STM32L562RET6 - 512KB Flash, 110MHz Cortex-M33 MCU | STMicroelectronics
MPN： STM32L562RET6 ✓ 啟用中STM32L562RET6 概覽
What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit containing a processor core, memory, and programmable input/output peripherals on a single chip. It is the brain of embedded systems, executing firmware to control devices such as sensors, motors, and displays. In the system hierarchy, a microcontroller is a type of embedded processor, which falls under the broader category of integrated circuits (ICs) and semiconductors. The STM32L562RET6 specifically combines high performance with ultra-low power consumption, making it suitable for battery-powered and energy-harvesting applications.
Key features include the Arm Cortex-M33 core with TrustZone for hardware-enforced security, a floating-point unit (FPU) for math-intensive tasks, and a rich set of peripherals including multiple UARTs, SPIs, I2Cs, USB, and an advanced 12-bit ADC. The device supports a wide supply voltage range of 1.71V to 3.6V and operates over a temperature range of -40°C to +85°C. It also features a low-power mode with current consumption as low as 100 nA in standby mode, extending battery life in portable devices.
Technically, the STM32L562RET6 is built on a 40nm process technology, enabling high performance with low leakage. The TrustZone security feature isolates critical code and data, protecting against software attacks. The device includes a hardware cryptographic accelerator supporting AES, RSA, and ECC, as well as a true random number generator (TRNG) for secure key generation. These features make it ideal for IoT devices requiring secure communication and data protection.
Typical applications include secure IoT nodes, smart meters, wearable health monitors, industrial sensors, and battery-powered medical devices. The combination of ultra-low power and security makes it a preferred choice for edge devices that must operate for years on a single battery while protecting sensitive data.
When designing with this MCU, ensure proper decoupling of the power supply pins with 100nF capacitors placed close to each VDD pin. The VDDA pin requires a separate 1uF capacitor for analog noise filtering. For low-power operation, configure the clock to use the low-speed internal oscillator (LSI) and enable the low-power modes in the firmware to achieve the specified standby current.
直接替換替代品，適用於 STM32L562RET6 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： STM32L562RET6 （相同外形與佔位） — 差異在於 ADC Resolution, Communication Interfaces, Core, Operating Temperature Range, Standby Current.
STM32L562RET6TR
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32L562RET6Q
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32L562RET6V
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32L552RET6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32L562REI6
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32L562RET6 最大額定值與電氣特性
| Core | Arm Cortex-M33 with TrustZone |
| 最大時脈頻率 | 110 MHz |
| Flash Memory | 512 KB |
| SRAM | 256 KB |
| 封裝 | 64-LQFP (10x10 mm) |
| Supply Voltage Range | 1.71 V to 3.6 V |
| 工作溫度範圍 | -40C to +85C |
| Standby Current | 100 nA |
| ADC Resolution | 12-bit |
| Communication Interfaces | UART, SPI, I2C, USB |
| Cryptographic Accelerator | AES, RSA, ECC |
| True Random Number Generator | Yes |
| Process Technology | 40 nm |
| RoHS 狀態 | Compliant |
STM32L562RET6 腳位配置
| 腳位 1 | VBAT — Battery backup supply |
| 腳位 2 | PC13 — GPIO / RTC output |
| 腳位 3 | PC14 — GPIO / OSC32_IN |
| 腳位 4 | PC15 — GPIO / OSC32_OUT |
| 腳位 5 | PF0 — GPIO |
