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STMicroelectronics STM32W108HBU64TR
- Part No.:
- STM32W108HBU64TR
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
STM32W108HBU64TR.pdf
- Description:
- IC RF TXRX+MCU BLE 40VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:3,416
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Product details
Overview
STM32W108HBU64TR from STMicroelectronics is a high-performance IEEE 802.15.4 wireless system-on-chip integrating a 32-bit ARM® Cortex®-M3 processor, 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 - deployed in ZigBee® Pro sensor networks and smart energy gateways requiring integrated MAC and low-power wireless connectivity.
For engineers reviewing the STM32W108HBU64TR datasheet, STM32W108HBU64TR pinout, STM32W108HBU64TR application, or STM32W108HBU64TR equivalent, key selection criteria include IEEE 802.15.4 PHY/MAC integration, deep-sleep current (400 nA with RAM retention), 24 configurable GPIOs, and VFQFPN48 (7×7 mm) package compatibility for space-constrained wireless nodes.
Technical Context
The device implements a full IEEE 802.15.4-compliant radio stack with integrated lower MAC, supporting ZigBee® Pro and RF4CE protocols. Its ARM Cortex-M3 core runs at up to 24 MHz with Thumb-2 instruction set, nested vectored interrupt controller (NVIC), and hardware debug via Serial Wire/JTAG.
RF subsystem includes configurable link budget (up to 107 dB), RSSI/CCA detection, and calibrated TX/RX paths. Power management enables multiple sleep modes: deep sleep with 400 nA current (RAM + GPIO retained) and fast wake-up (<100 µs) using high-frequency internal RC oscillator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, executes Thumb-2 instructions at 6/12/24 MHz - enables real-time protocol stack execution without external processor. |
| Wireless Standard | IEEE 802.15.4-2006 compliant PHY + lower MAC - supports ZigBee® Pro, RF4CE, and proprietary 2.4 GHz mesh networking without external RF IC. |
| Memory | 256 KB Flash (in-system programmable), 16 KB SRAM - sufficient for full ZigBee stack + application firmware with over-the-air update capability. |
| RF Performance | -99 dBm RX sensitivity (1% PER, 20-byte packet), +3 dBm nominal TX output (configurable to +8 dBm) - ensures robust 100+ m indoor range in interference-prone environments. |
| Power Consumption | 27 mA RX current (with CPU active), 31 mA TX current (+3 dBm), 400 nA deep sleep (RAM + GPIO retained) - enables battery life >10 years in periodic sensor reporting. |
| Peripherals | 24 GPIOs (Schmitt-trigger inputs), 3x serial interfaces (SPI/I²C/UART), 2x general-purpose timers, AES128 accelerator - supports sensor interfacing, secure data transmission, and timing-critical MAC operations. |
| Supply Voltage | 2.1–3.6 V single supply with internal 1.8 V and 1.25 V regulators - eliminates need for external LDOs, simplifies PCB design for compact nodes. |
Pinout & Package
STM32W108HBU64TR is housed in a 48-pin VFQFPN package (7 × 7 mm, 0.5 mm pitch), optimized for RF performance and thermal dissipation in wireless modules. Pin assignments are validated per STMicroelectronics DocID16252 Rev 16, Section 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 2.1–3.6 V input powering internal regulators; decoupling required per layout guidelines for RF stability. |
| VSS | Digital ground | Reference for all digital logic and analog blocks; separate RF ground plane recommended. |
| RF_IN / RF_OUT | Transceiver antenna interface | Differential 50 Ω RF port; requires matching network for 2.4 GHz band; supports external PA via dedicated control pins. |
| OSC_IN / OSC_OUT | 24 MHz crystal oscillator terminals | Drives high-frequency clock source for CPU and RF timing; low-jitter operation critical for IEEE 802.15.4 symbol accuracy. |
| nBOOTMODE | Boot mode selection | Pulled high during reset to enable normal Flash execution; tied low for system memory boot (ISP). |
| SWDIO / SWCLK | Serial Wire Debug interface | Enables non-intrusive firmware debugging and programming without JTAG pins; essential for field firmware updates. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated IEEE 802.15.4 PHY + lower MAC | Eliminates external RF transceiver and MAC controller, reducing BOM count and PCB area by >30% vs discrete solutions. |
| AES128 encryption accelerator | Hardware-accelerated cipher engine reduces encryption latency to <1 µs per block, enabling real-time secure frame processing in ZigBee clusters. |
| 24 configurable GPIOs with Schmitt triggers | Supports direct connection to noisy industrial sensors (e.g., dry-contact switches, analog transducers) without external signal conditioning. |
| Non-intrusive packet trace interface (PTI) | Enables real-time RF packet capture and protocol analysis without halting CPU - critical for ZigBee network commissioning and interference diagnostics. |
| Low-power deep sleep (400 nA) | Retains full RAM content and GPIO state while disabling CPU, RF, and clocks - preserves network context across multi-year battery operation. |
Applications
| Smart Energy Meters | Home Automation Sensors |
|---|---|
Use Scenario: Wireless communication between electricity/gas meters and concentrator gateways in AMI deployments. IC Role / Device Role / Timing Role: Full-stack ZigBee® Pro node handling MAC layer timing, secure frame encryption, and scheduled beacon transmissions. Use Value: Single-chip solution meets ANSI C12.22 and DLMS/COSEM security requirements while achieving >15-year battery life via 400 nA deep sleep. |
