STMicroelectronics

STM32WL55CCU6 - Dual-core Arm Cortex-M4/M0+ LoRa SoC | STMicroelectronics

Артикул: STM32WL55CCU6 ✓ Активен
В наличии Отправка в течение 1–3 рабочих дней
1.8 V to 3.6 V Vdss 1.62 uA (with RTC) Id UFQFPN-48 (7x7 mm) Package 48 MHz Speed 256 KB Memory
От $5.6 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-08-11
Оптовые цены
Кол-во Цена за ед. Итого
1 $8.75 $8,75
10 $7.92 $79,20
100 $6.98 $698,00
500 $6.25 $3.125,00
1.000 $5.6 $5.600,00
ℹ️ Все цены указаны в USD

STM32WL55CCU6 Обзор

The STMicroelectronics STM32WL55CCU6 is a wireless system-on-chip (SoC) that integrates a dual-core Arm Cortex-M4 and Cortex-M0+ processor with a sub-GHz radio supporting LoRa, (G)FSK, (G)MSK, and BPSK modulations. It is housed in a 48-pin UFQFPN package (7x7 mm) and operates over a supply voltage range of 1.8V to 3.6V. The device features 256 KB of flash memory and 64 KB of SRAM, making it suitable for battery-powered IoT applications.

A wireless MCU is a microcontroller that integrates a radio transceiver on the same chip, enabling wireless communication without external RF components. The STM32WL55CCU6 belongs to the STM32WL series, which is part of the broader STM32 family of 32-bit microcontrollers. This SoC combines the processing power of an Arm Cortex-M4 core with the energy efficiency of a Cortex-M0+ core, allowing for flexible task partitioning and low-power operation.

Key features include a maximum CPU frequency of 48 MHz for both cores, a sub-GHz radio with sensitivity down to -137 dBm (LoRa), and support for LoRaWAN and Sigfox protocols. The device also includes a rich set of peripherals such as 12-bit ADC, DAC, comparators, timers, SPI, I2C, USART, and a random number generator. The integrated radio eliminates the need for an external transceiver, reducing BOM cost and PCB area.

The STM32WL55CCU6 is built on ST's low-power process technology, offering multiple low-power modes including Sleep, Stop, and Standby, with current consumption as low as 1.62 uA in Standby mode with RTC. The dual-core architecture allows the Cortex-M0+ to handle radio communication while the Cortex-M4 runs application code, optimizing power and performance.

Typical applications include smart agriculture sensors, smart metering, asset tracking, smart city infrastructure, and industrial monitoring. The sub-GHz radio provides long-range communication with low power consumption, making it ideal for battery-operated devices that need to transmit data over kilometers.

When designing with this device, ensure proper antenna matching and RF layout to achieve optimal radio performance. The device supports a wide operating temperature range of -40C to +85C, suitable for outdoor and industrial environments.

Аналоги без доработки для STM32WL55CCU6 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Варианты в этой серии

Модели той же серии, совместимые без доработки с STM32WL55CCU6 (тот же форм-фактор и посадочное место) — отличается по Core, Package.

STMicroelectronics
Core: Dual-core Arm Cortex-M4 (64 MHz) + Cortex-M0+ (48 MHz)
Package: UFBGA-73 (7x7 mm)
Сравнить с STM32WL55CCU6 →

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

STM32WL55JCI6

✅ Прямая замена ⚠️ Характеристики не проверены
STMicroelectronics
📦 UFQFPN-48 (7x7 mm)
Dual-core Arm Cortex-M4 (64 MHz) + Cortex-M0+ (48 MHz) · 256 KB · 64 KB · 150 MHz to 960 MHz · LoRa, (G)FSK, (G)MSK, BPSK · LoRaWAN 1.0, Sigfox, 802.15.4 · -137 dBm · +22 dBm

✓ В наличии

$7.25 / шт.

