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STMicroelectronics STM32WLE5CCU7
- Part No.:
- STM32WLE5CCU7
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32WLE5CCU7.pdf
- Description:
- IC RF TXRX+MCU ISM<1GHZ 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,458
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Product details
Overview
STM32WLE5CCU7 from STMicroelectronics is a multiprotocol LPWAN 32-bit Arm® Cortex®-M4 microcontroller integrating LoRa®, (G)FSK, (G)MSK, and BPSK radio transceivers, 256 KB flash, 64 KB SRAM, and hardware AES-256 encryption. It operates from 150–960 MHz with –148 dBm LoRa® RX sensitivity (SF12, 10.4 kHz) and +22 dBm programmable TX output, targeting battery-powered IoT sensor nodes in smart metering and asset tracking.
For engineers reviewing the STM32WLE5CCU7 datasheet, STM32WLE5CCU7 pinout, STM32WLE5CCU7 application, or STM32WLE5CCU7 equivalent, key selection criteria include sub-GHz RF performance compliance (ETSI EN 300 220, FCC Part 15), ultra-low-power modes (31 nA shutdown), integrated SMPS, and dual-core secure boot support for LoRaWAN® and W-MBus deployments.
Technical Context
The STM32WLE5CCU7 integrates a single Arm Cortex-M4 core with ART Accelerator enabling zero-wait-state execution at up to 48 MHz, alongside a fully integrated sub-GHz transceiver supporting LoRa®, FSK, MSK, and BPSK modulation schemes. Its RF front-end includes dedicated RF-PLL, configurable IF stages, and support for external IPD matching networks optimized per frequency band (e.g., 915 MHz @ 22 dBm).
Power management combines an embedded SMPS step-down converter, LDO smart switch, and five brownout reset thresholds - enabling operation across –40 °C to +105 °C while maintaining 360 nA standby (+ RTC) and 1.07 µA Stop2 (+ RTC) current draw. The device supports OTA firmware updates and sector-level PCROP/WP protection for secure code execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 @ 48 MHz with DSP/MPU instructions and ART Accelerator for zero-wait-state flash execution |
| Radio Frequency Range | 150–960 MHz - covers global ISM bands including 433 MHz (EU), 868 MHz (EU), 915 MHz (US), and 490 MHz (CN) |
| LoRa® RX Sensitivity | –148 dBm at 10.4 kHz bandwidth, SF12 - enables long-range, low-data-rate communication in noisy environments |
| TX Output Power | Programmable up to +22 dBm (high power) or +15 dBm (low power) - balances link budget and battery life |
| Ultra-Low-Power Modes | 31 nA shutdown, 360 nA standby (+ RTC), 1.07 µA Stop2 (+ RTC) - extends 10+ year battery life in periodic wake-up applications |
| Memory | 256 KB flash (with PCROP/WP), 64 KB SRAM, 20×32-bit backup registers - supports secure OTA updates and data retention during deep sleep |
| Security | AES-256 hardware accelerator, PKA, TRNG, 64-bit UID, 96-bit die ID - meets LoRaWAN® Class C and industrial security requirements |
Pinout & Package
STM32WLE5CCU7 is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), with dedicated RFIO pins (RFIO_HF, RFIO_LF), VDDRF/VSSRF power domains, and dual antenna interface support via integrated balun-compatible routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RFIO_HF | High-frequency RF I/O | Primary antenna port for 863–928 MHz operation; requires external matching network or IPD |
| RFIO_LF | Low-frequency RF I/O | Secondary antenna port for 150–525 MHz; enables dual-band or diversity antenna configurations |
| VDDRF / VSSRF | RF power supply domain | Independent analog rail decoupled from digital VDD - critical for RF noise isolation and ETSI/FCC compliance |
| OSC_IN / OSC_OUT | 32 MHz crystal oscillator interface | Supports high-precision timing for LoRa® symbol synchronization and frequency stability ±10 ppm |
| RTC_OUT | 32.768 kHz RTC clock output | Drives external RTC crystal or provides calibrated timebase for low-power wake-up scheduling |
Key Features
| Feature | Design Value |
|---|---|
| Multiprotocol Radio Engine | Single-chip LoRa®, (G)FSK, (G)MSK, BPSK support - eliminates external transceiver and reduces BOM cost in multi-standard gateways |
