Use Value: Achieves >5-year battery life using deep-sleep mode with 400 nA retention and sub-100 µs wake latency from HSI oscillator. |
Use Scenario: Two-way remote control for TVs and set-top boxes requiring low-latency, interference-resilient command delivery. IC Role / Device Role / Timing Role: Implements RF4CE protocol stack with hardware-assisted packet filtering and robust Bluetooth/WiFi coexistence features. Use Value: Delivers <100 ms end-to-end command latency and reliable operation in dense 2.4 GHz ISM band environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar IEEE 802.15.4 wireless SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI CC2530F256 | 8051 core, 256 KB Flash, -97 dBm RX sensitivity, no integrated AES accelerator | Requires external crypto for ZigBee® Pro security; lower RF link budget than STM32W108 | Preferred where legacy 8051 toolchain familiarity outweighs ARM ecosystem advantages |
| Silicon Labs EFR32MG1P132F256GM32 | ARM Cortex-M4, 256 KB Flash, -102.7 dBm RX, +10 dBm TX, integrated DC-DC converter | Higher RF performance and integrated power management; requires different RF layout and antenna tuning | Recommended for new designs needing extended range, higher throughput, or longer battery life |
Compared with CC2530F256, STM32W108CBU63TR offers superior RF sensitivity and hardware AES acceleration; compared with EFR32MG1P132, it provides lower system cost and simpler RF integration but lacks DC-DC efficiency and advanced multiprotocol support.
Availability
STM32W108CBU63TR is available at Aetrix Electronics and suitable for smart energy metering, building automation gateways, and industrial wireless sensor networks requiring stable component supply during legacy product support and field replacement cycles.
Supply support for STM32W108CBU63TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, analog ICs, power management, and MEMS sensors for industrial, automotive, and consumer markets.
This part belongs to the STM32W wireless MCU family, engineered specifically for low-power, standards-compliant IEEE 802.15.4 wireless sensor networking - emphasizing RF integration, security acceleration, and ultra-low-power operation in constrained environments.
FAQ
Is STM32W108CBU63TR still in production?
Yes, STM32W108CBU63TR remains in active production per STMicroelectronics' official product status, though it is marked "not recommended for new designs" as of March 2015. Aetrix Electronics maintains inventory and supports long-term supply for maintenance, repair, and obsolescence mitigation programs.
What development tools are supported for this device?
ST provides the STM32W108-DK development kit, STM32W-PROG programming tool, and STM32W108 firmware libraries. Full IDE support is available through STM32CubeIDE and third-party tools like IAR Embedded Workbench and Keil MDK, all compatible with its ARM Cortex-M3 core and SWD debug interface.
Does this device support ZigBee® 3.0 or Thread protocols?
No - STM32W108CBU63TR natively supports only IEEE 802.15.4 PHY/MAC and ZigBee® Pro (ZigBee 2007). It lacks the IPv6 stack, 6LoWPAN adaptation layer, and Thread-specific security mechanisms required for ZigBee 3.0 or Thread certification.
Can the RF output power be increased beyond +8 dBm?
No - the maximum configurable TX power is +8 dBm, limited by on-die PA architecture and regulatory compliance constraints. External power amplifiers may be added via the RF_P/N differential output, but require custom matching network design and re-certification for regional RF regulations.
STM32W108CBU63TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- STM32
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- Bluetooth, WiFi
- Protocol:
- 802.15.4, Zigbee®
- Modulation:
- -
- Frequency:
- 2.4GHz
- Data Rate (Max):
- -
- Power - Output:
- 3dBm
- Sensitivity:
- -99dBm
- Memory Size:
- 128kB Flash
- Serial Interfaces:
- ADC, GPIO, I2C, SPI, UART
- GPIO:
- 24
- Voltage - Supply:
- 2.1V ~ 3.6V
- Current - Receiving:
- 27mA
- Current - Transmitting:
- 31mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-VFQFPN (7x7)
STM32W108CBU63TR FAQ
1.How can I place an order for STM32W108CBU63TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32W108CBU63TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32W108CBU63TR reliable?
The price and inventory of STM32W108CBU63TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32W108CBU63TR is usually 5 days.
3.What payment methods are accepted for STM32W108CBU63TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32W108CBU63TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32W108CBU63TR?
STM32W108CBU63TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32W108CBU63TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32W108CBU63TR?
For technical support, including STM32W108CBU63TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32W108CBU63TR requirements.
6.How does Aetrix verify that STM32W108CBU63TR is sourced from the original manufacturer or authorized distributors?
All STM32W108CBU63TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32W108CBU63TR meets industry standards.
7.What is the process for return or replacement of STM32W108CBU63TR?
All STM32W108CBU63TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32W108CBU63TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32W108CBU63TR part is unused and in its original packaging.
Return procedure for STM32W108CBU63TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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