Открыть даташит →

STM32WL55CCV6

✅ Прямая замена ⚠️ Характеристики не проверены
📦 UFQFPN-48 (7x7 mm)
Same package and pinout, same flash and SRAM, same dual-core

📋 Справочный аналог (нет в каталоге)

STM32WL55CCU7

✅ Прямая замена ⚠️ Характеристики не проверены
📦 UFQFPN-48 (7x7 mm)
Same package and pinout, higher max CPU frequency (64 MHz vs 48 MHz)

📋 Справочный аналог (нет в каталоге)

STM32WL54CCU6

✅ Прямая замена ⚠️ Характеристики не проверены
📦 UFQFPN-48 (7x7 mm)
Same package and pinout, single-core Cortex-M0+ only, same radio

📋 Справочный аналог (нет в каталоге)

STM32WL55CCU6TR

✅ Прямая замена ⚠️ Характеристики не проверены
📦 UFQFPN-48 (7x7 mm)
Same package and pinout, tape and reel packaging variant

📋 Справочный аналог (нет в каталоге)

STM32WL55CCU6 Максимальные параметры и электрические характеристики

Core Arm Cortex-M4 + Cortex-M0+
Max CPU Frequency 48 MHz
Flash Memory 256 KB
SRAM 64 KB
Radio Modulation LoRa, (G)FSK, (G)MSK, BPSK
Radio Sensitivity -137 dBm (LoRa)
Напряжение питания 1.8 V to 3.6 V
Корпус UFQFPN-48 (7x7 mm)
Рабочая температура -40C to +85C
ADC 12-bit, 1 MSPS
DAC 12-bit
Timers Advanced-control, general-purpose, basic
Communication Interfaces SPI, I2C, USART, LPUART
Low Power Modes Sleep, Stop, Standby
Standby Current 1.62 uA (with RTC)
Статус RoHS Compliant

Конфигурация выводов STM32WL55CCU6

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Контакт 1 VDD — Power supply
Контакт 2 PA0 — GPIO / ADC input
Контакт 3 PA1 — GPIO / ADC input
Контакт 4 PA2 — GPIO / USART2_TX
Контакт 5 PA3 — GPIO / USART2_RX
Контакт 6 PA4 — GPIO / SPI1_NSS
Контакт 7 PA5 — GPIO / SPI1_SCK
Контакт 8 PA6 — GPIO / SPI1_MISO
Контакт 9 PA7 — GPIO / SPI1_MOSI
Контакт 10 PA8 — GPIO / MCO
Контакт 11 PA9 — GPIO / USART1_TX
Контакт 12 PA10 — GPIO / USART1_RX
Контакт 13 PA11 — GPIO / USB_DM
Контакт 14 PA12 — GPIO / USB_DP
Контакт 15 PA13 — GPIO / SWDIO
Контакт 16 PA14 — GPIO / SWCLK
Контакт 17 PA15 — GPIO / JTDI
Контакт 18 PB0 — GPIO / ADC input
Контакт 19 PB1 — GPIO / ADC input
Контакт 20 PB2 — GPIO / BOOT1
Контакт 21 PB3 — GPIO / JTDO
Контакт 22 PB4 — GPIO / NJTRST
Контакт 23 PB5 — GPIO / I2C1_SMBA
Контакт 24 PB6 — GPIO / I2C1_SCL
Контакт 25 PB7 — GPIO / I2C1_SDA
Контакт 26 PB8 — GPIO / I2C1_SCL
Контакт 27 PB9 — GPIO / I2C1_SDA
Контакт 28 PB10 — GPIO / I2C2_SCL
Контакт 29 PB11 — GPIO / I2C2_SDA
Контакт 30 PB12 — GPIO / SPI2_NSS
Контакт 31 PB13 — GPIO / SPI2_SCK
Контакт 32 PB14 — GPIO / SPI2_MISO
Контакт 33 PB15 — GPIO / SPI2_MOSI
Контакт 34 PC13 — GPIO / RTC_TAMP1
Контакт 35 PC14 — GPIO / OSC32_IN
Контакт 36 PC15 — GPIO / OSC32_OUT
Контакт 37 PH0 — OSC_IN
Контакт 38 PH1 — OSC_OUT
Контакт 39 NRST — Reset
Контакт 40 VDD — Power supply
Контакт 41 VSS — Ground
Контакт 42 VDDA — Analog power supply
Контакт 43 VSSA — Analog ground
Контакт 44 VREF+ — ADC reference voltage
Контакт 45 VREF- — ADC reference ground
Контакт 46 RF — RF input/output
Контакт 47 GND — Ground
Контакт 48 GND — Ground

