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STMicroelectronics STM32W108HBU61TR
- Part No.:
- STM32W108HBU61TR
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
STM32W108HBU61TR.pdf
- Description:
- IC RF TXRX+MCU BLE 40VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,494
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Product details
Overview
STM32W108HBU61TR 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 home automation systems.
For engineers reviewing the STM32W108HBU61TR datasheet, STM32W108HBU61TR pinout, STM32W108HBU61TR application, or STM32W108HBU61TR 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 high-sensitivity RX modes (–100 dBm at 1% PER). Its integrated MAC handles frame filtering, ACK generation, and CSMA/CA, eliminating external protocol stack dependency.
Power management includes dual internal regulators (1.8 V and 1.25 V), fast 100 µs wake-up from deep sleep via HSI oscillator, and hardware-accelerated AES128 for secure over-the-air updates. The Cortex-M3 runs at 6/12/24 MHz with Thumb®-2 instruction set and nested vectored interrupt controller.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 24 MHz max clock - enables real-time ZigBee stack execution with deterministic interrupt latency. |
| Wireless Standard | IEEE 802.15.4-2006 PHY/MAC - supports native ZigBee Pro and RF4CE without external baseband IC. |
| Flash / RAM | 256 KB Flash / 16 KB RAM - sufficient for full ZigBee coordinator/router firmware plus application logic. |
| RF Performance | –99 dBm RX sensitivity (1% PER), +3 dBm TX output - achieves 102 dB link budget for robust indoor mesh networking. |
| Low-Power Modes | 400 nA deep sleep with RAM retention - enables battery-powered sensors with multi-year operation on coin cells. |
| GPIO Count | 24 highly configurable pins with Schmitt-trigger inputs - supports direct interface to switches, LEDs, and analog sensors without external conditioning. |
| Security | Hardware AES128 accelerator - offloads encryption/decryption from CPU, reducing latency and power for secure OTA updates. |
Pinout & Package
STM32W108HBU61TR uses a 48-pin VFQFPN package (7 × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are validated per STMicroelectronics DocID16252 Rev 16, Section 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Supply rails | Separate 2.1–3.6 V domains for core, analog, and I/O - enable noise isolation and flexible power sequencing. |
| OSC_IN / OSC_OUT | 24 MHz crystal interface | Drives high-frequency system clock; supports low-external-component RF layout with single crystal. |
| LSE_IN / LSE_OUT | 32.768 kHz crystal input | Enables precise sleep timer and RTC operation for time-synchronized sensor wake-up. |
| RX / TX / ANT | RF transceiver terminals | Differential RF I/O with integrated balun - simplifies antenna matching and reduces BOM count. |
| nBOOTMODE | Boot mode select | Pull-up/pull-down configuration determines boot source (internal Flash vs. UART/SPI loader). |
| SWDIO / SWCLK | ARM Serial Wire Debug | Enables non-intrusive firmware debug and flash programming without JTAG header footprint. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated IEEE 802.15.4 Transceiver + MAC | Eliminates need for external RF front-end and protocol co-processor, reducing PCB area and BOM cost by >30%. |
| Hardware AES128 Accelerator | Reduces encryption latency to <1 µs per 128-bit block, enabling secure beaconing and encrypted sensor data transmission. |
| 24 GPIOs with Schmitt Triggers | Supports direct connection to noisy mechanical switches or digital sensors without external debouncing or level-shifting circuitry. |
| Non-Intrusive Packet Trace Interface (PTI) | Allows real-time RF packet capture and analysis during live network operation without disrupting timing-critical MAC behavior. |
| Flexible Clock System | Combines HSI (100 µs wake-up), HSE (24 MHz precision), LSI (10 kHz low-power), and LSE (32.768 kHz accuracy) for optimal power/performance trade-offs. |
Applications
| Smart Energy Meters | Home Automation Hubs |
|---|---|
Use Scenario: Two-way communication between utility meters and concentrators in AMI networks. IC Role / Device Role / Timing Role: IEEE 802.15.4 SoC acting as end-device node with synchronized timekeeping via LSE crystal. Use Value: 400 nA deep sleep current extends battery life to >10 years; AES128 ensures regulatory compliance for secure meter data reporting. |
Use Scenario: Central hub coordinating lighting, HVAC, and security sensors across ZigBee Pro mesh network. IC Role / Device Role / Timing Role: Coordinator node running full ZigBee stack with 256 KB Flash for routing table storage and OTA update handling. Use Value: Integrated 2.4 GHz transceiver and MAC reduce external component count; 24 GPIOs support direct relay and sensor interfacing. |
| Wireless Security Sensors | RF4CE Remote Controls |
