STM32U535RET6 - Ultra-Low-Power Cortex-M33 MCU | STMicroelectronics
MPN: STM32U535RET6 ✓ AktifSTM32U535RET6 Ringkasan
An ultra-low-power microcontroller (MCU) is a system-on-chip designed to minimize energy consumption while maintaining computational performance. These devices are the foundation of battery-operated embedded systems, such as wearables, IoT sensors, and medical monitors. The STM32U5 series sits at the top of ST's ultra-low-power portfolio, balancing the Cortex-M33 core's efficiency with advanced power-saving modes, including multiple low-power states and a flexible clock gating architecture.
Key features include the Arm TrustZone for hardware-enforced security, a 160 MHz Cortex-M33 core with FPU, 512 KB flash, 274 KB SRAM, and a rich set of peripherals. The device supports a wide supply voltage range and offers several low-power modes, including shutdown, standby, and stop modes, with wake-up times in the microsecond range. The LQFP-64 package provides a compact footprint while offering sufficient I/O for complex designs.
The STM32U535RET6 leverages ST's advanced 40 nm process technology, enabling a balance of performance and power efficiency. The Cortex-M33 core includes a Memory Protection Unit (MPU) and DSP instructions, enhancing both security and computational throughput. The integrated TrustZone isolates secure and non-secure code, making it ideal for applications requiring secure boot and firmware updates.
Typical applications include smart wearables, industrial sensors, medical devices, and IoT edge nodes. The ultra-low-power modes extend battery life in portable devices, while the security features protect sensitive data in connected systems. The device also supports a wide range of communication interfaces, including USART, SPI, I2C, and USB, enabling seamless integration into diverse systems.
When designing with this MCU, careful attention to the power supply decoupling and clock configuration is essential. Use a 1.8V to 3.6V supply with appropriate bypass capacitors, and configure the internal or external oscillator to meet the application's timing requirements. The device's low-power modes require proper configuration of the power management unit to achieve optimal energy savings.
Alternatif penggantian untuk STM32U535RET6 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
STM32U535RCT6
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
STM32U535RET7
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
STM32U535RCT7
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
STM32U575RET6
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
GD32F427RET6
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
STM32U535RET6 Rating Maksimal & Karakteristik Listrik
| Core | Arm Cortex-M33 with TrustZone and FPU |
| Frekuensi Bawah Maximum | 160 MHz |
| Flash Memory | 512 KB |
| SRAM | 274 KB |
| Lebar Bus Data | 32-bit |
| Paket | 64-LQFP (10x10 mm) |
| Rentang Suhu Kerja | -40°C to +85°C |
| Supply Voltage Range | 1.8V to 3.6V |
| Number of I/O Pins | 52 |
| DMA Channels | 16 |
| ADC Resolution | 12-bit |
| DAC Resolution | 12-bit |
| Communication Interfaces | USART, SPI, I2C, USB |
| Security | TrustZone, AES, RNG |
| Status RoHS | Compliant |
Konfigurasi Pin STM32U535RET6
| Pin produk 1 | VBAT — Battery backup supply |
| Pin produk 2 | PC14 — GPIO / OSC32_IN |
| Pin produk 3 | PC15 — GPIO / OSC32_OUT |
| Pin produk 4 | PF0 — GPIO / OSC_IN |
| Pin produk 5 | PF1 — GPIO / OSC_OUT |
| Pin produk 6 | NRST — Reset |
| Pin produk 7 | PC0 — GPIO / ADC |
| Pin produk 8 | PC1 — GPIO / ADC |
| Pin produk 9 | PC2 — GPIO / ADC |
| Pin produk 10 | PC3 — GPIO / ADC |
| Pin produk 11 | VDD — Power supply |
| Pin produk 12 | VSS — Ground |
| Pin produk 13 | PC4 — GPIO / ADC |
| Pin produk 14 | PC5 — GPIO / ADC |
| Pin produk 15 | PB0 — GPIO / ADC |
| Pin produk 16 | PB1 — GPIO / ADC |
| Pin produk 17 | PB2 — GPIO / BOOT1 |
| Pin produk 18 | PB10 — GPIO / I2C2_SCL |
| Pin produk 19 | PB11 — GPIO / I2C2_SDA |
| Pin produk 20 | VDD — Power supply |
| Pin produk 21 | VSS — Ground |
| Pin produk 22 | PB12 — GPIO / SPI2_NSS |
| Pin produk 23 | PB13 — GPIO / SPI2_SCK |