Типичное применение

STM32WL55CCU6 подходит для 6 применениеs: Smart Agriculture, Smart Metering, Asset Tracking, Smart City, Industrial Monitoring, Smart Home.

🌾

Smart Agriculture

The STM32WL55CCU6 is ideal for smart agriculture applications such as soil moisture monitoring, weather stations, and crop health sensors. Its sub-GHz LoRa radio provides long-range communication (up to several kilometers) with low power consumption, enabling battery-powered sensors to transmit data to a central gateway. The dual-core architecture allows the Cortex-M0+ to handle radio communication while the Cortex-M4 processes sensor data, optimizing power and performance. The device's low-power modes, including Standby with 1.62 uA current, extend battery life in remote field deployments. The wide operating temperature range (-40C to +85C) ensures reliable operation in outdoor environments. The integrated ADC and communication interfaces (SPI, I2C, USART) simplify interfacing with various sensors such as temperature, humidity, and soil moisture probes. The STM32WL55CCU6's support for LoRaWAN protocol enables seamless integration with existing IoT platforms, making it a cost-effective solution for precision agriculture.

⚡

Smart Metering

The STM32WL55CCU6 is well-suited for smart metering applications such as electricity, water, and gas meters. Its integrated sub-GHz radio enables reliable communication with utility networks over long distances, while the low-power design ensures long battery life (up to 10+ years). The dual-core architecture allows the Cortex-M0+ to handle radio protocol stack while the Cortex-M4 runs metering algorithms and data processing. The device's multiple communication interfaces (SPI, I2C, USART) facilitate connection to metering sensors and displays. The STM32WL55CCU6 supports LoRaWAN and Sigfox protocols, making it compatible with major IoT networks. The wide supply voltage range (1.8V to 3.6V) accommodates various battery configurations. The device's robust security features, including a random number generator and hardware encryption, ensure data integrity and privacy. The UFQFPN-48 package is compact, allowing for small form factor meter designs.

📦

Asset Tracking

The STM32WL55CCU6 is ideal for asset tracking applications, providing long-range, low-power wireless connectivity for tracking goods, vehicles, and equipment. Its sub-GHz radio with -137 dBm sensitivity ensures reliable communication in challenging environments, such as warehouses and outdoor areas. The device's low-power modes enable battery-powered trackers to operate for months or years without recharging. The dual-core architecture allows the Cortex-M0+ to handle radio communication while the Cortex-M4 processes GPS or sensor data. The STM32WL55CCU6 supports LoRaWAN, which is widely used in asset tracking networks. The device's small UFQFPN-48 package and integrated radio reduce PCB size and BOM cost. The wide operating temperature range (-40C to +85C) makes it suitable for tracking assets in extreme conditions. The device's multiple timers and ADC enable precise time-stamping and sensor data acquisition.

🏙️

Smart City

The STM32WL55CCU6 is a key component in smart city applications such as smart lighting, waste management, and environmental monitoring. Its sub-GHz radio provides long-range communication for city-wide IoT networks, while the low-power design ensures minimal maintenance. The dual-core architecture allows efficient handling of sensor data and radio communication. The device's support for LoRaWAN enables easy integration with smart city platforms. The STM32WL55CCU6's multiple communication interfaces (SPI, I2C, USART) allow connection to various sensors and actuators. The device's wide operating temperature range (-40C to +85C) ensures reliable operation in outdoor urban environments. The integrated ADC and DAC enable analog sensor interfacing and control. The UFQFPN-48 package is compact, suitable for installation in streetlights, waste bins, and environmental monitoring stations. The device's low-power modes extend battery life in solar-powered or battery-operated installations.

