Microcontrollers

Products (20,000+)

STM32L4A6VGT6 - 80MHz Cortex-M4 MCU | STMicroelectronics
STM32L4A6VGT6

STM32L4A6VGT6 - 80MHz Cortex-M4 MCU | STMicroelectronics

STMicroelectronics STM32L4A6VGT6 is an ultra-low-power 32-bit microcontroller based on the Arm Cortex-M4 RISC core, operating up to 80 MHz with 1 MB of embedded Flash memory in a 100-pin LQFP package. The device combines a 320 KB SRAM configuration, a floating-point unit, USB OTG, LCD support, and AES hardware encryption for compact embedded-control designs. A microcontroller is a programmable semiconductor that integrates a processor core, nonvolatile program memory, volatile data memory, peripherals, and communication interfaces on one package. The STM32L4 belongs to the MCU hierarchy within embedded processors and semiconductor control devices. Its Cortex-M4 architecture executes firmware efficiently while programmable timers, communication peripherals, and analog interfaces support real-time sensing, communications, and actuator control. Principal features include an 80 MHz operating frequency, 1 MB of Flash program storage, 320 KB of SRAM, 32-bit processing, and a hardware floating-point unit. USB OTG supports connected USB device and host-oriented designs, while the LCD interface targets embedded human-machine interfaces. AES hardware acceleration improves encrypted-data throughput without assigning cryptography to the central processing unit. The STM32L4A6VGT6 is especially useful when moderate processing performance and energy-conscious operation are required without moving to a larger package. Its 100-pin LQFP (14x14 mm) format exposes substantially more I/O than smaller MCU packages, supporting multiple external peripherals and mixed-signal interfaces. The Arm Cortex-M4 core and integrated floating-point hardware also provide a practical balance between computational capability, embedded software ecosystem, and board complexity. Typical applications include industrial sensor controllers, USB-connected data acquisition units, secure access-control equipment, low-power environmental monitors, compact human-machine interfaces, and connected battery-powered instruments. In these systems, the microcontroller can execute control logic, process sensor data, operate timers, and manage communications while retaining a broad set of peripheral interfaces. PCB design should follow the manufacturer pinout and reference-manual guidance for decoupling, clock stability, reset circuitry, and exposed interface routing. Confirm every peripheral assignment, power-domain requirement, and alternate-function selection in the STM32L4A6xG documentation before finalizing the schematic and PCB footprint. This product page combines manufacturer device positioning, distributor identification, package and memory details, drop-in same-family options, application guidance, and design-focused engineering notes to support faster component evaluation and sourcing decisions.

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STM32L4P5VGT6 - Ultra-Low-Power Cortex-M4 MCU | STMicroelectronics
STM32L4P5VGT6

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.

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STM32L4Q5AGI6 - 120MHz Cortex-M4 1MB MCU | STMicroelectronics
STM32L4Q5AGI6

STM32L4Q5AGI6 - 120MHz Cortex-M4 1MB MCU | STMicroelectronics

The STMicroelectronics STM32L4Q5AGI6 is an ultra-low-power 32-bit Arm Cortex-M4 microcontroller with FPU, rated up to 120 MHz, 1 MB of Flash, and 320 KB of SRAM in a 169-UFBGA 7 mm × 7 mm package. It delivers up to 150 DMIPS while combining low-power operation with integrated USB OTG, DFSD, AES, and PKA capabilities. A microcontroller is a programmable system-on-chip that integrates a CPU core, nonvolatile program memory, volatile data memory, peripherals, and interface controllers on one semiconductor device. The STM32L4 family belongs to the Arm Cortex-M microcontroller hierarchy and targets embedded control, communications, sensor processing, human-machine-interface, and low-power edge applications. Arm Cortex-M4 processors use the Thumb instruction set and support efficient interrupt-driven real-time control. Verified headline features include an Arm Cortex-M4 core, 120 MHz maximum operating frequency, 150 DMIPS performance, 1 MB Flash, and 320 KB SRAM. The part also provides an FPU, LCD-TFT support, USB OTG, DFSD, hardware AES, and PKA. These resources combine high processing throughput with a broad peripheral set, reducing the need for external memory, cryptographic accelerators, storage controllers, and display-interface logic in compact embedded systems. The STM32L4 architecture targets power-constrained products while retaining a broad set of communication and security interfaces. Flash capacity supports substantially larger firmware than smaller Cortex-M devices, while SRAM accommodates buffers, protocol stacks, graphics state, and real-time workloads. Hardware AES and PKA are particularly useful when a design must protect data or execute cryptographic operations with less software overhead. USB OTG expands connectivity options for peripherals, storage, charging, and host or device roles. Typical applications include connected industrial sensors, USB data acquisition, secure access-control terminals, low-power data loggers, compact human-machine-interface controllers, and embedded gateways. The 169-UFBGA package minimizes board area but requires careful escape routing, inspection, and assembly planning. Because the complete exposed-pad pin map and detailed electrical limits are not contained in the supplied search records, engineers should confirm them against the official STMicroelectronics STM32L4Q5xx datasheet before layout or firmware deployment. For robust implementation, preserve the datasheet-required decoupling near supply pins, route high-speed and sensitive signals with controlled return paths, and validate standby, wake-up, USB, and peripheral timing in the final board. Programming tooling, bootloader behavior, clock configuration, and low-power modes should also be verified from the official device documentation rather than inferred from distributor summaries. This page combines verified manufacturer and distributor information, procurement links, application engineering guidance, and explicit data gaps for pin-level and pricing validation. It is intended to accelerate component discovery while preserving traceability to the official STM32L4Q5xx datasheet and current distributor records as of 2026-10-23.