| 腳位 6 | PF1 — GPIO |
| 腳位 7 | NRST — Reset |
| 腳位 8 | VDD — Digital power supply |
| 腳位 9 | VSS — Ground |
| 腳位 10 | VDDA — Analog power supply |
| 腳位 11 | PA0 — GPIO / ADC input |
| 腳位 12 | PA1 — GPIO / ADC input |
| 腳位 13 | PA2 — GPIO / USART2_TX |
| 腳位 14 | PA3 — GPIO / USART2_RX |
| 腳位 15 | PA4 — GPIO / SPI1_NSS |
| 腳位 16 | PA5 — GPIO / SPI1_SCK |
| 腳位 17 | PA6 — GPIO / SPI1_MISO |
| 腳位 18 | PA7 — GPIO / SPI1_MOSI |
| 腳位 19 | PA8 — GPIO / USB_OTG_FS_SOF |
| 腳位 20 | PA9 — GPIO / USART1_TX |
| 腳位 21 | PA10 — GPIO / USART1_RX |
| 腳位 22 | PA11 — GPIO / USB_DM |
| 腳位 23 | PA12 — GPIO / USB_DP |
| 腳位 24 | PA13 — GPIO / SWDIO |
| 腳位 25 | PA14 — GPIO / SWCLK |
| 腳位 26 | PA15 — GPIO / JTDI |
| 腳位 27 | PB0 — GPIO / ADC input |
| 腳位 28 | PB1 — GPIO / ADC input |
| 腳位 29 | PB2 — GPIO / BOOT1 |
| 腳位 30 | PB3 — GPIO / JTDO |
| 腳位 31 | PB4 — GPIO / NJTRST |
| 腳位 32 | PB5 — GPIO / I2C1_SMBA |
| 腳位 33 | PB6 — GPIO / I2C1_SCL |
| 腳位 34 | PB7 — GPIO / I2C1_SDA |
| 腳位 35 | PB8 — GPIO / I2C1_SCL |
| 腳位 36 | PB9 — GPIO / I2C1_SDA |
| 腳位 37 | PB10 — GPIO / I2C2_SCL |
| 腳位 38 | PB11 — GPIO / I2C2_SDA |
| 腳位 39 | PB12 — GPIO / SPI2_NSS |
| 腳位 40 | PB13 — GPIO / SPI2_SCK |
| 腳位 41 | PB14 — GPIO / SPI2_MISO |
| 腳位 42 | PB15 — GPIO / SPI2_MOSI |
| 腳位 43 | PC0 — GPIO / ADC input |
| 腳位 44 | PC1 — GPIO / ADC input |
| 腳位 45 | PC2 — GPIO / ADC input |
| 腳位 46 | PC3 — GPIO / ADC input |
| 腳位 47 | PC4 — GPIO / ADC input |
| 腳位 48 | PC5 — GPIO / ADC input |
| 腳位 49 | PC6 — GPIO / TIM3_CH1 |
| 腳位 50 | PC7 — GPIO / TIM3_CH2 |
| 腳位 51 | PC8 — GPIO / TIM3_CH3 |
| 腳位 52 | PC9 — GPIO / TIM3_CH4 |
| 腳位 53 | PC10 — GPIO / USART3_TX |
| 腳位 54 | PC11 — GPIO / USART3_RX |
| 腳位 55 | PC12 — GPIO / USART3_CK |
| 腳位 56 | PD0 — GPIO / OSC_IN |
| 腳位 57 | PD1 — GPIO / OSC_OUT |
| 腳位 58 | PD2 — GPIO / TIM1_ETR |
| 腳位 59 | PD3 — GPIO / USART2_CTS |
| 腳位 60 | PD4 — GPIO / USART2_RTS |
| 腳位 61 | PD5 — GPIO / USART2_TX |
| 腳位 62 | PD6 — GPIO / USART2_RX |
| 腳位 63 | PD7 — GPIO / USART2_CK |
| 腳位 64 | VDD — Digital power supply |
典型應用
STM32L562RET6 適用於 6 應用s: Secure IoT Nodes, Smart Meters, Wearable Health Monitors, Industrial Sensors, Battery-Powered Medical Devices, Smart Home Controllers.
Secure IoT Nodes
The STM32L562RET6 is ideal for secure IoT nodes due to its ultra-low power consumption, TrustZone security, and hardware cryptographic accelerator. These features enable secure communication and data protection in edge devices. In a typical IoT node, the MCU collects sensor data, encrypts it using the AES accelerator, and transmits it via a low-power wireless interface. The standby current of 100 nA ensures long battery life, while the Cortex-M33 core provides sufficient processing power for protocol stacks and edge processing. Designers should configure the low-power modes and use the RTC for periodic wake-ups to maximize battery life.
推薦
Smart Meters
The STM32L562RET6 is well-suited for smart meters, where accurate measurement, secure communication, and low power are essential. The 12-bit ADC provides precise analog measurements for current and voltage sensing, while the cryptographic accelerator ensures secure data transmission to the utility grid. The MCU's low-power modes allow it to operate on battery backup during power outages. In a typical smart meter, the STM32L562RET6 reads sensor data, processes it, and communicates via a wireless module. The TrustZone security isolates metering firmware from communication stacks, preventing tampering. Designers should use the internal RTC for time-stamping and schedule periodic data uploads to minimize power consumption.