🏭

Industrial Monitoring

The STM32WL55CCU6 is suitable for industrial monitoring applications such as predictive maintenance, process control, and equipment health monitoring. Its sub-GHz radio enables wireless communication in industrial environments where Wi-Fi or Bluetooth may be unreliable. The device's dual-core architecture allows the Cortex-M0+ to handle radio communication while the Cortex-M4 runs real-time control algorithms. The STM32WL55CCU6's robust design, with a wide operating temperature range (-40C to +85C), ensures reliable operation in harsh industrial conditions. The device's multiple timers and ADC enable precise measurement of vibration, temperature, and pressure. The integrated communication interfaces (SPI, I2C, USART) allow connection to industrial sensors and actuators. The device's low-power modes reduce energy consumption in battery-powered monitoring nodes. The STM32WL55CCU6 supports LoRaWAN, which is increasingly used in industrial IoT networks for long-range, low-power communication.

🏠

Smart Home

The STM32WL55CCU6 can be used in smart home applications such as smart locks, environmental sensors, and home automation gateways. Its sub-GHz radio provides long-range communication within a home, and its low-power design allows battery-powered devices to operate for years. The dual-core architecture enables efficient handling of sensor data and radio communication. The device's support for LoRaWAN and Sigfox protocols allows integration with smart home ecosystems. The STM32WL55CCU6's multiple communication interfaces (SPI, I2C, USART) facilitate connection to sensors, actuators, and displays. The device's small UFQFPN-48 package is suitable for compact smart home devices. The wide supply voltage range (1.8V to 3.6V) accommodates various battery configurations. The device's low-power modes, including Standby with 1.62 uA, extend battery life in devices that are mostly in sleep mode. The integrated ADC and DAC enable analog sensor interfacing and control.