Use Scenario: Battery-powered door/window contact sensors transmitting tamper alerts in residential security systems. IC Role / Device Role / Timing Role: Low-power end-device with event-triggered wake-up via GPIO interrupt and rapid RF transmit burst. Use Value: 31 mA TX current at +3 dBm enables reliable 30 m indoor range; deep sleep current of 400 nA yields >5-year coin-cell lifetime. |
Use Scenario: Consumer IR-to-ZigBee remote control bridging legacy AV equipment with smart home ecosystems. IC Role / Device Role / Timing Role: RF4CE-compliant endpoint implementing button scan, encryption, and low-latency packet transmission. Use Value: Hardware AES128 and sub-100 µs wake-up ensure responsive user experience; 24 MHz HSE enables precise IR carrier generation. |
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 |
|---|---|---|---|
| CC2530F256RHAT | 8051 core, 256 KB Flash, no hardware AES, lower RX sensitivity (–97 dBm) | Limited to basic ZigBee HA; lacks secure OTA capability and deep-sleep efficiency | Choose only if migrating legacy CC2530 firmware and accepting higher power consumption. |
| JN5169-001-M00 | 32-bit RISC core, 512 KB Flash, integrated ZigBee Pro stack, –100 dBm RX | Built-in NXP-provided ZigBee stack reduces firmware development effort but increases licensing complexity | Select when prioritizing certified ZigBee Pro stack availability over hardware-level control of MAC layer. |
Compared with CC2530F256RHAT and JN5169-001-M00, STM32W108HBU61TR offers superior deep-sleep efficiency (400 nA vs. ≥1 µA), hardware AES acceleration not found in CC2530, and direct Cortex-M3 access to MAC registers-critical for custom protocol extensions and timing-sensitive sensor fusion.
Availability
STM32W108HBU61TR is available at Aetrix Electronics and suitable for smart energy metering, building automation gateways, and wireless security sensor nodes requiring stable component supply and long-term lifecycle support.
Supply support for STM32W108HBU61TR 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, and power devices for industrial, automotive, and consumer markets.
This part belongs to the STM32W wireless MCU family, engineered specifically for ultra-low-power IEEE 802.15.4 mesh networking in resource-constrained IoT endpoints where RF reliability, security, and battery longevity are critical.
FAQ
Is STM32W108HBU61TR recommended for new designs?
No. STMicroelectronics classifies this device as "not recommended for new designs" as of March 2015 (DocID16252 Rev 16). It remains in production for legacy program continuity but lacks roadmap support for future feature enhancements or process node migrations.
What is the maximum configurable TX output power?
The device supports up to +8 dBm TX output power in high-power mode, achieved via internal PA bias adjustment and external matching network optimization - exceeding the default +3 dBm normal mode for extended-range applications.
Does it support external power amplifiers?
Yes. The RF output path includes dedicated ANT pin and internal PA control signals, enabling seamless integration with external 2.4 GHz PAs such as SKY65111 or Qorvo QPA4360 to achieve >20 dBm EIRP in certified modules.
How many serial interfaces does it provide?
It integrates two independent serial controllers supporting SPI (master/slave), I²C (multi-master), and UART (with RTS/CTS flow control and 16-byte FIFOs) - each with DMA channels and configurable baud rates up to 2 Mbps for sensor aggregation and gateway bridging.
STM32W108HBU61TR 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)
STM32W108HBU61TR FAQ
1.How can I place an order for STM32W108HBU61TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32W108HBU61TR 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 STM32W108HBU61TR reliable?
The price and inventory of STM32W108HBU61TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32W108HBU61TR is usually 5 days.
3.What payment methods are accepted for STM32W108HBU61TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32W108HBU61TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32W108HBU61TR?
STM32W108HBU61TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32W108HBU61TR 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 STM32W108HBU61TR?
For technical support, including STM32W108HBU61TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32W108HBU61TR requirements.
6.How does Aetrix verify that STM32W108HBU61TR is sourced from the original manufacturer or authorized distributors?
All STM32W108HBU61TR 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 STM32W108HBU61TR meets industry standards.
7.What is the process for return or replacement of STM32W108HBU61TR?
All STM32W108HBU61TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32W108HBU61TR, 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 STM32W108HBU61TR part is unused and in its original packaging.
Return procedure for STM32W108HBU61TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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