推薦
Wearable Health Monitors
The STM32L562RET6 is an excellent choice for wearable health monitors, offering ultra-low power consumption and secure data handling. The MCU can process biometric signals from sensors like heart rate monitors and accelerometers, while the TrustZone security protects patient data. The 100 nA standby current allows the device to operate for extended periods on a small battery. In a typical wearable, the STM32L562RET6 collects sensor data, runs signal processing algorithms, and communicates via Bluetooth Low Energy. The FPU accelerates math-intensive operations like filtering and feature extraction. Designers should optimize the firmware to use the low-power modes and minimize active time to extend battery life.
推薦
Industrial Sensors
The STM32L562RET6 is suitable for industrial sensors that require reliable operation in harsh environments. The wide operating temperature range (-40°C to +85°C) and robust communication interfaces make it ideal for factory automation and process control. The MCU can interface with various industrial protocols like Modbus and CAN, while the cryptographic accelerator ensures secure data exchange. In a typical industrial sensor, the STM32L562RET6 reads analog signals, processes them, and transmits data over a fieldbus. The low-power modes reduce energy consumption in battery-powered wireless sensors. Designers should implement proper ESD protection and use the internal watchdog timer for system reliability.
推薦
Battery-Powered Medical Devices
The STM32L562RET6 is well-suited for battery-powered medical devices, offering ultra-low power consumption and advanced security features. The MCU can handle complex algorithms for patient monitoring while maintaining data integrity through TrustZone. The 100 nA standby current is critical for devices that must operate for months or years on a single battery. In a typical medical device, the STM32L562RET6 processes sensor data, stores it in flash, and communicates with a base station. The cryptographic accelerator ensures secure data transmission, complying with healthcare regulations. Designers should use the low-power modes and implement a robust power management strategy to maximize battery life.
推薦
Smart Home Controllers
The STM32L562RET6 is an ideal choice for smart home controllers, providing secure and efficient management of connected devices. The MCU can handle multiple communication protocols like Zigbee, Z-Wave, and Wi-Fi, while the TrustZone security protects the home network from cyber threats. The low-power modes allow the controller to operate on battery backup during power outages. In a typical smart home hub, the STM32L562RET6 manages device communication, runs automation rules, and provides a user interface. The cryptographic accelerator ensures secure communication with cloud services. Designers should use the internal RTC for scheduling and implement over-the-air firmware updates for security patches.
推薦
推薦產品摘要
工程參考資料，適用於 STM32L562RET6 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | STM32L562RET6TR | STM32L562RET6Q | STM32L562RET6V | STM32L552RET6 | STM32L562REI6 |
|---|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | Arm Cortex-M33 with TrustZone | Arm Cortex-M33 with TrustZone | Arm Cortex-M33 with TrustZone | Arm Cortex-M33 with TrustZone | Arm Cortex-M33 with TrustZone | Arm Cortex-M33 with TrustZone |
| Maximum Clock Frequency | 110 MHz | 110 MHz | 110 MHz | 110 MHz | 110 MHz | 110 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| Supply Voltage Range | 1.71V to 3.6V | 1.71V to 3.6V | 1.71V to 3.6V | 1.71V to 3.6V | 1.71V to 3.6V | 1.71V to 3.6V |
| Standby Current | 100 nA | 100 nA | 100 nA | 100 nA | 100 nA | 100 nA |
主要差異化特點
- TrustZone security (對比STM32L552RET6)
- Hardware cryptographic accelerator (對比STM32L552RET6)
- True random number generator (TRNG) (對比STM32L552RET6)
設計說明
For optimal power consumption, use the low-power modes (Sleep, Stop, Standby) and configure the clock to use the low-speed internal oscillator (LSI) when high precision is not required. The standby current of 100 nA is achievable only when all peripherals are disabled and the RTC is powered by VBAT. Ensure that the firmware properly configures the power control registers to enter the desired low-power mode.
Place 100nF decoupling capacitors close to each VDD pin and a 1uF capacitor on the VDDA pin for analog noise filtering. Use a ground plane to minimize noise and ensure proper return paths for high-speed signals. For USB applications, route the USB_DM and USB_DP traces as a differential pair with controlled impedance.
Ensure that the BOOT0 pin is properly configured to select the correct boot mode. For secure applications, enable TrustZone early in the firmware development to isolate critical code. Avoid exceeding the absolute maximum ratings for supply voltage and I/O pins, as this can damage the device. Use the internal watchdog timer to prevent system hangs in industrial environments.
合規資訊
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified - this is a general-purpose MCU, not an automotive-grade part.
