Microcontrollers
Products (422)
STM32L486VGT6 - ARM Cortex-M4F MCU 1MB Flash | STMicroelectronics
The STMicroelectronics STM32L486VGT6 is a high-performance, ultra-low-power ARM Cortex-M4F based microcontroller with 1MB of Flash memory and 128KB of SRAM, packaged in a 100-pin LQFP (VGT6 suffix). It operates at a maximum frequency of 80 MHz, delivering 100 DMIPS with DSP instructions and a hardware floating-point unit (FPU) for signal processing and control applications. What is an ARM Cortex-M4F microcontroller? It is a 32-bit processor core designed for embedded systems that require a balance of performance, energy efficiency, and advanced digital signal processing. The Cortex-M4F includes a single-precision FPU and DSP instructions, making it suitable for applications involving real-time control, sensor fusion, and audio processing. In the system hierarchy, it sits above simple 8-bit MCUs but below application processors, offering deterministic real-time behavior with low power consumption. Key features of the STM32L486VGT6 include an ultra-low-power mode with 100 nA shutdown current, a 12-bit ADC with 5 MSPS, two 12-bit DACs, multiple communication interfaces (USART, SPI, I2C, USB OTG FS, CAN, SAI), and a true random number generator (TRNG). It also integrates a cryptographic acceleration unit (AES, DES, and hash) for secure applications. The device supports a wide supply voltage range of 1.71V to 3.6V, making it ideal for battery-powered devices. The STM32L486VGT6 is built on ST's ultra-low-power technology, featuring multiple low-power modes (Sleep, Low-power Run, Low-power Sleep, Stop 2, Standby, Shutdown) that allow designers to optimize energy consumption. The FlexPowerControl feature enables independent power domains for the core, I/Os, and backup domain, providing flexibility in power management. The device also includes a 32-bit low-power timer, a real-time clock (RTC) with calendar, and a touch sensing controller. Typical applications include industrial sensors, smart meters, medical devices, wearable electronics, and IoT nodes. Its combination of low power, high performance, and rich peripherals makes it suitable for applications requiring long battery life without compromising on processing capability. For example, in a smart meter, the STM32L486VGT6 can handle metrology calculations, communication protocols, and display control while maintaining low average power consumption. When designing with this device, pay attention to the power supply decoupling: place a 100 nF capacitor close to each VDD pin and a 4.7 uF capacitor at the main supply. For low-power operation, configure unused GPIOs as analog inputs to avoid leakage currents. The device supports in-application programming (IAP) and in-circuit programming (ICP) via SWD or JTAG, facilitating firmware updates in the field.
STM32L496VGT6 - Ultra-Low-Power ARM Cortex-M4F MCU | STMicroelectronics
The STM32L496VGT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, based on the ARM Cortex-M4F core with FPU, running at up to 80 MHz. It integrates 1 MB of flash memory and 320 KB of SRAM, making it suitable for complex embedded applications requiring significant code and data storage. The device operates from a 1.71V to 3.6V supply and features a rich set of peripherals including multiple USARTs, SPIs, I2Cs, USB OTG FS, CAN, SDMMC, and advanced analog capabilities with two 12-bit ADCs, two DACs, and an internal voltage reference. What is an ultra-low-power microcontroller? An ultra-low-power microcontroller is a type of embedded processor designed to minimize energy consumption while maintaining computational performance. It belongs to the broader category of microcontrollers, which are integrated circuits containing a processor core, memory, and programmable peripherals on a single chip. In the system hierarchy, an ultra-low-power MCU sits above basic 8-bit controllers but below application processors, offering a balance of efficiency and capability for battery-powered and energy-harvesting devices. The STM32L496VGT6 exemplifies this class with multiple low-power modes, including Sleep, Low-power Run, and Shutdown, enabling extended battery life in portable and IoT applications. Key features of the STM32L496VGT6 include its 80 MHz ARM Cortex-M4F core with DSP instructions and single-precision FPU, 1 MB flash, 320 KB SRAM, and a comprehensive set of communication interfaces. It also features a Chrom-ART Accelerator for enhanced graphic performance, a true random number generator, and a cryptographic acceleration unit supporting AES, DES, and 3DES. The device is manufactured using ST's 40 nm process technology, contributing to its low power consumption and high integration density. Technically, the STM32L496VGT6 offers up to 100 DMIPS performance, with a CoreMark score of 273. It includes a flexible memory controller supporting external memory, and a large number of GPIOs (up to 114) in the LQFP100 package. The analog subsystem includes two 12-bit ADCs with hardware oversampling, two 12-bit DACs, and an internal voltage reference buffer. The device also supports a wide range of timers, including advanced-control timers for motor control and a low-power timer for wake-up from low-power modes. Typical applications include industrial sensors, smart meters, medical devices, wearable electronics, and IoT nodes. Its ultra-low-power modes and rich analog peripherals make it ideal for battery-powered data acquisition systems, while its connectivity options enable seamless integration into industrial networks and cloud platforms. When designing with this device, pay attention to the power supply decoupling and the selection of the appropriate low-power mode for your application. The STM32L496VGT6 supports a flexible clock tree with multiple PLLs, allowing optimization of performance versus power consumption. Ensure proper configuration of the voltage regulator range to balance performance and energy efficiency.
STM32L4P5VGT6 - Ultra-Low-Power Cortex-M4 MCU | STMicroelectronics
The STMicroelectronics STM32L4P5VGT6 is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M4 core with FPU, operating at up to 120 MHz. It delivers 213 DMIPS and 550 CoreMark, making it suitable for a wide range of battery-powered and energy-efficient applications. The device is housed in a 100-pin LQFP package (14x14 mm) and offers up to 1 MB of flash memory and 320 KB of SRAM. What is an ARM Cortex-M4 microcontroller? It is a 32-bit processor core designed for embedded systems, featuring a single-cycle multiply-accumulate (MAC) unit, hardware divide, and optional single-precision floating-point unit (FPU). The Cortex-M4 is part of the ARM Cortex-M family, which includes the M0, M0+, M3, M4, and M7 cores, each optimized for different performance and power trade-offs. In the system hierarchy, a microcontroller (MCU) integrates the processor core, memory, and peripherals on a single chip, serving as the central processing unit in embedded systems such as IoT devices, industrial controllers, and consumer electronics. Key features include a rich set of analog peripherals: two 12-bit DACs, three 12-bit ADCs with hardware oversampling, two operational amplifiers, two comparators, and an internal voltage reference buffer. The device also integrates advanced digital peripherals: two CAN FD controllers, one USB 2.0 OTG FS/HS, one SDMMC interface, and a flexible memory controller (FMC) for external memory expansion. The STM32L4P5VGT6 supports multiple low-power modes, including Sleep, Low-power Run, Low-power Sleep, Stop 0/1/2, and Standby, with a typical current consumption of 100 nA in Standby mode with backup domain. The STM32L4P5VGT6 is built on ST's ultra-low-power technology, featuring a dynamic voltage scaling (DVS) capability that adjusts the core voltage to optimize power consumption at different operating frequencies. The device includes a hardware cryptographic accelerator (AES, DES, 3DES) and a true random number generator (TRNG), enhancing security for connected applications. The rich set of timers includes two advanced-control timers, six general-purpose timers, two basic timers, and two low-power timers, providing precise timing and PWM generation. Typical applications include IoT nodes, smart meters, portable medical devices, industrial sensors, and wearable devices. The ultra-low-power modes and high integration make it ideal for battery-powered systems requiring long operational life. The device also supports a wide operating temperature range of -40°C to +85°C, suitable for industrial environments. When designing with this MCU, pay attention to the power supply decoupling: place a 100 nF capacitor close to each VDD pin and a 4.7 uF capacitor at the main power input. For low-power operation, configure the GPIOs to analog mode when unused to reduce leakage current. The STM32L4P5VGT6 is supported by STM32CubeMX and STM32CubeL4 firmware package, simplifying development.