Сводка рекомендуемых товаров

SX1276 External LoRa transceiver (alternative to integrated radio) Используется в: Smart Agriculture BME280 Environmental sensor for temperature, humidity, pressure Используется в: Smart Agriculture RN2483 LoRaWAN module (alternative to integrated radio) Используется в: Smart Metering MAX31865 RTD temperature sensor interface for metering Используется в: Smart Metering u-blox MAX-M8 GPS/GNSS module for location tracking Используется в: Asset Tracking LIS3DH Accelerometer for motion detection Используется в: Asset Tracking SX1272 LoRa transceiver (alternative to integrated radio) Используется в: Smart City SHT31 Temperature and humidity sensor for environmental monitoring Используется в: Smart City ADXL345 Accelerometer for vibration monitoring Используется в: Industrial Monitoring MCP9808 Temperature sensor for equipment monitoring Используется в: Industrial Monitoring CC1101 Sub-GHz transceiver (alternative to integrated radio) Используется в: Smart Home DHT22 Temperature and humidity sensor for home automation Используется в: Smart Home
What is the STM32WL55CCU6?
The STM32WL55CCU6 is a wireless system-on-chip (SoC) from STMicroelectronics that integrates a dual-core Arm Cortex-M4 and Cortex-M0+ processor with a sub-GHz radio supporting LoRa, (G)FSK, (G)MSK, and BPSK modulations. It is designed for long-range, low-power IoT applications.
What is the maximum CPU frequency of STM32WL55CCU6?
The STM32WL55CCU6 operates at a maximum CPU frequency of 48 MHz for both the Cortex-M4 and Cortex-M0+ cores. This allows efficient processing of application code and radio communication tasks.
How much flash memory does STM32WL55CCU6 have?
The STM32WL55CCU6 has 256 KB of flash memory and 64 KB of SRAM. This provides ample storage for application code and data in IoT devices.
What radio modulations are supported by STM32WL55CCU6?
The STM32WL55CCU6 supports LoRa, (G)FSK, (G)MSK, and BPSK modulations. This flexibility allows it to be used in various wireless protocols such as LoRaWAN and Sigfox.
What is the radio sensitivity of STM32WL55CCU6?
The STM32WL55CCU6 achieves a radio sensitivity of -137 dBm in LoRa mode, enabling reliable communication over long distances with low power consumption.
What is the supply voltage range of STM32WL55CCU6?
The STM32WL55CCU6 operates over a supply voltage range of 1.8V to 3.6V, making it suitable for battery-powered applications.
What package is STM32WL55CCU6 available in?
The STM32WL55CCU6 is available in a 48-pin UFQFPN package (7x7 mm), which is a surface-mount package suitable for compact PCB designs.
What is the operating temperature range of STM32WL55CCU6?
The STM32WL55CCU6 operates over a temperature range of -40C to +85C, making it suitable for industrial and outdoor applications.
What low-power modes does STM32WL55CCU6 support?
The STM32WL55CCU6 supports Sleep, Stop, and Standby low-power modes. In Standby mode with RTC, the current consumption is as low as 1.62 uA, extending battery life.
What communication interfaces are available on STM32WL55CCU6?
The STM32WL55CCU6 includes SPI, I2C, USART, and LPUART interfaces, providing flexible connectivity to sensors, displays, and other peripherals.
Is STM32WL55CCU6 suitable for LoRaWAN applications?
Yes, the STM32WL55CCU6 is designed for LoRaWAN applications. Its integrated LoRa radio and low-power features make it ideal for battery-powered end devices in LoRaWAN networks.
What is the price of STM32WL55CCU6?
As of 2026-08-09, the price of STM32WL55CCU6 is approximately $8.75 for single-unit quantities, decreasing to $5.60 at 1000 units, based on distributor data.
Where can I buy STM32WL55CCU6?
STM32WL55CCU6 can be purchased from authorized distributors such as DigiKey and Mouser. Check their websites for current stock and pricing.
What is the lead time for STM32WL55CCU6?
The lead time for STM32WL55CCU6 varies by distributor and order quantity. Typically, it ranges from 1 to 4 weeks, but it is recommended to check with the distributor for current lead times.
What is the difference between STM32WL55CCU6 and STM32WL54CCU6?
The STM32WL55CCU6 and STM32WL54CCU6 are similar, but the STM32WL55CCU6 includes a Cortex-M4 core, while the STM32WL54CCU6 has only a Cortex-M0+ core. The STM32WL55CCU6 offers higher processing capability for complex applications.
Can STM32WL55CCU6 be used for smart agriculture?
Yes, the STM32WL55CCU6 is well-suited for smart agriculture applications such as soil moisture monitoring and weather stations. Its long-range LoRa radio and low power consumption enable battery-powered sensors to transmit data over long distances.
What is the best drop-in replacement for STM32WL55CCU6?
The best drop-in replacement for STM32WL55CCU6 is the STM32WL55JCI6, which is pin-compatible and offers the same dual-core architecture and radio features. Other alternatives include STM32WL55CCV6 and STM32WL55CCU7, but verify pin compatibility before use.
Where can I download the STM32WL55CCU6 datasheet PDF?
The STM32WL55CCU6 datasheet PDF can be downloaded from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/stm32wl55cc.pdf.
What are the key specifications of STM32WL55CCU6 that engineers should know?
Engineers should know that the STM32WL55CCU6 features a dual-core Arm Cortex-M4/M0+ at 48 MHz, 256 KB flash, 64 KB SRAM, a sub-GHz radio with -137 dBm sensitivity, and a supply voltage range of 1.8V to 3.6V. It supports LoRa, (G)FSK, (G)MSK, and BPSK modulations, and is available in a UFQFPN-48 package.
Is STM32WL55CCU6 the same as STM32WL55CCU7?
No, the STM32WL55CCU6 and STM32WL55CCU7 are not the same. The STM32WL55CCU7 has a higher maximum CPU frequency of 64 MHz, while the STM32WL55CCU6 operates at 48 MHz. They are pin-compatible but differ in performance.
What is the best STMicroelectronics equivalent for STM32WL55CCU6?
The best STMicroelectronics equivalent for STM32WL55CCU6 is the STM32WL55JCI6, which is pin-compatible and offers the same dual-core architecture and radio features. It is a drop-in replacement with identical package and pinout.