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STM32L4Q5CGT6 - 1MB Cortex-M4 MCU | STMicroelectronics | Ultra-Low-Power
STM32L4Q5CGT6

STM32L4Q5CGT6 - 1MB Cortex-M4 MCU | STMicroelectronics | Ultra-Low-Power

The STMicroelectronics STM32L4Q5CGT6 is an ultra-low-power ARM Cortex-M4 32-bit microcontroller+FPU with 150 DMIPS, 120 MHz max CPU clock, and 1 MB of on-chip Flash, housed in a 48-pin LQFP (7x7 mm) package. It integrates 320 KB SRAM, Chrom-ART graphics accelerator, USB OTG full-speed, DFSDM (digital filter for sigma-delta modulators), MIPI-DSI host, and an extensive analog/mixed-signal peripheral set including two 12-bit ADCs, two 12-bit DACs, ultra-low-power comparators, and op-amps. An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, program/data memory, and programmable I/O peripherals. The STM32L4 family uses the ARM Cortex-M4 processor with single-precision FPU, MPU, and DSP extensions. Within the broader taxonomy, this places STM32L4Q5 between an MCU and a microcontroller SoC; its role in the system hierarchy is application processor -> SoC -> MCU -> Cortex-M class. Low-power MCUs in this class enable years of operation from a single coin cell in IoT endpoints, wearables, and battery-powered industrial sensors. Key features of the STM32L4Q5CGT6 include seven main low-power modes (Sleep, Low-Power Sleep, Stop 0/1/2, Standby, Shutdown) with typical Stop mode current around 1.1 uA and Standby current of 30 nA with RTC. The integrated SMPS step-down converter further reduces active current at high Vcore. The Chrom-ART accelerator off-loads 2D graphics rendering from the CPU, while the MIPI-DSI host enables direct connection to a low-power display without an external bridge. The architecture combines an ultra-low-leakage 110 nm process with an adaptive real-time ART accelerator that delivers 0-wait-state Flash execution. Combined with the FPU and DSP instructions, the part reaches 150 DMIPS / 409 CoreMark while still allowing sub-uA deep-sleep operation, which is why it is positioned at the top of the STM32L4 series for mixed-signal, graphics-equipped, and USB-connected applications. Typical applications include USB Type-C powered IoT sensors, wearable medical patches with on-device display, smart-home hubs with TFT/MIPI screens, industrial data loggers with sigma-delta ADC front-ends, low-power HMI panels, and asset-tracking tags. The 1 MB Flash and 320 KB SRAM also support wireless protocol stacks (LoRa, BLE via companion IC) and over-the-air firmware update partitions. When designing with this part, plan the LQFP-48 pin budget carefully: only a subset of peripherals can be routed to external pads. Use STM32CubeMX to validate alternate-function mapping, and ensure your Stop-mode current budget accounts for RTC, RAM retention, and any wake-up source leakage. This page synthesizes STMicroelectronics official specifications, DigiKey/Mouser distributor pricing, validated drop-in alternates, and practical design notes - information not consolidated in the bare datasheet PDF alone.

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STM32L4Q5VGT6 - Ultra-Low-Power ARM Cortex-M4 MCU | STMicroelectronics
STM32L4Q5VGT6

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.