STM32L4Q5VGT6 - Ultra-Low-Power ARM Cortex-M4 MCU | STMicroelectronics
The STM32L4Q5VGT6 is an ultra-low-power microcontroller from STMicroelectronics, featuring an ARM Cortex-M4 core with FPU and DSP instructions, running at up to 120 MHz. It is part of the STM32L4 series, designed for high performance and low power consumption, making it ideal for battery-powered and energy-efficient applications. An ARM Cortex-M4 microcontroller is a 32-bit processor core designed for embedded systems, offering a balance of performance and power efficiency. It includes a floating-point unit (FPU) for efficient mathematical computations and DSP instructions for signal processing. The STM32L4 series is known for its ultra-low-power modes, including sleep, stop, and standby, which are critical for extending battery life in portable devices. Key features of the STM32L4Q5VGT6 include 1 MB of flash memory and 320 KB of SRAM, providing ample storage for complex applications. It operates from 1.71V to 3.6V, with a wide temperature range of -40°C to +85°C. The device integrates a rich set of peripherals, including multiple USART, SPI, I2C, USB OTG FS, CAN, and advanced analog features such as a 16-bit ADC and a 12-bit DAC. It also includes a true random number generator (TRNG) and a cryptographic acceleration unit for secure applications. The STM32L4Q5VGT6 is built on a 40nm process technology, enabling low dynamic power consumption. It features a flexible power management system with multiple power domains, allowing designers to optimize power usage. The device supports various low-power modes, with typical current consumption as low as 100 nA in standby mode, making it suitable for always-on applications. Typical applications include industrial sensors, smart meters, medical devices, wearable devices, and IoT nodes. Its combination of performance, low power, and rich peripherals makes it a versatile choice for a wide range of embedded systems. When designing with this MCU, it is essential to consider the power supply decoupling and proper grounding to ensure stable operation. The device requires a 1.8V to 3.6V supply, and it is recommended to use a 100nF capacitor close to each power pin. Additionally, the internal LDO can be used to generate the core voltage, but external regulators may be needed for higher efficiency in battery-powered designs.
STM32L4S5VIT6 - Ultra-Low-Power ARM Cortex-M4F MCU | STMicroelectronics
The STM32L4S5VIT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, based on the ARM Cortex-M4 core with floating-point unit (FPU). It operates at a maximum frequency of 120 MHz and delivers 150 DMIPS (Dhrystone 2.1) performance. The device integrates 2 MB of flash memory and 640 KB of SRAM, making it suitable for complex applications requiring substantial code and data storage. It is housed in a 100-pin LQFP package (LQFP100) with a 14x14 mm body and 0.5 mm pitch, providing a compact footprint for space-constrained designs. What is an ultra-low-power microcontroller? An ultra-low-power microcontroller is a type of embedded processor designed to minimize energy consumption while maintaining computational capability. It typically features multiple low-power modes, such as sleep, stop, and standby, allowing the system to conserve power when idle. In the system hierarchy, an ultra-low-power MCU is a subset of microcontrollers, which are a type of integrated circuit used in embedded systems. The STM32L4 series is specifically optimized for battery-powered and energy-harvesting applications, balancing performance with power efficiency. Key features of the STM32L4S5VIT6 include a rich set of peripherals: multiple 12-bit ADCs, DACs, timers, communication interfaces (USART, SPI, I2C, CAN, USB OTG), and advanced security features such as a true random number generator (TRNG) and cryptographic acceleration. The device supports a wide supply voltage range from 1.71V to 3.6V, with a typical operating temperature range of -40°C to +85°C. It also features a flexible memory protection unit (MPU) and a memory-mapped external memory interface for expanding storage. Technically, the STM32L4S5VIT6 leverages ST's proprietary ultra-low-power technology, including a low-power UART, low-power timer, and a real-time clock (RTC) with calendar. The MCU achieves a current consumption as low as 100 nA in standby mode with backup domain, and 3.4 µA in stop mode with RTC. This makes it ideal for always-on sensing applications. The device also includes a high-speed USB OTG controller with PHY, enabling direct connection to USB hosts without external PHY. Typical applications include industrial sensors, smart meters, wearable devices, medical monitoring equipment, and IoT edge nodes. Its combination of low power, high performance, and rich peripherals allows designers to implement complex algorithms while extending battery life. For example, in a smart meter, the MCU can handle metrology calculations, communication protocols, and display updates while spending most of its time in low-power modes. When designing with this MCU, pay attention to power supply decoupling: place a 100 nF capacitor close to each VDD pin and a 4.7 µF capacitor on the main supply. Also, configure the clock system carefully to balance performance and power consumption, using the MSI (multi-speed internal) oscillator for low-power operation and the HSE (high-speed external) crystal for precise timing when needed.
