STM32U575RGT6 - Ultra-Low-Power Cortex-M33 MCU | STMicroelectronics
MPN: STM32U575RGT6 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.85 | $4.85 |
| 10 | $4.36 | $43.60 |
| 100 | $3.88 | $388.00 |
| 500 | $3.49 | $1,745.00 |
| 1,000 | $3.1 | $3,100.00 |
STM32U575RGT6 Overview
A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory, and programmable input/output peripherals on a single chip. The STM32U5 series represents the ultra-low-power segment of ST's STM32 portfolio, targeting battery-powered and energy-harvesting applications where power efficiency is paramount. As a member of the STM32 family, it benefits from the extensive STM32Cube ecosystem, including HAL libraries, middleware, and development tools.
Key features of the STM32U575RGT6 include the Arm Cortex-M33 core with TrustZone for hardware-enforced security, a floating-point unit (FPU) for efficient mathematical computation, and a rich set of peripherals such as multiple UARTs, SPIs, I2Cs, USB, and advanced timers. The device supports a wide supply voltage range and offers multiple low-power modes, including Sleep, Stop, and Standby, with typical current consumption in the microamp range. It also integrates a 12-bit ADC, DAC, and various communication interfaces, making it versatile for IoT, industrial, and consumer applications.
From a technical depth perspective, the STM32U575RGT6 leverages a 40nm process technology, enabling a balance between performance and power consumption. The TrustZone technology provides secure boot and isolated execution environments, critical for applications handling sensitive data. The FPU accelerates single-precision floating-point operations, beneficial for signal processing and control algorithms. The device also includes a memory protection unit (MPU) and a cryptographic accelerator, enhancing overall system security and performance.
Typical applications include smart meters, wearable devices, medical monitoring equipment, and industrial sensors. In smart meters, the ultra-low-power consumption extends battery life, while the security features protect metering data. For wearables, the compact LQFP package and low-power modes enable continuous operation from small batteries. In medical devices, the reliable operation and security features ensure patient data integrity.
When designing with the STM32U575RGT6, it is essential to plan the power supply and decoupling carefully. Use a stable 3.3V supply with 100nF decoupling capacitors close to each power pin. For low-power operation, configure the clock system to use the low-speed external oscillator (LSE) and utilize the Stop mode with RTC wake-up to minimize current draw. Additionally, ensure proper grounding and layout for the LQFP package to avoid noise issues.
Drop-in alternatives for STM32U575RGT6 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with STM32U575RGT6 (same form factor and footprint) — differing in Communication Interfaces, Core, Flash Memory, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
STM32U575RGT6TR
✅ Drop-In📋 Reference alternative (not in catalog)
STM32U575RGT6Q
✅ Drop-In📋 Reference alternative (not in catalog)
STM32U585RIT3
⚡ Same Package📋 Reference alternative (not in catalog)
GD32F103RCT6
⚡ Same Package ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM32U575RGT6 Maximum Ratings & Electrical Characteristics
| Core | Arm Cortex-M33 with TrustZone and FPU |
| Maximum Clock Frequency | 160 MHz |
| Flash Memory | 1 MB (1M x 8) |
| SRAM | 786 KB |
| Data Bus Width | 32-bit |
| Package | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| ADC Resolution | 12-bit |
| Communication Interfaces | UART, SPI, I2C, USB |
| RoHS Status | Compliant |
STM32U575RGT6 Pin Configuration
| Pin 1 | VBAT — Battery backup supply for RTC and backup registers |
| Pin 2 | PC13 — GPIO or RTC tamper pin |