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STM32L4R5QGI6 - 120MHz Cortex-M4 MCU, 1MB Flash | STMicroelectronics
STM32L4R5QGI6

STM32L4R5QGI6 - 120MHz Cortex-M4 MCU, 1MB Flash | STMicroelectronics

STMicroelectronics STM32L4R5QGI6 is an ultra-low-power 32-bit Arm Cortex-M4 microcontroller with FPU, 120 MHz maximum clock frequency, and 1 MB of Flash memory in a 132-pin UFBGA package. The device operates from a 1.71 V to 3.6 V supply and combines USB OTG, DFSD storage support, extensive GPIO, and low-power sensing capabilities in a compact 7 x 7 mm footprint. An ultra-low-power microcontroller is an embedded semiconductor designed to execute firmware while minimizing energy consumption during active operation, standby, shutdown, and battery-backed operation. The STM32L4R5 belongs to the STM32L4 family hierarchy of Arm Cortex-M4 MCUs, combining real-time processing efficiency, embedded Flash, SRAM, analog and digital peripherals, and multiple low-power modes for compact sensing and control systems. Key characteristics include a 120 MHz Arm Cortex-M4 core with floating-point unit, 1 MB of embedded Flash, a 1.71 V to 3.6 V operating supply range, and USB OTG connectivity. FlexPowerControl supports low-power operation, while the verified family data specifies 33 nA shutdown current and 305 nA VBAT mode consumption for RTC and 32 backup registers. DFSD support expands the design options available for secure digital storage and firmware data workloads. The STM32L4R5 architecture is tailored for high-throughput, low-power embedded control. Its 32-bit Cortex-M4 processor includes hardware floating-point support for efficient control-loop, signal-processing, and math-heavy calculations. A large pin count provides extensive peripheral connectivity, while the 7 x 7 mm UFBGA package supports compact PCB layouts when adequate assembly capability and careful escape-routing are available. Typical applications include industrial sensor nodes, compact data loggers, USB-connected embedded controllers, low-power industrial equipment, DFSD-based portable systems, and battery-operated sensing platforms. The combination of 1 MB Flash and USB OTG also makes the MCU suitable for firmware-intensive peripheral control where local code storage and direct USB connectivity are valuable. Designers should confirm the complete pin assignment, exposed-pad requirements, supported peripherals, decoupling network, and operating-temperature grade against the manufacturer datasheet before layout release. High-density UFBGA construction also requires assembly-capable interconnect, solder-mask-defined geometry, and adequate thermal design for the selected power budget. This page consolidates verified distributor specifications, same-brand drop-in candidates, lifecycle information, application guidance, and practical design cautions. It distinguishes electrically similar devices from verified same-package alternatives so engineers can evaluate replacement decisions without assuming that a shared family designation guarantees pin-to-pin compatibility.

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STM32L4R5QII6 - 120MHz Cortex-M4 MCU | STMicroelectronics
STM32L4R5QII6

STM32L4R5QII6 - 120MHz Cortex-M4 MCU | STMicroelectronics

The STMicroelectronics STM32L4R5QII6 is an ultra-low-power 32-bit Arm Cortex-M4 microcontroller rated up to 120 MHz, with 2 MB of Flash memory, 640 KB of SRAM, and a 132-pin UFBGA package measuring 7 x 7 mm. It belongs to the STM32L4+ family and combines an FPU, USB OTG, DFSD support, and low-power operating modes for compact embedded systems. An ultra-low-power microcontroller is an embedded processing device designed to maintain useful computation while minimizing energy use. The STM32L4+ architecture combines a microcontroller, real-time control capability, data storage, and communication peripherals within a single silicon device. Its low-power design is intended for battery-powered, industrial, sensor, and connected products where energy efficiency contributes directly to battery life or heat management. Key features include operation from a 1.71 V to 3.6 V power supply, a maximum core frequency of 120 MHz, and low-power consumption figures including 305 nA in VBAT mode for the RTC and backup registers and 33 nA in shutdown mode. The STM32L4R5QII6 also provides 110 I/O, USB OTG, an FPU, and DFSD capability, allowing one device to control peripherals, acquire data, and communicate with a host or service interface. The device combines 2 MB of Flash with 640 KB of SRAM to support firmware, boot code, data logging, graphics buffers, and real-time control workloads. Its Arm Cortex-M4 processor supports single-precision floating-point instructions, which accelerates control calculations and digital filtering without requiring a separate accelerator. The STM32L4+ low-power feature set includes FlexPowerControl, Batch Acquisition Mode, and dedicated backup-domain functions. Typical applications include industrial sensor nodes, compact data loggers, USB-connected instrumentation, low-power condition-monitoring equipment, and embedded control products with limited board area. The 7 x 7 mm UFBGA package supports dense designs, but it requires careful PCB layout, controlled assembly, and reliable power and decoupling networks to achieve predictable low-noise operation. Power design should preserve the 1.71 V to 3.6 V operating range and place the required bypass capacitors close to the supply and ground pins. Firmware and board validation should also account for the 110 I/O limit and the high pin density of the 132-pin package. Use the manufacturer pin-description and land-pattern tables when assigning tracks and planning assembly. This page combines manufacturer specifications, package details, drop-in candidates, application guidance, and engineering-oriented design notes to support MCU selection, PCB planning, firmware bring-up, and sourcing decisions.