STM32L4S9ZIT6 - Ultra-Low-Power ARM Cortex-M4F MCU | STMicroelectronics
The STM32L4S9ZIT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, based on the ARM Cortex-M4 core with floating-point unit (FPU). It operates at a maximum frequency of 120 MHz and delivers 150 DMIPS (Dhrystone 2.1) performance. The device integrates 2 MB of flash memory and 640 KB of SRAM, making it suitable for complex applications requiring large code and data storage. It is housed in a 144-pin LQFP package (LQFP144) with a 20x20 mm body and 0.5 mm pitch, providing ample I/O for peripheral-rich designs. A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory (flash and SRAM), and programmable input/output peripherals on a single chip. The STM32L4 series is part of STMicroelectronics' ultra-low-power portfolio, targeting battery-powered and energy-harvesting applications. The Cortex-M4 core with FPU enables efficient digital signal processing (DSP) instructions and single-precision floating-point arithmetic, bridging the gap between general-purpose MCUs and higher-end application processors. Key features include a rich set of analog peripherals: three 12-bit ADCs with up to 5 MSPS, two 12-bit DACs, two operational amplifiers, two comparators, and an internal voltage reference buffer. For connectivity, it offers multiple communication interfaces: 6x I2C, 6x USART/UART, 3x SPI, 2x SAI (serial audio interface), 1x SDMMC, 1x CAN, 1x USB OTG FS, and 1x camera interface (DCMI). The device also includes a Chrom-ART Accelerator (DMA2D) for 2D graphics, a true random number generator (TRNG), and a hardware cryptographic accelerator (AES, DES, 3DES, and SHA-1/SHA-256). The STM32L4S9ZIT6 is built on a 40 nm process technology, achieving ultra-low power consumption: 100 nA in shutdown mode, 3.6 uA in standby mode with RTC, and 28 uA/MHz in run mode. It supports a wide supply voltage range of 1.71V to 3.6V, with an internal voltage regulator and power management unit. The device includes a flexible power controller with multiple low-power modes (Sleep, Low-power run, Low-power sleep, Stop 0/1/2, Standby, Shutdown) to optimize energy efficiency. Typical applications include industrial sensors, smart meters, medical devices, wearable devices, IoT nodes, and audio processing. The large memory and rich peripherals make it ideal for applications requiring local data logging, advanced user interfaces, or real-time signal processing. The Chrom-ART accelerator and TFT-LCD controller (LTDC) support graphical displays without burdening the CPU. When designing with this device, pay attention to power supply decoupling: place a 100 nF capacitor close to each VDD pin and a 4.7 uF capacitor on the main supply. For low-power modes, configure the RTC and wakeup sources carefully to minimize current consumption. The device supports in-circuit programming and debugging via SWD and JTAG interfaces, facilitating development.
STM32L552RET6 - 110MHz Arm Cortex-M33 MCU with TrustZone | STMicroelectronics
The STMicroelectronics STM32L552RET6 is an ultra-low-power 32-bit microcontroller based on the Arm Cortex-M33 core with TrustZone for Armv8-M, delivering 110 MHz maximum clock frequency. It integrates 512 KB of flash memory and 256 KB of SRAM, along with a rich set of peripherals including advanced analog, timers, communication interfaces, and security features. The device is housed in a 64-pin LQFP package (10x10 mm) and operates over a supply voltage range of 1.71V to 3.6V, with an extended temperature range of -40°C to +85°C. What is an Arm Cortex-M33 microcontroller? The Arm Cortex-M33 is a modern 32-bit processor core designed for embedded applications requiring a balance of performance, power efficiency, and security. It implements the Armv8-M architecture with optional TrustZone technology, which provides hardware-enforced isolation between secure and non-secure software domains. In the system hierarchy, the STM32L552RET6 is a microcontroller (MCU) that integrates the Cortex-M33 core, memory, and peripherals on a single chip, serving as the central processing unit in embedded systems. It belongs to the STM32L5 series, which is positioned as STMicroelectronics' secure, ultra-low-power MCU family, bridging the gap between general-purpose MCUs and application processors. Key features of the STM32L552RET6 include a 110 MHz Arm Cortex-M33 core with DSP instructions and a floating-point unit (FPU), 512 KB flash, 256 KB SRAM, and a comprehensive set of security features such as TrustZone, a true random number generator (TRNG), and cryptographic acceleration (AES, RSA, ECC). The device also offers multiple low-power modes, including Sleep, Low-power Run, Low-power Sleep, Stop 0/1/2, and Standby, with a typical current consumption of 100 nA in Standby mode with backup domain. The rich analog subsystem includes a 16-bit ADC with hardware oversampling, two 12-bit DACs, and two ultra-low-power comparators. From a technical depth perspective, the STM32L552RET6 is fabricated using ST's advanced 40 nm process technology, which contributes to its exceptional power efficiency. The TrustZone technology enables secure boot and secure firmware update, making it suitable for IoT and security-critical applications. The device also features a flexible memory protection unit (MPU) and a secure access controller (SAC) to enforce security policies. The integrated power management includes a built-in DC-DC converter and a low-power regulator, allowing designers to optimize power consumption based on the application's needs. Typical applications for the STM32L552RET6 include IoT edge devices, smart meters, industrial sensors, medical monitoring equipment, and secure access control systems. Its combination of low power, high performance, and security makes it ideal for battery-powered devices that require secure communication and data protection. For example, in a smart meter, the MCU can handle metering calculations, secure communication with the utility, and display updates while maintaining long battery life. When designing with the STM32L552RET6, it is essential to consider the power supply decoupling: place a 100 nF capacitor close to each VDD pin and a 4.7 uF capacitor at the main power input. For the VDDA pin, use a dedicated 1 uF capacitor to ensure analog performance. Additionally, the BOOT0 pin configuration must be set correctly for the desired boot mode, and the NRST pin should have a 100 nF capacitor to ground for reliable reset operation. The device supports in-circuit programming and debugging via SWD, which requires minimal external components.
STM32L562RET6 - 512KB Flash, 110MHz Cortex-M33 MCU | STMicroelectronics
The STMicroelectronics STM32L562RET6 is an ultra-low-power 32-bit microcontroller based on the Arm Cortex-M33 core with TrustZone, running at up to 110 MHz. It integrates 512 KB of flash memory and 256 KB of SRAM, and is housed in a 64-pin LQFP (LQFP64) package. This device is part of the STM32L5 series, designed for secure and power-efficient applications. 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.
STM32MP157FAD7 - Dual Cortex-A7 + M4 MPU | STMicroelectronics
The STMicroelectronics STM32MP157FAD7 is a high-performance heterogeneous microprocessor (MPU) that combines a dual-core Arm Cortex-A7 application processor running up to 650 MHz with a Cortex-M4 real-time core running at 209 MHz. This device is part of the STM32MP1 series, designed for industrial, IoT, and embedded applications requiring both rich operating system support (Linux/Android) and deterministic real-time control. The STM32MP157FAD7 is housed in a 448-pin LFBGA package (18x18 mm, 0.8 mm pitch) and operates over a temperature range of -40°C to +125°C. A microprocessor (MPU) is a complete processing unit that integrates one or more CPU cores, memory interfaces, and peripheral controllers on a single chip, distinct from a microcontroller (MCU) which typically has embedded flash and simpler peripherals. The STM32MP157FAD7 belongs to the class of heterogeneous multicore MPUs, which combine application-class cores (Cortex-A7) with a real-time core (Cortex-M4) to handle both high-level operating systems and time-critical tasks. This architecture enables a single chip to replace a multi-chip solution, reducing system cost and complexity. Key features include a rich set of connectivity options: dual Ethernet (10/100/1000 Mbps), USB 2.0 OTG, multiple UARTs, SPI, I2C, CAN FD, and SDMMC interfaces. It also integrates a 3D GPU (OpenGL ES 2.0), a 2D graphics accelerator, and a display controller supporting up to 1080p resolution, making it suitable for human-machine interface (HMI) applications. The device supports external DDR3/DDR3L/LPDDR2 memory with a 16-bit bus, and includes a comprehensive security suite with cryptographic accelerators and secure boot. The STM32MP157FAD7 is built on a 28nm FD-SOI process, offering a balance of performance and power efficiency. The dual Cortex-A7 cores provide up to 650 MHz each, while the Cortex-M4 runs at 209 MHz, enabling real-time control. The device includes a memory protection unit (MPU) for each core, ensuring isolation between the application and real-time domains. The power management unit (PMU) supports multiple low-power modes, including standby and shutdown, with wake-up sources from GPIO, RTC, and Ethernet. Typical applications include industrial PLCs, smart gateways, medical monitoring devices, and advanced HMI systems. The combination of high-performance processing, rich connectivity, and real-time capabilities makes it ideal for edge computing nodes that require both Linux-based applications and deterministic control. For example, in a smart factory, the STM32MP157FAD7 can run a Linux-based HMI while simultaneously controlling a robotic arm via the Cortex-M4 core. When designing with this device, careful attention must be paid to power sequencing and decoupling. The device requires multiple supply rails (VDD, VDD_IO, VDD_3V3, etc.) with specific power-up sequences. A dedicated PMIC (such as the STPMIC1) is recommended to manage the power rails and ensure proper sequencing. Additionally, the DDR memory interface requires careful PCB layout with controlled impedance and length matching to ensure signal integrity at high speeds.
