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STMicroelectronics STM32W108HBU63TR
- Part No.:
- STM32W108HBU63TR
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
STM32W108HBU63TR.pdf
- Description:
- IC RF TXRX+MCU BLE 40VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,634
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Product details
Overview
STM32W108HBU63TR 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 KB Flash, 16 KB RAM, and AES128 encryption accelerator. It operates at 2.1–3.6 V, delivers +3 dBm RF output power, and achieves –99 dBm RX sensitivity for ZigBee® Pro and RF4CE applications in smart energy and building automation systems.
For engineers reviewing the STM32W108HBU63TR datasheet, STM32W108HBU63TR pinout, STM32W108HBU63TR application, or STM32W108HBU63TR equivalent, key selection criteria include IEEE 802.15.4 PHY/MAC integration, low-deep-sleep current (400 nA), 24 configurable GPIOs with Schmitt triggers, and VFQFPN48 (7×7 mm) package compatibility with legacy STM32W designs.
Technical Context
The device embeds a full IEEE 802.15.4-compliant radio subsystem with configurable link budget up to 107 dB, supporting both normal and enhanced RF modes. Its integrated MAC layer handles frame filtering, automatic ACK generation, and CSMA/CA, reducing host CPU overhead.
Power management includes three sleep modes: deep sleep with 400 nA retention (RAM + GPIO), low-power run at 6 MHz, and fast wake-up (<100 µs) via high-frequency internal RC oscillator. The security accelerator offloads AES128 encryption/decryption in hardware, enabling secure over-the-air updates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 @ 24 MHz max - enables real-time ZigBee stack execution with deterministic interrupt latency. |
| RF Transceiver | 2.4 GHz IEEE 802.15.4 compliant - supports direct-sequence spread spectrum (DSSS) at 250 kbps, no external RF front-end required. |
| Memory | 256 KB Flash / 16 KB RAM - sufficient for full ZigBee Pro stack plus application firmware; RAM retains state during deep sleep. |
| RF Performance | –99 dBm RX sensitivity (1% PER, 20-byte packet); +3 dBm TX output - achieves 102 dB link budget for robust indoor mesh networking. |
| Power Consumption | 400 nA deep sleep (RAM + GPIO retained); 27 mA RX current with CPU active - enables battery-powered sensor nodes with multi-year life. |
| Package | VFQFPN48, 7 × 7 mm, 0.5 mm pitch - surface-mount compatible with standard reflow profiles; pin-compatible with STM32W108CB/CZ variants. |
| Security | AES128 hardware accelerator - performs encryption/decryption in <10 µs per block, freeing CPU for application logic. |
Pinout & Package
VFQFPN48 (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad; designed for compact PCB layouts and efficient RF grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 2.1–3.6 V input; internal regulators generate 1.8 V (core) and 1.25 V (RF) - single-supply operation simplifies power design. |
| RF_IN / RF_OUT | Transceiver RF interface | Differential 2.4 GHz port requiring 50 Ω matching network - supports direct connection to chip antenna or external PA/LNA. |
| OSC_IN / OSC_OUT | 24 MHz crystal oscillator | Drives high-frequency system clock; optional 32.768 kHz LSE supports precise sleep timer and RTC functions. |
| nRESET | Active-low reset input | Synchronous reset signal with internal pull-up; resets CPU, peripherals, and RF subsystem simultaneously. |
| PA0–PA23 | General-purpose I/O | 24 highly configurable GPIOs with Schmitt-trigger inputs - support UART, SPI, I²C, PWM, and wake-from-sleep event detection. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated IEEE 802.15.4 PHY + MAC | Eliminates need for external MAC controller or protocol stack offload - reduces BOM count and firmware complexity. |
| Hardware AES128 accelerator | Enables secure OTA updates and encrypted payload transmission without CPU intervention or timing jitter. |
| Non-intrusive packet trace (PTI) | Allows real-time RF packet capture and analysis via serial wire debug - critical for ZigBee network validation and interference debugging. |
| Low-power deep sleep mode | 400 nA current draw with RAM and GPIO state preserved - supports battery-powered sensors with >5-year shelf life. |
| Flexible clock system | HSI (100 µs wake-up), HSE (24 MHz crystal), LSI (10 kHz RC), LSE (32.768 kHz) - enables precision timing and rapid transition between power states. |
Applications
| Smart Energy Meters | Building Automation Sensors |
|---|---|
Use Scenario: Wireless communication between electricity/gas/water meters and concentrator gateways in AMI networks. IC Role / Device Role / Timing Role: IEEE 802.15.4 SoC handling physical layer, MAC, and ZigBee Pro stack execution - manages time-synchronized polling and secure meter reading. Use Value: 256 KB Flash stores full ZigBee SE profile; –99 dBm sensitivity ensures reliable reception in metallic meter enclosures. |
Use Scenario: Occupancy, temperature, and humidity sensing nodes deployed across HVAC zones in commercial buildings. IC Role / Device Role / Timing Role: Low-power wireless node controller with deep sleep wake-up on sensor interrupt - maintains sub-1 µA average current while meeting ASHRAE timing requirements. Use Value: 400 nA deep sleep + 24 GPIOs enable multi-sensor integration and battery life exceeding 7 years at 1-minute reporting intervals. |
| Home Automation Gateways | Wireless Security Sensors |