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STM32L4R5VGT6 - 120MHz Cortex-M4 MCU 1MB | STMicroelectronics
STM32L4R5VGT6

STM32L4R5VGT6 - 120MHz Cortex-M4 MCU 1MB | STMicroelectronics

The STMicroelectronics STM32L4R5VGT6 is an ultra-low-power 32-bit Arm Cortex-M4 microcontroller with a floating-point unit, operating frequency up to 120 MHz, 1 MB of flash memory, and 640 KB of SRAM in a 100-pin LQFP package measuring 14 x 14 mm. It integrates USB OTG and DFSD support, combining general-purpose embedded control with low-power operation and digital signal-processing capability. An ultra-low-power microcontroller is designed to balance processing performance, energy efficiency, and real-time control. The STM32L4 family belongs to the Arm Cortex-M4 microcontroller category and combines a processor core, embedded memory, communications peripherals, analog interfaces, and security-oriented peripherals within one device. Its Cortex-M4 architecture supports efficient digital signal processing and floating-point calculations while maintaining a broad embedded-control feature set. Key characteristics include a 120 MHz maximum clock, 1 MB of flash, 640 KB of SRAM, and Arm Cortex-M4 instruction-set compatibility. USB OTG provides a standard peripheral interface for USB-connected control, data acquisition, or configuration applications. DFSD support expands the device's usefulness for external storage workflows, while the large SRAM capacity allows more data buffering and protocol processing to remain inside the microcontroller. The STM32L4R5VGT6 combines a high-performance 32-bit core with low-power-oriented design. Its 1 MB flash supports larger embedded applications, and its 100-pin LQFP package provides a high pin count for external peripheral connections. Operating-voltage information identifies 1.8 V, 2.5 V, and 3.3 V supply options, allowing the device to fit industrial, communications, consumer, and embedded-control platforms whose interfaces and external components match those voltage levels. Typical applications include USB-connected industrial control, low-power data loggers, sensor acquisition systems, digital audio processing, building automation equipment, and compact embedded gateways. The Cortex-M4 floating-point unit is particularly useful for control loops and signal-processing workloads that benefit from single-precision arithmetic without requiring a separate DSP. PCB design should account for the 100 exposed leads, high-pin-count routing requirements, and the device's USB and storage interfaces. Confirm pin assignments, decoupling requirements, clock configuration, and peripheral multiplexing in the manufacturer datasheet and reference manual before releasing the PCB layout. This page combines the STM32L4R5VGT6's core specifications, sourcing structure, family alternatives, and application guidance to support faster component selection and hardware planning for embedded-product teams.

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STM32L4R5VIT6 - 2MB Flash Cortex-M4 MCU 120MHz | STMicroelectronics
STM32L4R5VIT6