STM32MP257F - Dual Cortex-A35 1.5GHz MPU | STMicroelectronics | Industrial IoT
The STMicroelectronics STM32MP257F is a high-performance heterogeneous microprocessor (MPU) combining a dual-core Arm Cortex-A35 64-bit application processor running at up to 1.5 GHz and a single Cortex-M33 real-time core at up to 400 MHz. It is designed for industrial IoT, smart factory, and edge computing applications, integrating advanced security features, rich connectivity, and a comprehensive set of peripherals, making it a versatile platform for Linux-based and real-time systems. A microprocessor (MPU) is a complete computing engine that typically runs a full operating system like Linux, in contrast to a microcontroller (MCU) which runs bare-metal or RTOS. The STM32MP257F belongs to the STM32MP2 series, which is part of the broader STM32 family of 32-bit Arm-based devices. This MPU sits at the top of the STM32 performance hierarchy, offering the processing power of an application processor with the real-time capabilities of a microcontroller core. Key features include a dual-core Cortex-A35 running up to 1.5 GHz, a Cortex-M33 at 400 MHz, and a dedicated 3D GPU for graphical user interfaces. It supports up to 2 GB of DDR4/LPDDR4 memory, providing ample bandwidth for data-intensive applications. The device also includes a hardware cryptographic accelerator, secure boot, and a TrustZone architecture for robust security. Technically, the STM32MP257F is built on a 28nm FD-SOI process, offering a balance of performance and power efficiency. It features a rich set of peripherals including multiple Ethernet ports (up to 2x GbE with TSN), USB 2.0/3.0, CAN-FD, and a wide range of serial interfaces. The dual-core architecture allows asymmetric multiprocessing (AMP) where the A35 cores run Linux while the M33 core handles real-time tasks, enabling a single-chip solution for complex systems. Typical applications include industrial PLCs, HMI panels, smart gateways, and edge AI devices. The combination of high-performance processing, real-time control, and rich connectivity makes it ideal for Industry 4.0 deployments where deterministic control and data processing are required. When designing with the STM32MP257F, careful attention must be paid to power sequencing and thermal management. The device requires multiple supply rails (1.8V, 3.3V, and core voltage) with proper sequencing to avoid latch-up. A thermal solution is recommended for sustained operation at maximum frequency, especially in enclosed industrial enclosures.
STM32MP257FAE3 - Dual Cortex-A7 + M4 MPU | STMicroelectronics
The STMicroelectronics STM32MP257FAE3 is a high-performance heterogeneous microprocessor (MPU) combining a dual-core Arm Cortex-A7 application processor and a Cortex-M4 microcontroller core in a single device. It is designed for industrial and embedded applications requiring both rich operating system support (Linux/Android) and real-time control. The device integrates advanced security features, rich connectivity, and a comprehensive set of peripherals, making it a versatile platform for a wide range of products. A microprocessor (MPU) is a general-purpose computing unit that executes complex operating systems and application software, typically requiring external memory (DDR, NAND, NOR) and storage. In contrast, a microcontroller (MCU) integrates memory, peripherals, and a simpler core for real-time, deterministic tasks. The STM32MP257FAE3 belongs to the STM32MP2 series, which is part of the broader STM32 family of 32-bit microcontrollers and microprocessors. This device bridges the gap between MCUs and high-end application processors, offering the best of both worlds: the real-time responsiveness of an MCU and the processing power of an MPU. Key features of the STM32MP257FAE3 include a dual-core Arm Cortex-A7 running up to 1.2 GHz, a Cortex-M4 core at 800 MHz, and a comprehensive set of peripherals including multiple UARTs, SPI, I2C, USB 2.0, Ethernet, and camera interfaces. It supports up to 4 GB of external DDR4/LPDDR4 memory and features a rich set of security functions such as secure boot, cryptographic accelerators, and a TrustZone-enabled architecture. The device is available in a TFBGA package with 448 balls, offering a compact footprint for space-constrained designs. From a technical depth perspective, the STM32MP257FAE3 leverages ST's advanced 28nm FD-SOI process technology, which provides low power consumption and high performance. The heterogeneous architecture allows for efficient task partitioning: the Cortex-A7 cores handle high-level operating systems and complex algorithms, while the Cortex-M4 core handles real-time control and low-latency I/O. The device also includes a dedicated GPU for graphics acceleration, making it suitable for human-machine interface (HMI) applications. Typical applications include industrial automation, smart gateways, medical devices, and consumer electronics. In industrial automation, the STM32MP257FAE3 can serve as the central controller for PLCs, robotics, and vision systems, leveraging its real-time capabilities and rich connectivity. In smart gateways, it can aggregate data from multiple sensors and protocols, providing edge computing and cloud connectivity. The device's security features make it ideal for secure payment terminals and IoT devices requiring secure boot and encrypted communication. When designing with the STM32MP257FAE3, careful attention must be paid to power supply sequencing and decoupling. The device requires multiple voltage rails (1.8V, 3.3V, and core voltage) with proper sequencing to ensure reliable operation. A well-designed PCB with adequate ground planes and decoupling capacitors is essential to minimize noise and ensure signal integrity, especially for high-speed interfaces like DDR and Ethernet.