| Pin 3 | PC14 — GPIO or OSC32_IN |
| Pin 4 | PC15 — GPIO or OSC32_OUT |
| Pin 5 | PF0 — GPIO |
| Pin 6 | PF1 — GPIO |
| Pin 7 | NRST — Reset pin (active low) |
| Pin 8 | VDD — Digital power supply |
| Pin 9 | VSS — Ground |
| Pin 10 | VDDA — Analog power supply |
| Pin 11 | PA0 — GPIO or ADC input |
| Pin 12 | PA1 — GPIO or ADC input |
| Pin 13 | PA2 — GPIO or USART2_TX |
| Pin 14 | PA3 — GPIO or USART2_RX |
| Pin 15 | PA4 — GPIO or SPI1_NSS |
| Pin 16 | PA5 — GPIO or SPI1_SCK |
| Pin 17 | PA6 — GPIO or SPI1_MISO |
| Pin 18 | PA7 — GPIO or SPI1_MOSI |
| Pin 19 | PB0 — GPIO or ADC input |
| Pin 20 | PB1 — GPIO or ADC input |
| Pin 21 | PB2 — GPIO |
| Pin 22 | PB10 — GPIO or I2C2_SCL |
| Pin 23 | PB11 — GPIO or I2C2_SDA |
| Pin 24 | VSS — Ground |
| Pin 25 | VDD — Digital power supply |
| Pin 26 | PB12 — GPIO or SPI2_NSS |
| Pin 27 | PB13 — GPIO or SPI2_SCK |
| Pin 28 | PB14 — GPIO or SPI2_MISO |
| Pin 29 | PB15 — GPIO or SPI2_MOSI |
| Pin 30 | PC6 — GPIO or TIM3_CH1 |
| Pin 31 | PC7 — GPIO or TIM3_CH2 |
| Pin 32 | PC8 — GPIO or TIM3_CH3 |
| Pin 33 | PC9 — GPIO or TIM3_CH4 |
| Pin 34 | PA8 — GPIO or MCO |
| Pin 35 | PA9 — GPIO or USART1_TX |
| Pin 36 | PA10 — GPIO or USART1_RX |
| Pin 37 | PA11 — GPIO or USB_DM |
| Pin 38 | PA12 — GPIO or USB_DP |
| Pin 39 | PA13 — SWDIO |
| Pin 40 | PA14 — SWCLK |
| Pin 41 | PA15 — GPIO or JTDI |
| Pin 42 | PB3 — GPIO or JTDO |
| Pin 43 | PB4 — GPIO or NJTRST |
| Pin 44 | PB5 — GPIO |
| Pin 45 | PB6 — GPIO or I2C1_SCL |
| Pin 46 | PB7 — GPIO or I2C1_SDA |
| Pin 47 | BOOT0 — Boot mode selection |
| Pin 48 | PB8 — GPIO or CAN_RX |
| Pin 49 | PB9 — GPIO or CAN_TX |
| Pin 50 | VDD — Digital power supply |
| Pin 51 | VSS — Ground |
| Pin 52 | PC10 — GPIO or USART3_TX |
| Pin 53 | PC11 — GPIO or USART3_RX |
| Pin 54 | PC12 — GPIO or USART3_CK |
| Pin 55 | PD2 — GPIO |
| Pin 56 | PH0 — OSC_IN |
| Pin 57 | PH1 — OSC_OUT |
| Pin 58 | PH2 — GPIO |
| Pin 59 | PH3 — GPIO |
| Pin 60 | PH4 — GPIO |
| Pin 61 | PH5 — GPIO |
| Pin 62 | PH6 — GPIO |
| Pin 63 | PH7 — GPIO |
| Pin 64 | VDD — Digital power supply |
Typical Applications
STM32U575RGT6 is suitable for 6 applications: Smart Meters, Wearable Devices, Medical Monitoring Equipment, Industrial Sensors, IoT Edge Devices, Consumer Electronics.
Smart Meters
The STM32U575RGT6 is ideal for smart meters due to its ultra-low-power consumption, which extends battery life, and its TrustZone security features that protect metering data. The 160 MHz Cortex-M33 core and 1 MB Flash provide ample processing power for complex metering algorithms and communication protocols. In a typical smart meter, the MCU manages energy measurement, data logging, and wireless communication, operating in low-power modes between readings to minimize energy usage. The device's rich peripheral set, including UART, SPI, and I2C, facilitates interfacing with sensors and communication modules. The security features ensure that metering data is protected from tampering, which is critical for billing accuracy and regulatory compliance.
Recommended
Wearable Devices
The STM32U575RGT6 is well-suited for wearable devices such as fitness trackers and smartwatches, where power efficiency and compact size are critical. The 64-pin LQFP package (10x10 mm) allows for space-constrained PCB designs, while the ultra-low-power modes enable continuous operation from small batteries. The Cortex-M33 core with FPU accelerates sensor data processing, such as heart rate and motion analysis, without draining the battery. The device's security features protect user health data, and its communication interfaces (UART, SPI, I2C, USB) enable connectivity with smartphones and other peripherals. In a typical wearable, the MCU manages sensor fusion, display control, and wireless communication, entering low-power states when idle to extend battery life.