STM32L4R5VIT6 - 2MB Flash Cortex-M4 MCU 120MHz | STMicroelectronics

The STMicroelectronics STM32L4R5VIT6 is an ultra-low-power 32-bit ARM Cortex-M4 microcontroller (MCU) with FPU, delivering 150 DMIPS at 120 MHz, integrating 2 MB of Flash and 640 KB of SRAM, and housed in a 100-pin LQFP (14x14 mm) package. The part belongs to the STM32L4+ Series and operates from a 1.71 V to 3.6 V supply, with a separate I/O rail that can go down to 1.08 V, supporting modern low-voltage sensor and memory interfacing. An ARM Cortex-M4 MCU is a 32-bit RISC processor with Thumb-2 instruction set, an integrated single-precision FPU, and a rich interrupt controller (NVIC). It sits in the hierarchy microcontroller -> embedded processor -> semiconductor IC and serves as the central compute element in battery-powered and ultra-low-power embedded systems, replacing older 8/16-bit MCUs while adding DSP instructions and DSP/SIMD acceleration for sensor-fusion signal chains. Key features include 2 MB dual-bank Flash allowing read-while-write firmware updates, 640 KB SRAM, an Octal-SPI interface and SD-card interface for external memory expansion, USB OTG full-speed, two 12-bit ADCs (5 Msps), two 12-bit DACs, a digital filter for Sigma-Delta modulators (DFSDM), an LCD-TFT display controller and an optional MIPI-DSI interface on higher part numbers. The integrated SMPS step-down converter plus ultra-low-power modes (down to sub-µA STOP and STANDBY currents) make the device ideal for wearables, smart metering, and IoT edge nodes. Architecturally, the STM32L4R5 family uses ST's 90 nm ultra-low-leakage process with an on-chip voltage regulator that can switch between LDO and an external SMPS for higher efficiency at moderate loads. This dual-mode regulator is one of the L4+ family's main architectural advances over earlier STM32L4 devices, cutting active current by ~50% at 1.8 V systems. Typical applications include wearable fitness/health bands, smart watches, industrial sensor hubs, low-power IoT gateways, USB-C powered human-interface devices, smart metering with LCD/TFT display, and portable medical devices such as glucose meters or pulse oximeters. The combination of large memory, MIPI-DSI display support, and ultra-low-power modes also suits high-end consumer HMI panels. When designing in this MCU, allocate the 2 MB dual-bank Flash layout from the start: select a bootloader in bank 1 that can swap banks for OTA. Use the built-in DFSDM for low-power sensor acquisition and reserve at least 64 KB of SRAM for the GUI framebuffer when using the LCD-TFT peripheral. This page synthesizes distributor stock, current 1K pricing, and pin-compatible alternatives not found on a single vendor page, giving engineers a single source for sourcing and second-source decisions on the STM32L4R5VIT6.

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STM32L4R5ZIT6 - 32-bit ARM Cortex-M4 MCU 120MHz 2MB Flash LQFP-144 | STMicroelectronics
STM32L4R5ZIT6

STM32L4R5ZIT6 - 32-bit ARM Cortex-M4 MCU 120MHz 2MB Flash LQFP-144 | STMicroelectronics

The STMicroelectronics STM32L4R5ZIT6 is an ultra-low-power 32-bit ARM Cortex-M4 microcontroller with FPU, operating at up to 120 MHz and delivering 150 DMIPS, housed in a 144-pin LQFP (20x20 mm) package. It integrates 2 MB of Flash memory and 640 KB of SRAM, targeting battery-powered and energy-harvesting applications where every microwatt matters. The device operates from a 1.71 V to 3.6 V power supply across -40 °C to 85/125 °C temperature ranges. An ARM Cortex-M4 microcontroller (MCU) is a 32-bit RISC processor core designed by Arm Holdings for embedded applications. It combines high computational performance with low power consumption, and the M4 variant adds a single-precision floating-point unit (FPU) plus DSP extensions. In the broader taxonomy, the STM32L4R5 belongs to the ultra-low-power microcontroller family (STM32L series), which sits below the mainstream STM32F series and above the ultra-low-power STM32L0 in ST's power-versus-performance spectrum. The "plus" designation (STM32L4+) indicates the higher-performance 120 MHz sub-family with Chrom-GRC graphics support. Key features of the STM32L4R5ZIT6 include a FlexPowerControl architecture with multiple low-power modes (Shutdown at 33 nA, VBAT mode at 305 nA, Batch Acquisition Mode for partial wake-up), USB OTG with internal PHY, and a DFSDM (Digital Filter for Sigma-Delta Modulators) peripheral for sensor hub applications. It also features a Chrom-ART Accelerator for 2D graphics and an Octo-SPI interface for high-speed external Flash, along with cryptographic and AES-256 hardware accelerators for IoT security. The device integrates the Cortex-M4 core with FPU and Memory Protection Unit, plus ST's ART Accelerator (Adaptive Real-Time memory accelerator) that allows 0-wait-state execution from Flash at the full 120 MHz clock speed. Up to 640 KB SRAM includes 32 KB of SRAM2 with parity check, retained in Standby mode and accessible via SRAM-based boot for secure firmware update. The LQFP-144 package exposes the full STM32L4R5 peripheral set: 3x 12-bit ADC (16-bit with oversampling), 2x DAC, 4x op-amps, 2x comparators, multiple timers, TFT controller, and MIPI-DSI support requires the larger BGA package. Typical applications include wearable health monitors, smart sensors, IoT edge nodes, industrial HMI panels, low-power wireless modules (BLE/LoRa companion), battery-powered data loggers, and energy-harvesting systems. The 2 MB Flash supports over-the-air firmware updates and rich graphical user interfaces on small TFT displays without external memory. When designing with the STM32L4R5ZIT6, use ST's STM32CubeMX and STM32CubeIDE toolchain for code generation, pin multiplexing, and power-consumption profiling. Source decoupling requires 100 nF X7R ceramic on every VDD/VDDA pair; the integrated SMPS step-down converter (when present on L4+ variants) should be configured with a 10 µH inductor per the application note AN4621. The LQFP-144 thermal performance typically permits 500 mA peak current draw at 120 MHz with a 2-layer FR4 board. This page synthesizes distributor pricing tiers, drop-in compatible same-family STM32 alternatives, application-tailored companion MPNs, and practical low-power design guidance that complements the manufacturer datasheet.

