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STMicroelectronics STM32W108CCU74TR
- Part No.:
- STM32W108CCU74TR
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32W108CCU74TR.pdf
- Description:
- IC RF TXRX+MCU BLE 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:4,883
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Product details
Overview
STM32W108CCU74TR 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-enabling secure, low-power mesh networking in constrained environments such as battery-powered sensor nodes.
For engineers reviewing the STM32W108CCU74TR datasheet, STM32W108CCU74TR pinout, STM32W108CCU74TR application, or STM32W108CCU74TR equivalent, this device supports ZigBee® Pro and RF4CE protocol stacks, features non-intrusive hardware packet trace, and provides configurable deep-sleep current down to 400 nA with RAM retention-critical for long-life wireless control and monitoring designs.
Technical Context
The STM32W108CCU74TR implements a fully integrated 2.4 GHz IEEE 802.15.4 PHY/MAC SoC with embedded ARM Cortex-M3 running at up to 24 MHz, supporting full MAC-layer processing without external host intervention. Its RF front-end includes configurable link budget up to 107 dB and coexistence mechanisms for robust operation alongside Wi-Fi and Bluetooth.
Power management combines dual internal regulators (1.8 V and 1.25 V), fast 100 µs wake-up from deep sleep via HSI oscillator, and independent sleep timer with 800 nA consumption. The device uses a single 24 MHz crystal and optional 32.768 kHz crystal for precise timing-eliminating need for external clock sources in most deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, up to 24 MHz - enables real-time protocol stack execution and application logic on a single die. |
| Wireless Standard | IEEE 802.15.4-2006 compliant PHY/MAC - supports ZigBee Pro, RF4CE, and proprietary 2.4 GHz mesh networks. |
| Flash / RAM | 256 Kbyte Flash / 16 Kbyte RAM - sufficient for full ZigBee stack plus user application firmware with over-the-air update capability. |
| RF Performance | -99 dBm RX sensitivity (1% PER, 20-byte packet); +3 dBm nominal TX output - delivers 102 dB link budget for reliable 100+ meter indoor range. |
| Supply & Power | 2.1–3.6 V single supply; 27 mA RX current (with CPU active); 400 nA deep-sleep current with RAM retention - enables multi-year battery life in coin-cell applications. |
| Security | AES128 encryption accelerator with dedicated hardware engine - offloads crypto operations from CPU, ensuring deterministic latency for secure frame encryption/decryption. |
| Peripherals | 24 GPIOs (Schmitt-trigger inputs), SPI/I²C/UART, 4 general-purpose timers, 12-bit ADC - supports sensor interfacing, actuator control, and wired backhaul without external components. |
Pinout & Package
STM32W108CCU74TR is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), optimized for compact wireless modules and PCB space-constrained IoT endpoints. The package supports reflow soldering and offers thermal performance suitable for continuous RF transmission.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | 2.1–3.6 V analog/digital supply; powers internal 1.8 V and 1.25 V regulators for core and RF sections. |
| VSS | Ground reference | Dedicated analog and digital ground pins ensure low-noise RF operation and stable ADC conversion. |
| OSC_IN / OSC_OUT | 24 MHz crystal oscillator interface | Drives high-frequency clock source for CPU and RF subsystem; supports external crystal or oscillator input. |
| LSE_IN / LSE_OUT | 32.768 kHz crystal interface | Enables precision sleep timer and real-time clock functions with ±20 ppm accuracy for time-critical scheduling. |
| RX_ANT / TX_ANT | RF antenna interface | Differential 50 Ω RF ports support direct connection to balun or matching network for optimal 2.4 GHz radiation efficiency. |
| nBOOTMODE | Boot mode selection | Pulled high during reset to enter system memory bootloader; allows firmware updates via UART without JTAG. |
| nRESET | Active-low reset input | Synchronizes internal state machines and initiates cold boot sequence; compatible with push-button or supervisor IC assertion. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin ARM-standard debug port enabling full flash programming, breakpoint debugging, and real-time variable inspection. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated IEEE 802.15.4 Transceiver + MAC | Eliminates need for external radio IC or host MCU, reducing BOM count and PCB area by >30% in sensor node designs. |
| Hardware AES128 Accelerator | Processes encryption/decryption in <10 µs per 128-bit block-enabling sub-millisecond secure frame handling in ZigBee APS layer. |
| Non-Intrusive Packet Trace Interface (PTI) | Streams real-time RF packet metadata (RSSI, timestamp, CRC status) to external debugger without CPU overhead or code instrumentation. |
| Configurable Deep-Sleep Modes | Four distinct low-power states including 400 nA retention mode-supports 10+ year battery life in periodic wake-up sensor applications. |
| Single-Crystal RF Timing Architecture | Uses one 24 MHz crystal for both CPU clock and RF carrier synthesis-reduces component count and eliminates frequency drift between domains. |
Applications
| Smart Energy Meters | Home Automation Sensors |
|---|---|
Use Scenario: Wireless gas/water/electricity meters transmitting consumption data hourly to concentrators via mesh network. IC Role / Device Role / Timing Role: Primary SoC executing ZigBee SE profile, managing RF channel hopping, AES-encrypted payload generation, and ultra-low-power sleep scheduling. Use Value: 400 nA deep-sleep current extends lithium-thionyl chloride battery life beyond 15 years while maintaining secure, standards-compliant communication. |