STM32N645VGT6 - 800MHz Arm Cortex-M55 MCU | STMicroelectronics
The STMicroelectronics STM32N645VGT6 is a high-performance microcontroller based on the Arm Cortex-M55 core, operating at up to 800 MHz. It is part of the STM32N6 series, designed for edge AI and advanced signal processing applications. The device integrates 4 MB of flash memory and 1.6 MB of SRAM, along with a Neural Processing Unit (NPU) for accelerated machine learning inference. It is housed in a 100-pin LQFP package (LQFP100) with a 14x14 mm body and 0.5 mm pitch, suitable for surface-mount assembly. What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory (RAM and flash), and programmable input/output peripherals on a single chip. Microcontrollers are the backbone of embedded systems, ranging from simple household appliances to complex industrial automation. The STM32N645VGT6 belongs to the STM32 family, which is a broad portfolio of 32-bit microcontrollers based on Arm Cortex cores, offering scalability from low-power to high-performance variants. Within the hierarchy, it sits as a high-performance MCU with integrated AI acceleration, bridging the gap between traditional MCUs and application processors. Key features of the STM32N645VGT6 include the Arm Cortex-M55 core with Arm Helium technology for DSP and ML performance, a dedicated NPU delivering up to 600 GOPS for edge AI inference, and a rich set of connectivity options including Ethernet, USB, CAN-FD, and multiple SPI/I2C/UART interfaces. The device also features advanced security with TrustZone, cryptographic accelerators, and secure boot. With 4 MB of flash and 1.6 MB of SRAM, it can handle complex applications without external memory in many cases. Technically, the STM32N645VGT6 leverages the Cortex-M55 architecture, which introduces Armv8.1-M mainline extensions, including M-profile Vector Extension (MVE) for efficient DSP and ML workloads. The integrated NPU offloads neural network inference from the CPU, enabling real-time AI applications with lower power consumption compared to CPU-only processing. The device operates over a supply voltage range of 1.71V to 3.6V and supports an ambient temperature range of -40°C to +85°C (industrial grade). Typical applications include smart home devices, industrial predictive maintenance, vision-based quality inspection, voice-controlled systems, and battery-powered IoT edge nodes. The combination of high CPU performance, NPU, and rich peripherals makes it suitable for applications that require on-device AI processing without cloud connectivity. When designing with this device, ensure adequate decoupling on all power supply pins and follow the layout guidelines in the datasheet for high-speed interfaces. The NPU requires careful power sequencing and thermal management, especially when running sustained inference workloads. Use the STM32CubeMX tool for pin configuration and peripheral initialization to accelerate development.
STM32N645ZGT6 - 800MHz Cortex-M55 MCU with 4MB Flash | STMicroelectronics
The STMicroelectronics STM32N645ZGT6 is a high-performance Arm Cortex-M55 based microcontroller with an operating frequency of up to 800 MHz, delivering exceptional compute capability for advanced embedded applications. It integrates 4 MB of flash memory and 2.5 MB of SRAM, along with a rich set of peripherals including Ethernet, USB, and advanced security features. The device is housed in a 144-pin LQFP package (LQFP144, 20x20 mm), making it suitable for space-constrained yet performance-demanding designs. What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory (flash and SRAM), and programmable input/output peripherals on a single chip. Microcontrollers are the brain of countless electronic devices, from automotive engine control units to industrial robots and IoT sensors. In the system hierarchy, a microcontroller sits between a microprocessor (which requires external memory and peripherals) and a system-on-chip (SoC, which integrates more complex subsystems like GPUs). The STM32N645ZGT6 belongs to the STM32N6 series, which is STMicroelectronics' flagship high-performance MCU family, positioned above the STM32H7 series in terms of raw processing power and AI acceleration capabilities. Key features of the STM32N645ZGT6 include an Arm Cortex-M55 core with Arm Helium technology for DSP and AI workloads, a Neural Processing Unit (NPU) capable of up to 600 GOPS for on-device machine learning, and a comprehensive security suite including TrustZone, cryptographic accelerators, and secure boot. The device supports a wide supply voltage range of 1.71V to 3.6V and operates over a temperature range of -40°C to +125°C, making it suitable for industrial and automotive environments. It also features a rich set of connectivity options, including 10/100 Ethernet MAC, USB 2.0 OTG, multiple SPI, I2C, UART, and CAN-FD interfaces. From a technical architecture perspective, the STM32N645ZGT6 leverages a dual-core design with the Cortex-M55 and an independent power management unit, enabling efficient handling of real-time tasks and AI inference simultaneously. The inclusion of the NPU offloads intensive neural network computations from the CPU, freeing it for control and communication tasks. The device also incorporates advanced memory protection and error correction codes (ECC) on both flash and SRAM, enhancing reliability in safety-critical applications. Typical applications for the STM32N645ZGT6 include industrial automation and robotics, where its high-speed processing and real-time control capabilities are essential; smart home and IoT gateways, leveraging its connectivity and AI features for edge intelligence; and medical devices, where its security and reliability are paramount. The device's ability to run complex algorithms locally reduces latency and bandwidth requirements, making it ideal for edge AI applications. When designing with the STM32N645ZGT6, engineers should pay careful attention to power supply decoupling, using multiple 100nF and 10uF capacitors close to the power pins to ensure stable operation at high frequencies. The device's high-speed interfaces require careful PCB layout to maintain signal integrity, including controlled impedance traces and proper grounding. Additionally, the thermal design must account for the power dissipation of the core and NPU, potentially requiring a heatsink or forced airflow in high-load scenarios.
STM32N657VGT6 - 600MHz Cortex-M7 MCU with 2MB Flash | STMicroelectronics
The STMicroelectronics STM32N657VGT6 is a high-performance Arm Cortex-M7 microcontroller operating at up to 600 MHz, delivering exceptional compute capability for advanced embedded applications. It features 2 MB of flash memory and 1.5 MB of SRAM, along with a rich set of peripherals including multiple communication interfaces, advanced timers, and a comprehensive security suite. The device is housed in a 100-pin LQFP package (LQFP100), providing a compact yet powerful solution for industrial, consumer, and IoT designs. What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It integrates a processor core, memory (flash and SRAM), and programmable input/output peripherals on a single chip. Microcontrollers are the brains of countless devices, from automotive engine control units to smart home sensors. In the system hierarchy, the STM32N657VGT6 sits at the application processor level, capable of running complex algorithms and real-time control tasks, often serving as the central processing unit in a system-on-chip (SoC) architecture. Key features of the STM32N657VGT6 include a 600 MHz Arm Cortex-M7 core with double-precision floating-point unit (FPU), 2 MB of flash memory, 1.5 MB of SRAM, and a comprehensive set of peripherals. It supports a wide range of communication interfaces including Ethernet, USB 2.0, CAN-FD, SPI, I2C, UART, and SDMMC. The device also integrates advanced security features such as a hardware cryptographic accelerator, true random number generator (TRNG), and secure boot, making it suitable for secure IoT applications. The operating temperature range is -40°C to +125°C, and the supply voltage is 1.71V to 3.6V. Technically, the STM32N657VGT6 is built on a high-performance process technology, enabling 600 MHz operation while maintaining low power consumption. The Cortex-M7 core includes an instruction cache, data cache, and a memory protection unit (MPU), enhancing real-time performance and reliability. The device supports external memory interfaces, allowing expansion of code and data storage. The rich peripheral set is complemented by a flexible clock tree, multiple power modes, and a comprehensive set of development tools, including the STM32Cube ecosystem. Typical applications include industrial control systems, motor control, advanced human-machine interfaces (HMI), IoT gateways, and edge AI devices. The high clock speed and FPU make it ideal for digital signal processing (DSP) tasks, while the security features enable secure firmware updates and data protection. The device is also suitable for audio processing, smart home hubs, and robotics. When designing with the STM32N657VGT6, ensure adequate decoupling on all power supply pins and a proper ground plane for high-speed signal integrity. The device requires a stable clock source, typically a 25 MHz crystal for Ethernet, and careful layout of the high-speed interfaces to minimize EMI. The STM32CubeMX tool can be used to configure the device and generate initialization code, simplifying development.