| Integrated SMPS + LDO Switch | Embedded buck converter with automatic LDO fallback - improves system efficiency by >30% vs. discrete LDO-only solutions at 3.3 V input |
| Hardware Security Subsystem | Dedicated AES-256, PKA, TRNG, and memory protection (PCROP/RDP/WRP) - enables root-of-trust boot and secure key storage without external SE |
| Sub-GHz Regulatory Compliance | Built-in support for ETSI EN 300 220, FCC Part 15/24/90, ARIB STD-T30/T-67 - accelerates regional certification for end equipment |
| OTA Firmware Update Ready | Bootloader with USART/SPI interfaces and dual-bank flash support - enables field upgrades without physical access or JTAG |
Applications
| Smart Utility Metering | Industrial Asset Tracking |
|---|---|
Use Scenario: Battery-powered gas/water meters transmitting hourly consumption data over 5–10 km rural LoRaWAN® networks. IC Role / Device Role / Timing Role: System-on-chip MCU + transceiver handling sensor acquisition, LoRa® PHY/MAC layer, secure key management, and RTC-scheduled transmissions. Use Value: 15-year battery life enabled by 31 nA shutdown mode and +22 dBm TX output compensating for long-distance path loss. | Use Scenario: Ruggedized GPS trackers on shipping containers reporting location every 6 hours via private LoRa® network across port facilities. IC Role / Device Role / Timing Role: Dual-band RF interface (RFIO_HF/LF) managing adaptive frequency hopping between 868 MHz and 490 MHz to avoid interference in dense RF environments. Use Value: Integrated IPD compatibility ensures matched 17 dBm @ 490 MHz and 22 dBm @ 915 MHz outputs without custom RF layout. |
| Wireless Sensor Network Node | Smart Agriculture Monitoring |
Use Scenario: Soil moisture/temperature node deployed in remote fields, waking every 15 minutes to sample ADC and transmit via (G)FSK to local gateway. IC Role / Device Role / Timing Role: Ultra-low-power subsystem controller executing sensor readout, oversampled 12-bit ADC conversion, and burst-mode (G)FSK transmission. Use Value: 4.82 mA active RX current and 15 mA TX @ 10 dBm minimize energy per packet, extending battery life beyond 5 years. | Use Scenario: Solar-powered weather station measuring rainfall, wind speed, and ambient humidity, using LoRa® to relay data to farm management cloud. IC Role / Device Role / Timing Role: Secure edge processor running LoRaWAN® Class A stack, AES-encrypted payload generation, and VBAT-backed RTC for precise duty-cycling. Use Value: Hardware PKA accelerates ECC-based join-request signing, reducing join time by 65% vs. software-only implementation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LPWAN SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SX1262IMLTRT | Standalone LoRa® transceiver (no MCU); requires external host processor and flash memory | Lacks integrated Cortex-M4, crypto, or power management - suitable only when existing MCU handles protocol stack | Select when migrating legacy designs with separate MCU + radio architecture and needing higher RF sensitivity (–148 dBm same, but better phase noise) |
| STM32WL55JC | Same RF engine and Cortex-M4 core, but UFBGA73 package (5 × 5 mm), 192 KB flash, no SMPS | Smaller footprint and lower RF output (+20 dBm max); lacks integrated SMPS - requires external DC/DC | Select for space-constrained PCBs where 256 KB flash and SMPS are not required, and thermal dissipation allows UFBGA |
Compared with SX1262IMLTRT and STM32WL55JC, the STM32WLE5CCU7 uniquely delivers full LPWAN SoC integration - combining LoRa®/FSK radio, M4 core, SMPS, and hardware security in one UFQFPN48 package - reducing bill-of-materials count by ≥4 components and eliminating external RF matching design effort.
Availability
STM32WLE5CCU7 is available at Aetrix Electronics and suitable for smart utility metering, industrial asset tracking, wireless sensor networks, and smart agriculture monitoring requiring stable component supply across extended product lifecycles.