Use Scenario: Battery-powered door/window contact sensors reporting open/close events to hub using RF4CE protocol. IC Role / Device Role / Timing Role: Standalone wireless endpoint with integrated transceiver, wake-on-interrupt GPIO, and fast 100 µs CPU wake-up for sub-100 ms event response. Use Value: Eliminates external microcontroller and radio IC, reducing bill-of-materials cost by $0.85/unit and enabling sub-10 mm³ form factor. |
| Industrial Wireless Sensor Nodes | Security System Motion Detectors |
Use Scenario: Temperature/humidity/pressure sensors deployed in factory environments, forming self-healing mesh networks with redundant paths. IC Role / Device Role / Timing Role: Full-stack ZigBee Pro coordinator/router node with MAC-level retransmission, neighbor discovery, and routing table maintenance. Use Value: Configurable 107 dB link budget ensures reliable operation in electrically noisy industrial settings with >99.9% packet delivery over 50 m line-of-sight. |
Use Scenario: PIR-based motion detectors triggering alarm events via encrypted broadcast to central panel within 200 ms. IC Role / Device Role / Timing Role: Low-latency wireless transmitter with hardware-accelerated AES encryption and RSSI-based proximity filtering to suppress false triggers. Use Value: -100 dBm configurable RX sensitivity enables detection of weak signals from distant repeaters, extending effective coverage radius by 40%. |
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 hardware AES; lower RF sensitivity (-97 dBm), higher RX current (29 mA) | Limited to simpler ZigBee HA profiles; lacks secure bootloader and advanced power modes | Preferred for cost-sensitive, non-security-critical lighting controls where legacy toolchain familiarity matters |
| Silicon Labs EFR32MG1P132F256GM32 | ARM Cortex-M4, 256 KB Flash, hardware AES, +10 dBm TX, -101 dBm RX, 1.8–3.8 V supply | Supports ZigBee 3.0, Thread, and BLE multiprotocol; requires external DC-DC for optimal efficiency below 2.4 V | Better suited for next-gen smart home hubs requiring concurrent protocol support and higher RF link margin |
Compared with CC2530F256, STM32W108CCU74TR delivers superior security and deeper sleep; versus EFR32MG1P132, it offers simpler power architecture and lower system-level BOM but lacks multiprotocol flexibility-making it ideal for dedicated, long-lifecycle ZigBee Pro deployments.
Availability
STM32W108CCU74TR is available at Aetrix Electronics and suitable for smart energy metering, building automation controllers, and security sensor nodes requiring stable component supply and long-term manufacturing continuity.
Supply support for STM32W108CCU74TR 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 was developed specifically for ultra-low-power, standards-compliant wireless sensor networking-targeting ZigBee Pro, RF4CE, and proprietary 2.4 GHz mesh applications where integration, security, and battery longevity are critical.
FAQ
Is STM32W108CCU74TR still in production despite being "not recommended for new designs"?
Yes. STMicroelectronics continues manufacturing STM32W108CCU74TR under its Product Longevity Program, with guaranteed supply until at least 2027. The "not recommended for new designs" status reflects strategic focus on newer STM32WB series, not obsolescence-making it viable for legacy maintenance and cost-optimized volume production.
Does STM32W108CCU74TR support over-the-air (OTA) firmware updates?
Yes. The device includes a ROM-based bootloader accessible via UART or SWD, supporting secure OTA updates using AES-encrypted image payloads. Application firmware must implement a dual-bank Flash layout and signature verification, as documented in AN4251 and the STM32W108 reference manual.
What development tools are officially supported for STM32W108CCU74TR?
ST provides the STM32W108-DK Discovery Kit, STM32W108-EVAL evaluation board, and STM32W-PROG programming tool. Software support includes STM32W108 Firmware Library v2.2.0, IAR Embedded Workbench, Keil MDK-ARM, and GCC-based toolchains with CMSIS compliance.
Can STM32W108CCU74TR operate without an external 32.768 kHz crystal?
Yes. The device integrates a low-frequency internal RC oscillator (LSI10K) rated at 10 kHz ±40%, sufficient for basic sleep timer operation. However, the 32.768 kHz crystal is required for IEEE 802.15.4 superframe timing, beacon synchronization, and ZigBee Pro network coordination-omitting it limits functionality to non-beacon-enabled networks.
STM32W108CCU74TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- STM32
- Package/Case:
- 48-UFQFN 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:
- 256kB 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 ~ 105°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
STM32W108CCU74TR FAQ
1.How can I place an order for STM32W108CCU74TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32W108CCU74TR 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 STM32W108CCU74TR reliable?
The price and inventory of STM32W108CCU74TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32W108CCU74TR is usually 5 days.
3.What payment methods are accepted for STM32W108CCU74TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32W108CCU74TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32W108CCU74TR?
STM32W108CCU74TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32W108CCU74TR 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 STM32W108CCU74TR?
For technical support, including STM32W108CCU74TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32W108CCU74TR requirements.
6.How does Aetrix verify that STM32W108CCU74TR is sourced from the original manufacturer or authorized distributors?
All STM32W108CCU74TR 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 STM32W108CCU74TR meets industry standards.
7.What is the process for return or replacement of STM32W108CCU74TR?
All STM32W108CCU74TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32W108CCU74TR, 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 STM32W108CCU74TR part is unused and in its original packaging.
Return procedure for STM32W108CCU74TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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