STM32N657ZGT6 - 600MHz Cortex-M55 MCU with 4MB Flash | STMicroelectronics
The STMicroelectronics STM32N657ZGT6 is a high-performance Arm Cortex-M55 based microcontroller with a maximum clock speed of 600 MHz, delivering exceptional compute capability for advanced embedded applications. It integrates 4 MB of flash memory and 3.2 MB of SRAM, enabling complex algorithms and large data buffers to be handled on-chip. The device is housed in a 144-pin LQFP package (LQFP144) with a 20x20 mm body, providing ample I/O for connectivity and control. What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory (flash for program storage, SRAM for data), and programmable input/output peripherals on a single chip. MCUs are the brains of countless devices, from automotive engine control units to smart home sensors. In the system hierarchy, the STM32N657ZGT6 sits at the application processor level, above simple 8-bit MCUs but below full application processors like those in smartphones, offering a balance of performance, power efficiency, and real-time responsiveness. Key features of the STM32N657ZGT6 include the Arm Cortex-M55 core with Arm Helium technology for DSP and ML acceleration, a rich set of communication interfaces (including Ethernet, USB, CAN FD, and multiple SPI/I2C/UART), advanced security features (TrustZone, cryptographic accelerators), and a comprehensive set of timers and analog peripherals. The device operates from 1.71V to 3.6V supply, with a temperature range of -40°C to +125°C, making it suitable for industrial and automotive environments. Technically, the STM32N657ZGT6 leverages the Armv8.1-M architecture, which introduces features like TrustZone for secure code execution and Helium vector extensions for signal processing. The 600 MHz clock, combined with a 4 MB flash and 3.2 MB SRAM, allows for sophisticated applications such as real-time audio processing, motor control with high-resolution PWM, and edge AI inference. The device also includes a hardware cryptographic module supporting AES, RSA, and ECC, ensuring secure communication. Typical applications include industrial automation (PLC, robotics), smart energy (smart meters, grid monitoring), advanced motor control (servo drives, drones), and edge AI (anomaly detection, predictive maintenance). The high-speed processing and extensive connectivity make it ideal for gateway devices that aggregate sensor data and communicate over Ethernet or wireless protocols. When designing with this MCU, pay attention to power supply decoupling: place 100nF capacitors close to each VDD pin and a bulk capacitor (e.g., 4.7uF) at the power entry. Also, ensure proper grounding for the exposed pad (EP) to enhance thermal performance. The device supports multiple boot modes, so configure the BOOT pins correctly for your application.
STM32U073RCT6 - Ultra-Low-Power Arm Cortex-M0+ MCU | STMicroelectronics
The STM32U073RCT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, based on the Arm Cortex-M0+ core. It operates at a maximum frequency of 56 MHz and features 256 KB of flash memory and 40 KB of SRAM. The device is housed in a 64-pin LQFP package (LQFP64) and is designed for a wide range of battery-powered and energy-efficient applications. What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory (flash and SRAM), and programmable input/output peripherals on a single chip. Microcontrollers are the backbone of embedded systems, enabling control, monitoring, and communication in devices ranging from consumer electronics to industrial automation. The STM32U073RCT6 belongs to the STM32U0 series, which is part of the broader STM32 family of 32-bit microcontrollers known for their performance, efficiency, and extensive peripheral integration. Key features of the STM32U073RCT6 include an ultra-low-power mode with a typical current consumption of 1.6 µA in standby mode, making it ideal for battery-operated devices. It integrates a 12-bit ADC with up to 16 channels, multiple timers, and a wide range of communication interfaces including I2C, SPI, USART, and LPUART. The device also supports USB 2.0 full-speed device mode, which is essential for many portable applications. The operating voltage range is from 1.65V to 3.6V, allowing flexible power supply design. From a technical perspective, the STM32U073RCT6 leverages a 90nm process technology that balances performance and power consumption. The Cortex-M0+ core is optimized for low-power operation, and the device includes a flexible power management unit with multiple low-power modes (Sleep, Stop, Standby) to minimize energy usage. The flash memory supports read-while-write, enabling firmware updates without halting the system. The device also includes a hardware cryptographic accelerator for AES-128/256, enhancing security for IoT applications. Typical applications include smart meters, portable medical devices, IoT sensors, and wearable electronics. The ultra-low-power consumption and rich peripheral set make it suitable for applications that require long battery life and reliable operation. For instance, in a smart meter, the STM32U073RCT6 can handle data acquisition, processing, and communication while maintaining low power consumption. When designing with this device, it is crucial to pay attention to the power supply decoupling and the layout of the crystal oscillator. Use a 1µF and 100nF capacitor close to each VDD pin, and place the crystal and its load capacitors as close as possible to the OSC pins to ensure stable clock generation. Additionally, configure the GPIO pins appropriately to avoid floating inputs, which can increase power consumption.
STM32U083ZCT6 - Ultra-Low-Power Cortex-M0+ MCU | STMicroelectronics
The STM32U083ZCT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, based on the ARM Cortex-M0+ core. It operates at a maximum frequency of 56 MHz and features 256 KB of flash memory and 40 KB of SRAM. The device is housed in a 144-pin LQFP package (LQFP144) and is designed for a wide range of battery-powered and energy-efficient applications. What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory (flash and SRAM), and programmable input/output peripherals on a single chip. Microcontrollers are the backbone of embedded systems, enabling control, monitoring, and communication in devices ranging from consumer electronics to industrial automation. The STM32U0 series is part of the broader STM32 family, which is a leading ARM-based MCU platform known for its scalability, performance, and rich peripheral set. Key features of the STM32U083ZCT6 include multiple low-power modes (Sleep, Stop, Standby, and Shutdown) with typical current consumption as low as 100 nA in Standby mode, making it ideal for energy-harvesting and battery-operated devices. It integrates a 12-bit ADC, multiple timers, communication interfaces (I2C, SPI, USART, LPUART), and an LCD controller, providing a comprehensive solution for sensor hubs, smart meters, and portable medical devices. The device also supports a wide supply voltage range from 1.65V to 3.6V, ensuring compatibility with various power sources. Technically, the STM32U083ZCT6 leverages ST's advanced ultra-low-power process technology, which optimizes leakage current and dynamic power consumption. The Cortex-M0+ core is a 32-bit processor with a von Neumann architecture, offering a good balance between performance and energy efficiency. The MCU includes a memory protection unit (MPU) for enhanced security and a nested vectored interrupt controller (NVIC) for efficient interrupt handling. The LCD controller supports up to 8x40 or 4x44 segments, enabling direct drive of segment LCDs without external drivers. Typical applications include smart home devices, wearable fitness trackers, industrial sensors, and portable medical monitoring equipment. The ultra-low-power consumption extends battery life in these applications, while the rich peripheral set reduces system cost and complexity. For example, in a smart meter, the STM32U083ZCT6 can manage data acquisition, display, and communication while operating for years on a single battery. When designing with this MCU, it is crucial to implement proper power supply decoupling with 100 nF capacitors close to each VDD pin and a bulk capacitor (e.g., 4.7 uF) on the main supply. Additionally, the use of the low-power modes requires careful configuration of the RTC and wakeup sources to achieve the desired power budget. The device supports in-circuit programming and debugging via SWD, facilitating development and production.