Recommended
Medical Monitoring Equipment
The STM32U575RGT6 is suitable for medical monitoring devices such as portable patient monitors and glucose meters, where reliability and security are paramount. The TrustZone technology provides a secure execution environment for patient data, ensuring compliance with healthcare regulations. The 160 MHz Cortex-M33 core and FPU enable real-time signal processing for vital sign monitoring, while the 1 MB Flash stores firmware and patient records. The device's low-power consumption is critical for battery-operated portable devices, allowing extended monitoring periods. In a typical medical monitor, the MCU interfaces with sensors to measure parameters like heart rate and blood oxygen, processes the data, and displays results on a screen or transmits them wirelessly. The rich peripheral set and security features make it a robust choice for medical applications.
Recommended
Industrial Sensors
The STM32U575RGT6 is ideal for industrial sensors used in factory automation and process control, where reliability and real-time performance are essential. The 160 MHz Cortex-M33 core provides fast processing for sensor data, while the 12-bit ADC and multiple communication interfaces (UART, SPI, I2C) enable seamless integration with industrial networks. The device's wide operating temperature range and robust design make it suitable for harsh environments. In a typical industrial sensor, the MCU reads analog signals from sensors, processes the data, and communicates results to a central controller via protocols like Modbus or CAN. The ultra-low-power modes are beneficial for battery-powered wireless sensors, reducing maintenance costs. The security features protect against unauthorized access, ensuring the integrity of industrial control systems.
Recommended
IoT Edge Devices
The STM32U575RGT6 is an excellent choice for IoT edge devices that require secure, low-power processing. The TrustZone technology provides hardware-enforced security for secure boot and over-the-air updates, protecting devices from cyber threats. The 160 MHz Cortex-M33 core and 1 MB Flash enable complex edge computing tasks, such as data filtering and anomaly detection, reducing the need for cloud processing. The device's low-power modes are critical for battery-powered IoT devices, allowing years of operation on a single battery. In a typical IoT edge device, the MCU collects data from sensors, processes it locally, and transmits it to the cloud via Wi-Fi, Bluetooth, or LoRa. The rich peripheral set and security features make it a versatile platform for a wide range of IoT applications.
Recommended
Consumer Electronics
The STM32U575RGT6 is used in consumer electronics such as smart home devices, remote controls, and portable audio players, where performance and power efficiency are balanced. The 160 MHz Cortex-M33 core provides responsive user interfaces, while the FPU accelerates audio processing algorithms. The device's low-power modes extend battery life in portable devices, and its security features protect user data and prevent unauthorized access. In a typical smart home device, the MCU manages user input, controls actuators, and communicates with a central hub via protocols like Zigbee or Bluetooth. The compact LQFP package and rich peripheral set make it easy to integrate into consumer products, and the STM32Cube ecosystem accelerates development with ready-to-use libraries and examples.
Recommended
Recommended Products Summary
Engineering reference data for STM32U575RGT6 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32U575RGT6TR | STM32U575RGT6Q | STM32U585RIT3 |
|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | Arm Cortex-M33 | Arm Cortex-M33 | Arm Cortex-M33 | Arm Cortex-M33 |
| Maximum Clock Frequency | 160 MHz | 160 MHz | 160 MHz | 160 MHz |
| Flash Memory | 1 MB | 1 MB | 1 MB | 2 MB |
| SRAM | 786 KB | 786 KB | 786 KB | 786 KB |
| TrustZone | Yes | Yes | Yes | Yes |
| FPU | Yes | Yes | Yes | Yes |
Key Differentiators
- Ultra-low-power consumption with TrustZone security (vs STM32U585RIT3)
- 1 MB Flash and 786 KB SRAM in a compact LQFP package (vs STM32U575RGT6TR)
- Arm Cortex-M33 with FPU and TrustZone (vs GD32F103RCT6)
Design Notes
For ultra-low-power operation, use the low-speed external oscillator (LSE) and configure the device to enter Stop mode with RTC wake-up. Ensure that all unused GPIOs are configured as analog inputs to minimize leakage current. The typical current consumption in Stop mode is in the microamp range, but this depends on the configuration and supply voltage.
Place 100nF decoupling capacitors close to each VDD pin and a 4.7uF capacitor at the main power input. For the LQFP package, ensure proper grounding with a solid ground plane. The exposed pad (if present) should be soldered to the ground plane for thermal and electrical performance.
When using TrustZone, ensure that the secure and non-secure memory regions are correctly configured in the SAU and MPU. Incorrect configuration can lead to hard faults or security vulnerabilities. Also, verify that the boot mode (BOOT0 pin) is set correctly for the desired boot source (Flash, SRAM, or system memory).
Compliance Information
RoHS compliance confirmed from distributor listings. Other compliance data not explicitly stated in the provided sources.