| Pin produk 24 | PB14 — GPIO / SPI2_MISO |
| Pin produk 25 | PB15 — GPIO / SPI2_MOSI |
| Pin produk 26 | PC6 — GPIO / TIM3_CH1 |
| Pin produk 27 | PC7 — GPIO / TIM3_CH2 |
| Pin produk 28 | PC8 — GPIO / TIM3_CH3 |
| Pin produk 29 | PC9 — GPIO / TIM3_CH4 |
| Pin produk 30 | PA0 — GPIO / ADC / WKUP |
| Pin produk 31 | PA1 — GPIO / ADC |
| Pin produk 32 | PA2 — GPIO / USART2_TX |
| Pin produk 33 | PA3 — GPIO / USART2_RX |
| Pin produk 34 | VDD — Power supply |
| Pin produk 35 | VSS — Ground |
| Pin produk 36 | PA4 — GPIO / DAC |
| Pin produk 37 | PA5 — GPIO / DAC |
| Pin produk 38 | PA6 — GPIO / SPI1_MISO |
| Pin produk 39 | PA7 — GPIO / SPI1_MOSI |
| Pin produk 40 | PC10 — GPIO / USART3_TX |
| Pin produk 41 | PC11 — GPIO / USART3_RX |
| Pin produk 42 | PC12 — GPIO / USART3_CK |
| Pin produk 43 | PD2 — GPIO / TIM3_ETR |
| Pin produk 44 | PB3 — GPIO / SPI1_SCK |
| Pin produk 45 | PB4 — GPIO / SPI1_NSS |
| Pin produk 46 | PB5 — GPIO / I2C1_SMBA |
| Pin produk 47 | PB6 — GPIO / I2C1_SCL |
| Pin produk 48 | PB7 — GPIO / I2C1_SDA |
| Pin produk 49 | BOOT0 — Boot mode selection |
| Pin produk 50 | PB8 — GPIO / CAN_RX |
| Pin produk 51 | PB9 — GPIO / CAN_TX |
| Pin produk 52 | VDD — Power supply |
| Pin produk 53 | VSS — Ground |
| Pin produk 54 | PA8 — GPIO / MCO |
| Pin produk 55 | PA9 — GPIO / USART1_TX |
| Pin produk 56 | PA10 — GPIO / USART1_RX |
| Pin produk 57 | PA11 — GPIO / USB_DM |
| Pin produk 58 | PA12 — GPIO / USB_DP |
| Pin produk 59 | PA13 — GPIO / SWDIO |
| Pin produk 60 | PA14 — GPIO / SWCLK |
| Pin produk 61 | PA15 — GPIO / JTDI |
| Pin produk 62 | PC13 — GPIO / RTC |
| Pin produk 63 | PC14 — GPIO / OSC32_IN |
| Pin produk 64 | PC15 — GPIO / OSC32_OUT |
Aplikasi Umum
STM32U535RET6 cocok untuk 6 aplikasis: Smart Wearables, Industrial Sensors, Medical Devices, IoT Edge Nodes, Portable Medical Monitors, Smart Home Devices.
Smart Wearables
The STM32U535RET6 is ideal for smart wearables due to its ultra-low-power consumption and compact LQFP-64 package. Its 160 MHz Cortex-M33 core provides sufficient processing power for sensor fusion and health monitoring algorithms, while the TrustZone security protects user data. In a typical fitness tracker, the MCU manages an accelerometer, heart-rate sensor, and Bluetooth Low Energy connectivity, running for weeks on a small battery. The device's multiple low-power modes allow the system to sleep between sensor readings, extending battery life significantly. According to ST's application notes, the STM32U5 series can achieve sub-microamp standby currents, making it perfect for always-on wearable devices.
Direkomendasikan
Industrial Sensors
The STM32U535RET6 excels in industrial sensor applications, offering a wide supply voltage range and robust communication interfaces. Its 512 KB flash allows for complex calibration algorithms and data logging, while the 274 KB SRAM buffers sensor data for real-time processing. The MCU's 12-bit ADC and DAC enable direct interfacing with analog sensors and actuators. In a predictive maintenance system, the STM32U535RET6 can process vibration data from an accelerometer, perform FFT analysis, and transmit results over RS-485 or CAN. The device's industrial temperature range (-40°C to +85°C) ensures reliable operation in harsh environments. According to ST's datasheet, the MCU's low-power modes are particularly useful for battery-powered wireless sensor nodes.
Direkomendasikan
Medical Devices
The STM32U535RET6 is well-suited for medical devices, where security and reliability are paramount. The Arm TrustZone technology provides hardware-enforced isolation for patient data, meeting regulatory requirements. The MCU's ultra-low-power operation extends battery life in portable monitors, such as glucose meters and pulse oximeters. Its 160 MHz core handles real-time signal processing for ECG or EEG signals, while the 512 KB flash stores firmware and patient records. The device's multiple communication interfaces, including USB, enable easy data transfer to external systems. According to ST's product page, the STM32U5 series is designed for medical applications requiring high security and low power consumption.