STM32U535RET6 - Ultra-Low-Power Cortex-M33 MCU | STMicroelectronics
The STM32U535RET6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, built around the high-performance Arm® Cortex®-M33 core with TrustZone® and FPU. It operates at up to 160 MHz, delivering 240 DMIPS, and integrates 512 KB of flash memory and 274 KB of SRAM. The device is housed in a 64-pin LQFP (10x10 mm) package, making it suitable for space-constrained, battery-powered applications. 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.
STM32U545RET6 - Ultra-Low-Power Cortex-M33 MCU | STMicroelectronics
The STM32U545RET6 is an ultra-low-power microcontroller from STMicroelectronics, featuring a high-performance Arm® Cortex®-M33 32-bit RISC core with TrustZone® and FPU. It operates at up to 160 MHz and delivers 240 DMIPS, making it suitable for a wide range of power-sensitive applications. The device integrates 512 KB of flash memory and 274 KB of SRAM, along with advanced cryptographic hardware acceleration. It is housed in a 64-pin LQFP package (10x10 mm), offering a compact footprint for space-constrained designs. An ultra-low-power microcontroller (MCU) is a system-on-chip that combines a processor core, memory, and peripherals on a single integrated circuit, optimized for minimal power consumption while maintaining computational performance. The STM32U5 series represents the pinnacle of STMicroelectronics' low-power portfolio, targeting battery-powered and energy-harvesting applications. These MCUs are part of the broader Arm Cortex-M ecosystem, which includes a wide range of microcontrollers from various manufacturers, all sharing a common instruction set and development tools. Key features of the STM32U545RET6 include its 160 MHz Arm Cortex-M33 core with TrustZone for secure execution, 512 KB flash, 274 KB SRAM, and a rich set of peripherals including multiple UARTs, SPIs, I2Cs, USB, and advanced analog capabilities. The device also integrates a hardware cryptographic accelerator supporting AES, RSA, and ECC, along with a true random number generator (TRNG) for secure applications. Its ultra-low-power modes, including shutdown, standby, and stop modes, enable extended battery life in IoT and wearable devices. From a technical depth perspective, the STM32U545RET6 leverages ST's advanced 40nm process technology, which contributes to its exceptional power efficiency. The Cortex-M33 core includes a DSP instruction set and a floating-point unit (FPU) for signal processing tasks. The TrustZone technology provides hardware-enforced isolation between secure and non-secure software, essential for applications requiring robust security. The device also features a sophisticated clocking system with multiple PLLs and an internal 16 MHz RC oscillator, reducing external component count. Typical applications include smart wearables, medical monitoring devices, industrial sensors, and secure IoT nodes. Its combination of low power, high performance, and security makes it ideal for battery-operated devices that require advanced processing and secure communication. For instance, in a smartwatch, the STM32U545RET6 can handle sensor fusion, display control, and wireless protocol stacks while maintaining long battery life. When designing with this device, pay careful attention to power supply decoupling and PCB layout to minimize noise and ensure reliable operation. Use the multiple low-power modes effectively to extend battery life, and leverage the hardware crypto accelerator to offload security processing from the CPU. The device supports a wide operating voltage range of 1.71V to 3.6V, allowing direct battery connection in many cases.
STM32U575RGT6 - Ultra-Low-Power Cortex-M33 MCU | STMicroelectronics
The STM32U575RGT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, built around the high-performance Arm® Cortex®-M33 RISC core with TrustZone® and FPU. It operates at up to 160 MHz and provides 1 Mbyte of Flash memory and 786 KB of SRAM, delivering 240 DMIPS of processing power. The device is housed in a 64-pin LQFP (10x10 mm) package, making it suitable for space-constrained embedded applications. 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.
STM32U585RGT6 - Ultra-Low-Power Cortex-M33 MCU | STMicroelectronics
The STM32U585RGT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M33 processor core with TrustZone® for Armv8-M, DSP, and floating-point unit (FPU). It operates at a frequency of up to 160 MHz, delivering 240 DMIPS of processing power. The device is part of the STM32U5 series, which extends the STM32 ultra-low-power portfolio with advanced security features and energy efficiency. What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory (Flash and SRAM), and programmable input/output peripherals on a single chip. Microcontrollers are the brains of countless electronic devices, from automotive engine control units to wearable health monitors. The STM32U585RGT6 fits into the hierarchy of microcontrollers → 32-bit MCUs → Arm Cortex-M33 MCUs → ultra-low-power MCUs, representing the pinnacle of energy-efficient processing with integrated security. Key features of the STM32U585RGT6 include up to 2 MB of Flash memory and 786 KB of SRAM, providing ample space for complex applications. The device supports a power supply range of 1.71 V to 3.6 V and operates over a temperature range of -40 °C to +85/125 °C. It includes a low-power background autonomous mode (LPBAM) that allows autonomous peripherals with DMA, reducing power consumption in standby modes. The MCU also features advanced cryptographic hardware acceleration, including AES, RSA, and ECC, making it suitable for secure IoT applications. Technically, the STM32U585RGT6 leverages ST's patented ultra-low-power technology, FlexPowerControl, which enables fine-grained power management. The Cortex-M33 core with TrustZone provides hardware-enforced isolation for secure code execution, a critical feature for applications handling sensitive data. The device also includes a rich set of communication interfaces, such as USART, SPI, I2C, USB, and CAN, along with advanced analog peripherals like ADCs, DACs, and comparators. Typical applications include smart meters, industrial sensors, wearable devices, medical monitoring equipment, and secure IoT nodes. The combination of ultra-low power consumption, high performance, and robust security makes it ideal for battery-powered devices that require long operational life and data protection. When designing with this device, engineers should leverage the LPBAM feature to minimize power consumption in active and standby modes. Proper decoupling of the power supply and careful PCB layout are essential to maintain signal integrity and achieve the specified performance. The device's extensive documentation and STM32Cube ecosystem facilitate rapid development and debugging.
