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STMicroelectronics STM32W108C8U64TR
- Part No.:
- STM32W108C8U64TR
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
STM32W108C8U64TR.pdf
- Description:
- IC RF TXRX+MCU BLE 48VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:4,095
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Product details
Overview
STM32W108C8U64TR from STMicroelectronics is a fully integrated IEEE 802.15.4 wireless system-on-chip featuring a 32-bit ARM® Cortex™-M3 core, 64-Kbyte Flash, 8-Kbyte RAM, AES128 encryption accelerator, and a 2.4 GHz transceiver with configurable +3 to +8 dBm output power. It operates from 2.1–3.6 V and targets low-power RF4CE remote controls and 6LoWPAN edge nodes.
For engineers reviewing the STM32W108C8U64TR datasheet, STM32W108C8U64TR pinout, STM32W108C8U64TR application, or STM32W108C8U64TR equivalent, key selection criteria include its integrated MAC layer, deep-sleep current of 400 nA (RAM retained), -99 dBm RX sensitivity, 24 GPIOs with Schmitt triggers, and VFQFPN48 package compatibility with antenna-matching network constraints.
Technical Context
The device integrates a full IEEE 802.15.4 PHY/MAC stack in hardware, with dedicated packet trace interface (PTI) for non-intrusive RF frame monitoring. Its ARM Cortex-M3 runs at up to 24 MHz and supports Thumb®-2 instructions for deterministic real-time execution in mesh or star topology protocols.
RF performance is optimized via configurable link budget (up to 107 dB), dual internal oscillators (HSI for fast wake-up in 100 µs; LSI10K for ultra-low-power sleep timing), and robust coexistence logic against WiFi/Bluetooth interference-enabling reliable operation in dense 2.4 GHz ISM band environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3, 24 MHz max - enables real-time protocol stack execution with <1 µs interrupt latency |
| Wireless Standard | IEEE 802.15.4-2006 PHY/MAC - hardware-accelerated baseband processing eliminates host CPU overhead for packet handling |
| Memory | 64-Kbyte Flash / 8-Kbyte RAM - sufficient for Zigbee PRO or custom lightweight mesh firmware with retained context across sleep cycles |
| RX Sensitivity | -99 dBm (1% PER, 20-byte packet) - supports >100 m line-of-sight range in open environments at 250 kbps |
| TX Output Power | +3 dBm nominal, configurable to +8 dBm - allows trade-off between range and battery life without external PA |
| Deep Sleep Current | 400 nA (RAM + GPIO retained) - enables multi-year operation on coin-cell batteries in remote sensor applications |
| Supply Voltage | 2.1–3.6 V - single-supply operation simplifies power design; internal 1.8 V and 1.25 V regulators reduce external component count |
Pinout & Package
Package: VFQFPN48 (7 × 7 mm, 0.5 mm pitch), thermally enhanced for RF stability and compact PCB layout in handheld remotes and sensor nodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main supply input | 2.1–3.6 V analog/digital rail; decoupling required per datasheet layout guidelines for RF noise suppression |
| VSS | Ground reference | Dedicated analog/digital ground pins must be connected to low-impedance plane; separate AGND/DGND routing recommended |
| ANT | RF antenna interface | 50 Ω differential RF output; requires impedance-matched balun and matching network per reference design AN3992 |
| nBOOTMODE | Boot mode select | Pulled high during reset to enter user application; pulled low to activate bootloader via UART/SPI |
| PA0–PA23 | General-purpose I/O | 24 GPIOs with Schmitt-trigger inputs, configurable pull-up/down, and wake capability - support direct button matrix or sensor interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Hardware AES128 accelerator | Offloads encryption/decryption from CPU, enabling secure over-the-air updates with <50 µs per 128-bit block |
| Non-intrusive packet trace (PTI) | Real-time RF frame capture via dedicated debug port - no CPU cycle penalty or firmware modification required |
| Flexible clock sources | HSI (fast wake-up), HSE (24 MHz crystal), LSI10K (10 kHz RC), LSE (32.768 kHz optional) - enables precise timing control across power modes |
| Integrated MAC module | Handles CSMA-CA, ACK generation, and frame filtering in hardware - reduces firmware complexity and jitter in time-critical beaconing |
| Low-frequency sleep timer | 10 kHz LSI10K oscillator maintains wake scheduling accuracy while drawing only 800 nA - critical for periodic sensor sampling |
Applications
| RF4CE Remote Controls | 6LoWPAN Edge Nodes |
|---|---|
Use Scenario: Battery-powered TV/AV remotes requiring sub-100 ms response time and multi-year operation on CR2032 cells. IC Role / Device Role / Timing Role: Full-stack 802.15.4 SoC executing RF4CE profile; handles MAC timing, channel scanning, and encrypted command transmission. Use Value: 400 nA deep-sleep current extends battery life beyond 3 years; integrated balun interface reduces BOM cost by eliminating discrete RF front-end components. | Use Scenario: Industrial temperature/humidity sensors deployed in unattended locations with constrained energy budgets. IC Role / Device Role / Timing Role: Wireless endpoint node running 6LoWPAN adaptation layer; performs IPv6 header compression and IEEE 802.15.4 frame encapsulation. Use Value: Hardware AES128 ensures end-to-end security for firmware updates; configurable TX power (+8 dBm) compensates for metal enclosure attenuation. |
| Zigbee Green Power Devices | Proprietary Sensor Mesh Nodes |