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STM32L4R5ZIT6P - Cortex-M4 MCU 120MHz 2MB Flash | STMicroelectronics
STM32L4R5ZIT6P

STM32L4R5ZIT6P - Cortex-M4 MCU 120MHz 2MB Flash | STMicroelectronics

The STMicroelectronics STM32L4R5ZIT6P is an ultra-low-power ARM Cortex-M4 microcontroller with FPU, running up to 120 MHz and achieving 150 DMIPS, integrated in a 144-pin LQFP (20x20 mm) package. It features 2 MB of Flash memory and 640 KB of SRAM, with USB OTG and DFSDM (Digital Filter for Sigma-Delta Modulators) peripherals on-chip. The device is part of the STM32L4+ family targeting low-power embedded applications with rich graphics and connectivity. An ultra-low-power MCU is a microcontroller specifically architected to minimize energy use across active, sleep, deep-sleep, and shutdown modes, enabling battery-powered and energy-harvesting designs. Within the system hierarchy, the STM32L4+ sits at the high end of ST's ultra-low-power line, above the STM32L0 and STM32L1 families, and below the Cortex-M7 based STM32F7/H7 high-performance lines. The Cortex-M4 core adds DSP extensions and a single-precision FPU, making it suitable for signal-processing tasks that the Cortex-M0+ cannot handle efficiently. Key features include a 120 MHz Cortex-M4 core with FPU and MPU, 2 MB dual-bank Flash supporting read-while-write, 640 KB SRAM including 16 KB SRAM2 with parity, a 1.8V core supply with internal SMPS step-down converter for ultra-low-power Run mode, and an extensive peripheral set including USB OTG full-speed, three SPIs, three I2C, six USART/UARTs, two SAIs, one CAN, one SDMMC, and a 12-bit ADC with 5 Msps throughput. The Chrom-ART 2D graphics accelerator and OctoSPI Flash interface support modern display and memory expansion requirements. Typical applications include low-power IoT sensor nodes, wearable health monitors, industrial HMI with TFT displays, smart meters, asset tracking with BLE or LoRa, and battery-powered data loggers. The 144-LQFP package provides generous GPIO (over 100 pins) for complex designs with multiple peripherals. When designing with this part, evaluate the package size relative to your PCB - the 144-LQFP (20x20 mm) footprint is among the largest in the STM32 family; the smaller 64-LQFP or 48-LQFP variants of the same silicon may suffice if your GPIO budget is smaller. The internal SMPS requires careful PCB layout to minimize EMI.

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STM32L4R9AII6 - 120MHz 2MB Cortex-M4 MCU | STMicroelectronics
STM32L4R9AII6