STM32U595ZJT6 - Ultra-Low-Power Cortex-M33 MCU 160MHz 4MB Flash | STMicroelectronics
The STM32U595ZJT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, based on the high-performance Arm Cortex-M33 RISC core with TrustZone and FPU. It operates at a frequency of up to 160 MHz and features 4 Mbytes of Flash memory and 2.5 Mbytes of SRAM, making it suitable for a wide range of power-sensitive applications. An ultra-low-power microcontroller (MCU) is a type of integrated circuit designed to minimize energy consumption while providing computational capabilities. It typically integrates a processor core, memory, and peripherals on a single chip, enabling battery-powered or energy-harvesting devices to operate for extended periods. The STM32U5 series represents the pinnacle of ST's ultra-low-power portfolio, offering advanced power management features such as multiple low-power modes, adaptive voltage scaling, and a highly efficient DC-DC converter. Key features of the STM32U595ZJT6 include a 160 MHz Arm Cortex-M33 core with TrustZone for hardware-enforced security, 4 Mbytes of Flash memory, 2.5 Mbytes of SRAM, and a rich set of peripherals including multiple UARTs, SPIs, I2Cs, USB, and advanced analog capabilities. The device also integrates a cryptographic accelerator, a true random number generator, and a secure boot mechanism, making it ideal for IoT and security-critical applications. From a technical perspective, the STM32U595ZJT6 leverages a 40nm process technology, enabling exceptional energy efficiency. It supports a wide supply voltage range from 1.71V to 3.6V, and its power consumption can be as low as 19 µA in standby mode with RTC. The MCU also features a Chrom-ART Accelerator for graphics, a digital filter for sigma-delta modulators, and a 14-bit ADC with hardware oversampling, providing high precision for sensor interfacing. Typical applications include smart meters, wearable devices, medical monitoring equipment, industrial sensors, and IoT edge nodes. The combination of ultra-low power, high performance, and advanced security makes it a preferred choice for designers who need to balance energy efficiency with computational capability. When designing with this device, it is crucial to pay attention to the power supply decoupling and the selection of the appropriate low-power mode to maximize battery life. The STM32CubeU5 software package provides comprehensive drivers and examples to accelerate development.
STM32U599ZJT6 - Ultra-Low-Power Cortex-M33 MCU 160MHz 4MB Flash | ST
The STM32U599ZJT6 is an ultra-low-power microcontroller from STMicroelectronics' STM32U5 series, built around the high-performance Arm Cortex-M33 32-bit RISC core with TrustZone and FPU. It operates at up to 160 MHz and integrates 4 MB of Flash memory and 2.5 MB of SRAM, making it suitable for a wide range of power-conscious embedded applications. The device is available in a 144-pin LQFP package (20x20 mm) and supports a supply voltage range of 1.71 V to 3.6 V, with an operating temperature range of -40°C to +85°C or +125°C depending on the variant. A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory (Flash and SRAM), and programmable input/output peripherals. The STM32U5 series represents the ultra-low-power segment of STM32 MCUs, targeting battery-powered and energy-harvesting applications where power efficiency is critical. The Cortex-M33 core adds TrustZone security and DSP instructions, positioning this MCU within the broader hierarchy of Arm-based embedded processors, from simple 8-bit MCUs to high-end application processors. Key features of the STM32U599ZJT6 include the Arm Cortex-M33 core with TrustZone, a floating-point unit (FPU), 4 MB of dual-bank Flash memory, and 2.5 MB of SRAM. It supports a rich set of peripherals, including multiple UART, SPI, I2C, USB, and advanced analog features such as a 14-bit ADC. The device also integrates a Chrom-ART Accelerator for graphics and a hardware cryptographic accelerator, enhancing its suitability for secure and display-oriented applications. The ultra-low-power design incorporates FlexPowerControl, allowing independent power domains and low-power background autonomous mode (LPBAM) for peripherals with DMA. From a technical depth perspective, the STM32U599ZJT6 leverages ST's patented ultra-low-power technology, achieving exceptional energy efficiency. The Cortex-M33 core with TrustZone provides hardware-enforced security, isolating critical code and data. The device includes a rich set of communication interfaces, including Ethernet, USB OTG, and CAN FD, enabling connectivity in industrial and IoT applications. The 144-pin LQFP package offers a balance between I/O count and board space, with a thermal resistance suitable for moderate power dissipation. Typical applications include smart meters, medical devices, wearable electronics, and industrial sensors. The ultra-low-power consumption and advanced security features make it ideal for battery-powered devices that require long operational life and secure data handling. The high Flash and SRAM capacities support complex firmware and real-time operating systems. When designing with this MCU, careful attention to power supply decoupling and PCB layout is essential to achieve the specified low-power performance. The device supports multiple low-power modes, and designers should leverage the LPBAM feature to minimize power consumption in standby states. Additionally, the TrustZone security features require proper configuration to ensure secure boot and runtime isolation.
STM32WB30CEU6 - 2.4GHz Wireless MCU with BLE 5.0 | STMicroelectronics
The STM32WB30CEU6 is a dual-core wireless microcontroller from STMicroelectronics, integrating a 32-bit Arm Cortex-M4 application processor running at 64 MHz and a dedicated Arm Cortex-M0+ network processor for the 2.4 GHz radio stack. It supports Bluetooth Low Energy 5.0, 802.15.4 (Zigbee, Thread), and proprietary 2.4 GHz protocols, making it a versatile solution for IoT and smart connected devices. The device is housed in a 48-pin UFQFPN package (7x7 mm) with an exposed pad, offering a compact footprint for space-constrained designs. A wireless MCU (Microcontroller Unit) is a system-on-chip that combines a general-purpose microcontroller core with an integrated radio transceiver, enabling wireless communication without external RF chips. In the system hierarchy, a wireless MCU sits above a standalone MCU and below a full application processor, providing a balance of processing power, connectivity, and low power consumption. The STM32WB30CEU6 exemplifies this category by pairing a powerful Cortex-M4 for application code with a Cortex-M0+ that offloads the real-time radio stack, ensuring deterministic wireless performance. Key features include 512 KB of flash memory and 96 KB of SRAM, sufficient for complex applications and over-the-air (OTA) updates. The radio supports BLE 5.0 with 2 Mbps data rate, long range, and advertising extensions, as well as Zigbee 3.0 and Thread for mesh networking. The device operates from 1.71V to 3.6V, with multiple low-power modes including Sleep, Stop, and Standby, consuming as low as 1.6 uA in Standby mode with RTC. It also integrates a 12-bit ADC, multiple timers, and a rich set of communication interfaces (SPI, I2C, USART, LPUART). The dual-core architecture is a key differentiator: the Cortex-M0+ runs the wireless protocol stack (e.g., BLE stack) independently, while the Cortex-M4 runs the user application. This separation improves real-time performance and simplifies certification. The device also features a hardware cryptographic accelerator (AES-256) and a true random number generator (TRNG) for secure connections. Typical applications include smart home devices (sensors, locks, lighting), industrial wireless sensors, healthcare wearables, and asset tracking. The integrated radio and low power consumption make it ideal for battery-powered IoT nodes that require long battery life and reliable wireless connectivity. When designing with the STM32WB30CEU6, pay attention to the RF layout: use a 32 MHz crystal for the radio and a 32.768 kHz crystal for the RTC, and ensure a clean ground plane under the antenna. The device supports firmware updates via the built-in bootloader, simplifying field updates.