Use Scenario: Energy-harvesting light switches using mechanical press-to-transmit without local energy storage. IC Role / Device Role / Timing Role: Ultra-low-power transmitter implementing Zigbee Green Power GP proxy functionality; wakes instantly on interrupt and transmits preloaded frame. Use Value: 100 µs HSI start-up time enables sub-200 µs total transmit latency; 24 GPIOs support direct switch debouncing and status LED drive. | Use Scenario: Asset tracking tags in logistics requiring long-range, low-duty-cycle reporting in noisy RF environments. IC Role / Device Role / Timing Role: Standalone 802.15.4 node running custom TDMA protocol; manages channel hopping, RSSI-based neighbor discovery, and sleep/wake coordination. Use Value: Robust WiFi/Bluetooth coexistence logic prevents packet loss in warehouse settings; -100 dBm configurable RX sensitivity improves link margin by 1 dB over standard mode. |
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, no AES accelerator, lower RX sensitivity (-97 dBm) | Limited to simpler Z-Stack profiles; lacks hardware security for OTA updates | Preferred where legacy 8051 toolchain familiarity outweighs security and power efficiency needs |
| Silicon Labs EFR32MG1P132F256GM32 | ARM Cortex-M4, 256 KB Flash, +10 dBm TX, proprietary EmberZNet stack | Higher integration (PA+balun), but requires vendor-specific SDK and licensing | Chosen when higher output power and Zigbee 3.0 certification are mandatory |
Compared with CC2530F256 and EFR32MG1P132F256GM32, the STM32W108C8U64TR delivers optimal balance of ARM ecosystem support, ultra-low deep-sleep current, and integrated security-making it ideal for cost-sensitive, battery-constrained RF4CE and custom 802.15.4 deployments where firmware flexibility and BOM simplicity are prioritized.
Availability
STM32W108C8U64TR is available at Aetrix Electronics and suitable for RF4CE remote controls, 6LoWPAN edge nodes, and proprietary sensor mesh networks requiring stable component supply and long-term production continuity.
Supply support for STM32W108C8U64TR 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, specializing in microcontrollers, power management, and wireless solutions for industrial, automotive, and consumer markets.
The STM32W series targets ultra-low-power wireless applications, combining ARM Cortex-M architecture with certified IEEE 802.15.4 radio subsystems to simplify development of secure, standards-compliant IoT endpoints.
FAQ
Does STM32W108C8U64TR support Zigbee 3.0 certification?
No. The STM32W108C8U64TR implements the IEEE 802.15.4-2006 PHY/MAC layer in hardware but does not include the full Zigbee PRO or Zigbee 3.0 stack. Customers must implement or license upper-layer protocols separately. ST provides reference designs for RF4CE and custom 6LoWPAN, but official Zigbee certification requires third-party stack integration and testing.
What external components are mandatory for basic RF operation?
A 24 MHz crystal (with load capacitors), 32.768 kHz crystal (optional, for precise sleep timing), RF balun, and matching network (L/C components per AN3992) are mandatory. The device integrates internal voltage regulators, so only single 2.1–3.6 V supply and proper VDD/VSS decoupling (100 nF + 1 µF per supply pin) are required for digital operation.
Can the AES128 accelerator be used for non-802.15.4 applications?
Yes. The AES128 engine is accessible via memory-mapped registers and supports ECB/CBC/CTR modes independent of the radio subsystem. It can encrypt arbitrary data buffers in firmware-for example, securing sensor payloads before storage or transmission over UART-without CPU involvement, reducing both latency and power consumption.
Is JTAG debugging supported in all power modes?
JTAG/SWD is fully functional in run and sleep modes but disabled in deep-sleep (where only nRESET and wake pins remain active). The Serial Wire Viewer (SWV) and PTI interfaces allow real-time trace without halting execution, preserving timing-critical behavior during RF packet analysis or low-power profiling.
STM32W108C8U64TR 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:
- 64kB Flash, 8kB RAM
- 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)
STM32W108C8U64TR FAQ
1.How can I place an order for STM32W108C8U64TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32W108C8U64TR 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 STM32W108C8U64TR reliable?
The price and inventory of STM32W108C8U64TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32W108C8U64TR is usually 5 days.
3.What payment methods are accepted for STM32W108C8U64TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32W108C8U64TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32W108C8U64TR?
STM32W108C8U64TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32W108C8U64TR 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 STM32W108C8U64TR?
For technical support, including STM32W108C8U64TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32W108C8U64TR requirements.
6.How does Aetrix verify that STM32W108C8U64TR is sourced from the original manufacturer or authorized distributors?
All STM32W108C8U64TR 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 STM32W108C8U64TR meets industry standards.
7.What is the process for return or replacement of STM32W108C8U64TR?
All STM32W108C8U64TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32W108C8U64TR, 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 STM32W108C8U64TR part is unused and in its original packaging.
Return procedure for STM32W108C8U64TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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