Supply support for STM32WLE5CCU7 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, power devices, and sensors for industrial, automotive, and IoT markets.
The STM32WLE5xx series belongs to ST's LPWAN-optimized wireless MCU product line, engineered specifically to unify sub-GHz radio functionality, ultra-low-power processing, and hardware security in a single chip for certified LoRaWAN® and proprietary protocol deployments.
FAQ
What regulatory certifications does the STM32WLE5CCU7 support out of the box?
The STM32WLE5CCU7 is designed to meet ETSI EN 300 220 (Europe), FCC CFR 47 Parts 15, 24, and 90 (USA), and ARIB STD-T30/T-67/T-108 (Japan) without requiring additional RF filtering or shielding. Its integrated RF-PLL, calibrated TX power control, and documented IPD reference designs enable direct use in certified end products when following ST's layout guidelines and antenna recommendations.
Does the STM32WLE5CCU7 support over-the-air (OTA) firmware updates?
Yes - the STM32WLE5CCU7 includes a factory-programmed bootloader supporting UART and SPI interfaces, dual-bank flash memory with PCROP protection, and hardware AES-256 acceleration for encrypted payload decryption. This enables secure, robust OTA updates compliant with LoRaWAN® Class C and proprietary firmware distribution protocols without external memory or debug interface dependency.
How does the integrated SMPS improve power efficiency compared to traditional LDO-based designs?
The embedded SMPS achieves >85% efficiency across 1.8–3.6 V input range and load currents from 10 µA to 200 mA, reducing average power consumption by 30–50% versus discrete LDO solutions - especially critical in battery-powered applications where 3.3 V coin cells or Li-SOCl₂ batteries operate near end-of-life voltage (2.0–2.5 V). Automatic SMPS-to-LDO switching maintains regulation during transient loads.
Can the STM32WLE5CCU7 operate in both LoRa® and (G)FSK modes simultaneously?
No - the STM32WLE5CCU7 uses a single shared RF front-end and cannot transmit or receive on LoRa® and (G)FSK simultaneously. However, it supports rapid mode switching (< 100 µs) between modulation schemes under software control, enabling hybrid protocols like W-MBus (FSK) and LoRaWAN® (LoRa®) on the same device with dynamic runtime selection based on network requirements or channel conditions.
STM32WLE5CCU7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 48-UFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- General ISM < 1GHz
- Protocol:
- LoRa, LoRaWAN 1.0, Sigfox
- Modulation:
- BPSK, FSK, GFSK, GMSK, MSK
- Frequency:
- 150MHz ~ 960MHz
- Data Rate (Max):
- 300kbps
- Power - Output:
- 22dBm
- Sensitivity:
- -148dBm
- Memory Size:
- 256kB Flash
- Serial Interfaces:
- ADC, GPIO, I2C, I2S, IrDA, JTAG, PWM, SPI, UART, USART
- GPIO:
- 29
- Voltage - Supply:
- 1.8V ~ 3.6V
- Current - Receiving:
- 4.82mA
- Current - Transmitting:
- 21mA ~ 120mA
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-UFQFPN (7x7)
STM32WLE5CCU7 FAQ
1.How can I place an order for STM32WLE5CCU7 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32WLE5CCU7 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 STM32WLE5CCU7 reliable?
The price and inventory of STM32WLE5CCU7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32WLE5CCU7 is usually 5 days.
3.What payment methods are accepted for STM32WLE5CCU7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32WLE5CCU7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32WLE5CCU7?
STM32WLE5CCU7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32WLE5CCU7 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 STM32WLE5CCU7?
For technical support, including STM32WLE5CCU7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32WLE5CCU7 requirements.
6.How does Aetrix verify that STM32WLE5CCU7 is sourced from the original manufacturer or authorized distributors?
All STM32WLE5CCU7 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 STM32WLE5CCU7 meets industry standards.
7.What is the process for return or replacement of STM32WLE5CCU7?
All STM32WLE5CCU7 units undergo pre-shipment inspection (PSI). If there is an issue with STM32WLE5CCU7, 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 STM32WLE5CCU7 part is unused and in its original packaging.
Return procedure for STM32WLE5CCU7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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