STM32L4R9AII6 - 120MHz 2MB Cortex-M4 MCU | STMicroelectronics

The STMicroelectronics STM32L4R9AII6 is an ultra-low-power 32-bit Arm Cortex-M4 microcontroller with FPU, 120 MHz maximum operating frequency, 2 MB of flash memory, and 640 KB of RAM in a 169-UFBGA 7 x 7 mm package. Its 1.71 V to 3.6 V supply range supports low-voltage embedded systems requiring substantial memory and low-power operation. The device is identified as part of the STM32L4+ Series and is designed for applications that combine real-time control, connectivity, and energy efficiency. An STM32L4+ microcontroller is a 32-bit embedded-control platform built around the Arm Cortex-M4 processor with a floating-point unit. The STM32L4 family extends the MCU hierarchy from embedded controller to ultra-low-power microcontroller, combining real-time processing, memory, analog peripherals, security, and communications interfaces. The STM32L4R9AII6 uses that architecture for demanding control tasks where conventional low-power MCUs may provide too little flash, RAM, or processing performance. Key verified features include a 120 MHz operating frequency, 2 MB flash memory, 640 KB RAM, an Arm Cortex-M4 32-bit RISC core, and FlexPowerControl low-power operation. The supply range is 1.71 V to 3.6 V. Low-power modes reported for the family include 305 nA in VBAT mode for the RTC and 32 x 32-bit backup registers, plus 33 nA shutdown mode. These values support battery-backed sensing, portable instruments, industrial controllers, and connected embedded equipment. The STM32L4R9AII6 combines a high-performance Cortex-M4 core with large on-chip memory in a compact BGA package. This arrangement reduces external memory requirements in firmware-intensive applications and allows more local data buffering. Its operating frequency supports responsive control and signal-processing workloads, while the low-power modes help preserve battery life during idle periods. The 169-UFBGA package requires careful PCB layout, escape routing, thermal management, and assembly-process qualification. Typical uses include industrial automation, battery-powered sensors, medical monitoring equipment, building controls, portable measurement systems, and connected embedded products. The STM32L4R9AII6 is particularly suitable when a design needs more than 1 MB of flash, substantial RAM, and low standby consumption. Its memory capacity can hold application firmware, protocol stacks, diagnostics, data logs, and control algorithms without requiring external storage. For a new design, verify every peripheral, pin multiplexing option, voltage requirement, and package-level layout rule against the official STMicroelectronics datasheet before layout release. Do not substitute a mechanically similar MCU unless pin mapping, electrical limits, memory map, firmware support, and package land pattern have all been reviewed. The UFBGA footprint also requires thermal-via planning and assembly capability appropriate for fine-pitch ball-grid-array devices.

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STM32L4R9VGT6 - 120MHz Cortex-M4 1MB MCU | STMicroelectronics
STM32L4R9VGT6

STM32L4R9VGT6 - 120MHz Cortex-M4 1MB MCU | STMicroelectronics

STMicroelectronics STM32L4R9VGT6 is an ultra-low-power 32-bit Arm Cortex-M4 microcontroller with a 120 MHz operating frequency, 1 MB of flash memory, and a 100-pin LQFP package measuring 14 x 14 mm. The device belongs to the STM32L4+ Series and is positioned for connected, low-power embedded systems that require substantial local code and data storage. An ultra-low-power microcontroller is a semiconductor that controls an embedded system while minimizing energy consumption during active operation, sleep, shutdown, and battery-backed states. The STM32L4+ family sits within the broader hierarchy of microcontroller, embedded processor, and semiconductor categories. Its FlexPowerControl architecture is intended to extend operating time in battery-powered equipment without requiring a high-performance processor to remain active during idle periods. Verified device features include an Arm Cortex-M4 32-bit RISC core, a 120 MHz maximum clock, and 1 MB of flash memory organized as 1M x 8. The STM32L4R9VG family supports a 1.71 V to 3.6 V operating supply range and temperature options extending from -40 °C to 85 °C or -40 °C to 125 °C. The STM32L4R9VG family also includes USB OTG and DFSD functionality according to the manufacturer listing. Low-power operation is supported by a shutdown mode consuming 33 nA and a VBAT mode consuming 305 nA, as stated in the available datasheet summary. These figures are especially relevant for sensors, portable instruments, and battery-operated equipment that spend most of their service life in a low-current state. The 1 MB flash capacity allows larger firmware, data logs, and embedded user-interface assets to remain resident without an external program-memory device. Typical uses include industrial sensing and control, connected sensor nodes, USB-enabled embedded equipment, data acquisition systems, and low-power consumer or medical products. The 100-pin LQFP package provides a higher pin count than compact MCU packages, making it suitable for designs requiring multiple peripheral connections while remaining compatible with established surface-mount manufacturing processes. Designers should preserve the complete STM32L4R9VG pin assignment and review the manufacturer reference manual before routing USB, high-speed interfaces, power supplies, debug signals, and analog inputs. Correct decoupling, grounded return paths, clock planning, and low-power state transitions are essential for dependable operation. The available verified data does not provide a complete pin-by-pin assignment, so no pin names are inferred here. This product record consolidates manufacturer positioning, distributor availability, verified electrical highlights, and same-family drop-in candidates with engineering trade-offs. It also identifies where complete RAM, GPIO, peripheral, timing, and package-thermal values require confirmation from the manufacturer documentation before a production design is released.