Direkomendasikan
IoT Edge Nodes
The STM32U535RET6 is a perfect choice for IoT edge nodes, combining ultra-low-power operation with advanced security features. Its TrustZone technology ensures secure boot and firmware updates, protecting against cyber threats. The MCU's 160 MHz Cortex-M33 core can run machine learning models for edge inference, reducing the need for cloud connectivity. In a smart agriculture system, the STM32U535RET6 can collect data from soil moisture sensors, process it locally, and transmit results via LoRa or NB-IoT. The device's low-power modes allow it to run for years on a single battery. According to ST's application notes, the STM32U5 series is optimized for battery-powered IoT devices, with a standby current of less than 1 µA.
Direkomendasikan
Portable Medical Monitors
The STM32U535RET6 is ideal for portable medical monitors, offering a balance of performance, security, and power efficiency. Its 160 MHz Cortex-M33 core can handle real-time signal processing for vital sign monitoring, while the TrustZone ensures secure handling of patient data. The MCU's 512 KB flash provides ample storage for firmware and data logs, and the 274 KB SRAM supports complex algorithms. In a wearable ECG monitor, the STM32U535RET6 can process ECG signals, detect arrhythmias, and alert the user via Bluetooth. The device's ultra-low-power modes extend battery life, making it suitable for continuous monitoring. According to ST's datasheet, the STM32U5 series is designed for medical applications requiring high reliability and low power consumption.
Direkomendasikan
Smart Home Devices
The STM32U535RET6 is well-suited for smart home devices, providing a secure and energy-efficient platform. Its TrustZone technology protects against unauthorized access, while the ultra-low-power modes enable battery-operated devices like smart locks and sensors. The MCU's 160 MHz core can handle voice recognition and local processing, reducing latency and cloud dependency. In a smart thermostat, the STM32U535RET6 can manage temperature sensors, control HVAC systems, and communicate via Wi-Fi or Zigbee. The device's rich peripheral set, including multiple timers and communication interfaces, simplifies system design. According to ST's product page, the STM32U5 series is designed for smart home applications requiring security and low power consumption.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk STM32U535RET6 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | STM32U535RCT6 | STM32U535RET7 | STM32U535RCT7 | STM32U575RET6 | GD32F427RET6 |
|---|---|---|---|---|---|---|
| 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 | GigaDevice |
| Core | Cortex-M33 | Cortex-M33 | Cortex-M33 | Cortex-M33 | Cortex-M33 | Cortex-M4 |
| Max Clock Frequency | 160 MHz | 160 MHz | 160 MHz | 160 MHz | 160 MHz | 200 MHz |
| Flash Memory | 512 KB | 256 KB | 512 KB | 256 KB | 512 KB | 512 KB |
| SRAM | 274 KB | 274 KB | 274 KB | 274 KB | 786 KB | 192 KB |
| TrustZone | Yes | Yes | Yes | Yes | Yes | No |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | -40°C to +105°C | -40°C to +105°C | -40°C to +85°C | -40°C to +85°C |
Diferensiator Kunci
- Ultra-low-power consumption with multiple low-power modes (vsGD32F427RET6)
- Arm TrustZone security (vsGD32F427RET6)
- Higher SRAM capacity (vsSTM32U535RCT6)
Catatan Desain
The STM32U535RET6 operates from 1.8V to 3.6V. Use a low-dropout regulator (LDO) to provide a clean supply, and place 100 nF and 4.7 µF decoupling capacitors close to each VDD pin. For battery-powered designs, enable the low-power modes (Stop, Standby) to reduce current consumption to microamps. According to ST's application note AN5347, proper power sequencing is critical to avoid latch-up.
For the 64-pin LQFP package, ensure adequate ground plane and thermal vias under the exposed pad (if present) to improve heat dissipation. Keep high-speed traces (USB, SPI) short and impedance-controlled. Follow ST's layout guidelines in AN4666 for optimal EMC performance.
A common mistake is forgetting to configure the boot pins (BOOT0) correctly, which can prevent the MCU from starting. Also, ensure the NRST pin has a proper pull-up resistor and capacitor for reliable reset. When using TrustZone, remember to set up the secure/non-secure boundaries correctly in the SAU and MPU, as incorrect configuration can cause hard faults.
Informasi Konformitas
RoHS compliant per ST product page. Not AEC-Q100 qualified. Lead-free per ST's environmental policy.