Справочные инженерные данные для STM32WL55CCU6 — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the STM32WL55CCU6 when you need a dual-core wireless MCU with integrated LoRa radio for long-range, low-power IoT applications. It is ideal for battery-powered devices that require efficient processing and reliable communication. If you need higher processing speed, consider the STM32WL55CCU7, which operates at 64 MHz. If you do not need the Cortex-M4 core, the STM32WL54CCU6 offers a lower-cost single-core alternative. All alternatives share the same UFQFPN-48 package and pinout, allowing PCB layout reuse.

Сравнение с аналогами

Параметр Этот товар STM32WL55JCI6 STM32WL55CCV6 STM32WL55CCU7 STM32WL54CCU6
Package UFQFPN-48 (7x7 mm) UFQFPN-48 (7x7 mm) - same UFQFPN-48 (7x7 mm) - same UFQFPN-48 (7x7 mm) - same UFQFPN-48 (7x7 mm) - same
Brand STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Core Cortex-M4 + Cortex-M0+ Cortex-M4 + Cortex-M0+ Cortex-M4 + Cortex-M0+ Cortex-M4 + Cortex-M0+ Cortex-M0+ only
Max CPU Frequency 48 MHz 48 MHz 48 MHz 64 MHz 48 MHz
Flash Memory 256 KB 256 KB 256 KB 256 KB 256 KB
SRAM 64 KB 64 KB 64 KB 64 KB 64 KB
Radio Sensitivity -137 dBm (LoRa) -137 dBm (LoRa) -137 dBm (LoRa) -137 dBm (LoRa) -137 dBm (LoRa)
Supply Voltage 1.8V to 3.6V 1.8V to 3.6V 1.8V to 3.6V 1.8V to 3.6V 1.8V to 3.6V

Ключевые отличия

  • Integrated sub-GHz radio with LoRa support (против STM32WL54CCU6)
  • Dual-core architecture (против STM32WL54CCU6)
  • Higher maximum CPU frequency option (против STM32WL55CCU7)

Заметки по проектированию

For optimal radio performance, match the antenna impedance to 50 ohms and place the antenna away from noisy digital traces. Use a ground plane on the PCB and ensure proper decoupling of the RF supply pins. Refer to ST's application note AN5457 for detailed RF layout guidelines.

Decouple the VDD and VDDA pins with 100 nF ceramic capacitors placed as close as possible to the pins. Use a 4.7 uF bulk capacitor on the main supply. For battery-powered applications, consider using the low-power modes to extend battery life.

The UFQFPN-48 package has a thermal resistance of approximately 40 C/W (theta_JA). For high-power applications, ensure adequate copper area on the PCB to dissipate heat. The device's maximum junction temperature is 125C, so calculate power dissipation to avoid exceeding this limit.

Информация о соответствии

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Без свинца
Yes
Без галогенов
Unknown
Конфликтные минералы
Compliant

RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified.

Данные проверены: 2026-08-09 — данные проверены и курируются командой компонентной инженерии XAIPART
Источники: Distributor, Distributor, Distributor

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Связанные компоненты & термины

STMicroelectronics STM32WL55CCU6 STM32WL55JCI6 STM32WL55CCV6 STM32WL55CCU7 STM32WL54CCU6 Arm Cortex-M4 Arm Cortex-M0+ LoRa LoRaWAN Sigfox UFQFPN-48 sub-GHz radio IoT smart agriculture smart metering asset tracking smart city industrial monitoring smart home ADC DAC SPI I2C USART RoHS REACH
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