Use Scenario: Battery-powered temperature/humidity/motion sensors in residential HVAC and lighting control systems. IC Role / Device Role / Timing Role: Autonomous endpoint managing sensor sampling, AES-encrypted payload assembly, and low-duty-cycle 2.4 GHz beaconing. Use Value: Integrated 24 MHz crystal oscillator and sleep timer ensure ±50 ppm timing accuracy for synchronized cluster reporting without external components. |
| Building Security Panels | ZigBee® Remote Controls |
Use Scenario: Wireless door/window contact sensors and panic buttons interfacing with central alarm panels via ZigBee® Secure Transport. IC Role / Device Role / Timing Role: Low-latency event-driven transmitter with immediate wake-from-sleep response (<100 µs) and authenticated frame generation. Use Value: Hardware AES128 and fast wake-up guarantee sub-100 ms alarm propagation under worst-case RF coexistence (Wi-Fi/Bluetooth). |
Use Scenario: RF4CE-compliant universal remotes for TVs, set-top boxes, and audio systems. IC Role / Device Role / Timing Role: Dual-role device acting as both RF4CE controller (TX-dominant) and target (RX-dominant) with dynamic role switching. Use Value: Configurable +8 dBm output power extends reliable line-of-sight range to 30+ meters, meeting FCC Part 15.247 conducted emission limits. |
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 (not ARM), 256 KB Flash, -97 dBm RX sensitivity, no hardware AES accelerator | Limited to legacy ZigBee HA stacks; lacks support for ZigBee® Pro security features requiring AES offload | Select when migrating existing 8051-based ZigBee designs where toolchain continuity outweighs security/performance gains. |
| Silicon Labs EFR32MG1P132F256GM32 | ARM Cortex-M4, 256 KB Flash, -101 dBm RX, +10 dBm TX, integrated DC-DC converter | Supports ZigBee 3.0, Thread, and Bluetooth LE; higher RF output but larger QFN48 (7×7 mm) footprint and higher active current (38 mA RX) | Prefer for new designs requiring multi-protocol flexibility or extended range; not drop-in due to different peripheral mapping and SDK. |
Compared with CC2530F256, STM32W108HBU64TR delivers superior security (hardware AES), lower deep-sleep current (400 nA vs 1 µA), and ARM ecosystem compatibility; versus EFR32MG1P132, it offers simpler RF layout (no DC-DC noise filtering) and proven interoperability in legacy ZigBee Pro deployments.
Availability
STM32W108HBU64TR is available at Aetrix Electronics and suitable for smart energy metering, building automation controllers, and ZigBee® Pro wireless sensor networks requiring stable component supply and long-term lifecycle support.
Supply support for STM32W108HBU64TR 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 devices for industrial, automotive, and consumer markets.
The STM32W series targets ultra-low-power wireless sensor networks, integrating RF, MCU, and security into a single die to reduce system complexity and accelerate time-to-market for ZigBee®, RF4CE, and proprietary 2.4 GHz applications.
FAQ
Is STM32W108HBU64TR still in production?
Yes, STM32W108HBU64TR 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 legacy design refreshes with full traceability and extended lifecycle planning.
What development tools are supported for this SoC?
ST provides the STM32W108-DK development kit, STM32W-PROG programmer, and STM32W software library (including ZigBee PRO stack). Debugging uses standard ARM Serial Wire Debug (SWD) via ST-LINK/V2; no JTAG header required. IAR Embedded Workbench and Keil MDK are officially supported IDEs.
Does this part support over-the-air (OTA) firmware updates?
Yes - the 256 KB Flash includes dual-bank architecture and bootloader support enabling secure OTA updates. The integrated AES128 accelerator encrypts update payloads, while the packet trace interface (PTI) allows real-time verification of received frames during update transmission.
How does its RF performance compare to newer 2.4 GHz SoCs?
STM32W108HBU64TR achieves -99 dBm RX sensitivity and 102 dB link budget - competitive with early-generation alternatives. While newer SoCs (e.g., EFR32MG) offer marginally better sensitivity (-101 dBm) and higher TX power (+10 dBm), STM32W108's proven coexistence with Wi-Fi/Bluetooth and minimal external component count remain advantageous in cost-sensitive, interference-heavy deployments.
STM32W108HBU64TR 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)
STM32W108HBU64TR FAQ
1.How can I place an order for STM32W108HBU64TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32W108HBU64TR 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 STM32W108HBU64TR reliable?
The price and inventory of STM32W108HBU64TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32W108HBU64TR is usually 5 days.
3.What payment methods are accepted for STM32W108HBU64TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32W108HBU64TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32W108HBU64TR?
STM32W108HBU64TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32W108HBU64TR 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 STM32W108HBU64TR?
For technical support, including STM32W108HBU64TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32W108HBU64TR requirements.
6.How does Aetrix verify that STM32W108HBU64TR is sourced from the original manufacturer or authorized distributors?
All STM32W108HBU64TR 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 STM32W108HBU64TR meets industry standards.
7.What is the process for return or replacement of STM32W108HBU64TR?
All STM32W108HBU64TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32W108HBU64TR, 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 STM32W108HBU64TR part is unused and in its original packaging.
Return procedure for STM32W108HBU64TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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