Use Scenario: Central hub coordinating ZigBee lighting, thermostats, and door locks in residential smart home ecosystems. IC Role / Device Role / Timing Role: Dual-role device acting as coordinator and application processor - runs ZigBee Pro stack while managing local UI and cloud connectivity. Use Value: ARM Cortex-M3 core provides sufficient MIPS for concurrent ZigBee routing, TLS handshake, and local decision logic. |
Use Scenario: Door/window contact sensors and motion detectors transmitting tamper alerts and intrusion events to alarm panels. IC Role / Device Role / Timing Role: Ultra-low-power endpoint with AES128 encryption - secures sensor payloads and prevents replay attacks in RF4CE-based security protocols. Use Value: Hardware AES engine processes encryption in <10 µs, ensuring sub-100 ms end-to-end alert latency even on coin-cell power. |
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 hardware AES - requires software AES implementation. | Limited to ZigBee HA (not Pro); lacks integrated MAC acceleration and deep sleep optimization below 1 µA. | Preferred for cost-sensitive, non-Pro ZigBee HA deployments where firmware footprint is constrained. |
| Silicon Labs EFR32MG1P132F256GM32 | ARM Cortex-M4, 256 KB Flash, –102 dBm RX, +10 dBm TX, hardware AES - higher RF performance but larger QFN48 (7×7 mm) footprint. | Supports ZigBee 3.0, Thread, and Bluetooth LE - broader protocol flexibility but increased power in receive mode (35 mA). | Recommended for new designs requiring multi-protocol support, higher link budget, or future-proofing beyond IEEE 802.15.4. |
Compared with CC2530F256, STM32W108HBU63TR offers superior deep-sleep efficiency and integrated MAC acceleration; versus EFR32MG1P132, it provides lower system-level power in ZigBee Pro mesh nodes but lacks multi-protocol capability and advanced RF tuning features.
Availability
STM32W108HBU63TR is available at Aetrix Electronics and suitable for smart energy metering, building automation sensor networks, and wireless security systems requiring stable component supply and long-term industrial availability.
Supply support for STM32W108HBU63TR 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, MEMS, and power solutions for industrial, automotive, and consumer markets.
This device belongs to the STM32W wireless MCU family, engineered specifically for ultra-low-power IEEE 802.15.4 and ZigBee Pro applications - emphasizing RF coexistence, secure over-the-air updates, and minimal external component count.
FAQ
Is STM32W108HBU63TR recommended for new designs?
No - STMicroelectronics explicitly marks this part as "not recommended for new designs" (NRND) as of March 2015. It remains in production for existing program continuity, but new projects should evaluate EFR32MG or TI CC2652 alternatives for long-term roadmap support and enhanced RF/security features.
What is the maximum RF output power and how is it configured?
The device delivers +3 dBm nominal output power in normal mode and supports configurable up to +8 dBm via register-controlled PA bias settings. This adjustment requires matching network recalibration and is validated only within the specified 2.4–2.4835 GHz band per IEEE 802.15.4.
Does STM32W108HBU63TR support external flash memory expansion?
No - the device does not provide dedicated external memory bus interfaces (e.g., FSMC or OCTOSPI). All code and data must reside within its on-chip 256 KB Flash and 16 KB RAM; external storage requires SPI-connected serial flash managed by application firmware.
How is the 400 nA deep sleep current achieved and what peripherals remain active?
Deep sleep disables the CPU, RF transceiver, and most clocks, retaining only RAM contents and GPIO state. The 400 nA figure assumes only the low-frequency internal RC oscillator (LSI10K) and sleep timer enabled - no UART, SPI, or ADC circuits are powered in this mode.
STM32W108HBU63TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- STM32
- Package/Case:
- 40-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:
- 40-VFQFPN (6x6)
STM32W108HBU63TR FAQ
1.How can I place an order for STM32W108HBU63TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32W108HBU63TR 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 STM32W108HBU63TR reliable?
The price and inventory of STM32W108HBU63TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32W108HBU63TR is usually 5 days.
3.What payment methods are accepted for STM32W108HBU63TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32W108HBU63TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32W108HBU63TR?
STM32W108HBU63TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32W108HBU63TR 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 STM32W108HBU63TR?
For technical support, including STM32W108HBU63TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32W108HBU63TR requirements.
6.How does Aetrix verify that STM32W108HBU63TR is sourced from the original manufacturer or authorized distributors?
All STM32W108HBU63TR 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 STM32W108HBU63TR meets industry standards.
7.What is the process for return or replacement of STM32W108HBU63TR?
All STM32W108HBU63TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32W108HBU63TR, 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 STM32W108HBU63TR part is unused and in its original packaging.
Return procedure for STM32W108HBU63TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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