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STM32L4R9VIT6 - 120MHz ARM Cortex-M4 2MB Flash MCU | STMicroelectronics
STM32L4R9VIT6

STM32L4R9VIT6 - 120MHz ARM Cortex-M4 2MB Flash MCU | STMicroelectronics

The STMicroelectronics STM32L4R9VIT6 is an ultra-low-power 32-bit ARM Cortex-M4 microcontroller with FPU operating at up to 120 MHz, integrating 2 MB of Flash and 640 KB of SRAM in a 100-pin LQFP (14x14 mm) package. It features a Chrom-GRC graphics accelerator, Chrom-ART Accelerator, USB OTG Full-Speed, DFSDM digital filter, and a wide range of peripherals such as ADC, timers, PWM, I2C, SPI, UART, and CAN, while operating from a 1.71 V to 3.6 V supply. An ultra-low-power microcontroller (MCU) is a 32-bit RISC processor designed to minimize active and standby energy consumption, allowing battery-powered or energy-harvesting products to run for years on a single cell. The STM32L4+ family sits within ST's broader STM32 portfolio as a high-performance, ultra-low-power tier, bridging the gap between Cortex-M4 performance and Cortex-M0+ efficiency. Within this family, the STM32L4R9 sub-line is positioned at the top end with 2 MB Flash, 640 KB SRAM, and a TFT/chrom accelerator pipeline targeting HMI and wearables. Key differentiating features include Batch Acquisition Mode (BAM) that reduces data throughput overhead, a 305 nA VBAT mode for RTC backup domain, a 33 nA Shutdown mode, an integrated DFSDM peripheral for sigma-delta sensor inputs, and hardware AES-256 encryption for secure firmware updates. The 120 MHz Cortex-M4 core delivers up to 150 DMIPS / 273 CoreMark while a low-power RUN mode operates down to 2 MHz at ~100 uA/MHz. Typical applications span wearable fitness bands, medical sensor patches, smart watches with TFT displays, industrial sensor hubs with CAN connectivity, low-power IoT endpoints with secure boot, and battery-powered instrumentation. The 2 MB Flash accommodates rich TFT GUIs and over-the-air update partitions while 640 KB SRAM supports double-buffer graphical framebuffers. When designing with this MCU, ensure PCB layout keeps decoupling capacitors within 2 mm of each supply pin and that unused peripherals are clock-gated to retain the ultra-low-power budget. Use ST's STM32CubeIDE and STM32CubeMX with the L4+ HAL to enable Power Modes, DMA, and TFTC driver configurations quickly. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement (not replicate) the official ST datasheet, helping engineers shortlist the right ultra-low-power MCU for their HMI or wearable product.

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STM32L4R9ZGJ6 - 120MHz Cortex-M4 1MB Flash MCU | STMicroelectronics
STM32L4R9ZGJ6

STM32L4R9ZGJ6 - 120MHz Cortex-M4 1MB Flash MCU | STMicroelectronics

The STMicroelectronics STM32L4R9ZGJ6 is an ultra-low-power 32-bit microcontroller built around the Arm Cortex-M4 core, operating up to 120 MHz and integrating 1 MB of flash memory in a 144-UFBGA package measuring 10 x 10 mm. It belongs to the STM32L4+ family, which combines high processing performance with low-power operating modes for battery-powered and industrial equipment. A low-dropout voltage regulator is a power-management component that converts an input supply into a stable internal rail while limiting power loss. In this microcontroller, the low-power architecture supports operation from a 1.71 V to 3.6 V supply, with shutdown current as low as 33 nA and a VBAT mode drawing 305 nA to maintain the real-time clock and 32 backup registers. This makes the device suitable for designs where standby energy consumption is as important as active processing capability. The STM32L4R9ZGJ6 provides a 32-bit Arm Cortex-M4 processor with FPU, 1 MB of flash, and up to 640 KB of SRAM across the STM32L4R9 family. Its feature set includes USB OTG, DFSD capability, and the low-power peripherals associated with the STM32L4+ platform. The J6 ordering option identifies the temperature-qualified 144-pin package configuration used for industrial and extended-temperature designs. The device is designed around the STM32L4+ low-power architecture, including FlexPowerControl, multiple sleep modes, and batch acquisition mode. These resources allow firmware to remain responsive while limiting energy use during idle periods. The Cortex-M4 core supports efficient digital signal processing and control workloads without requiring a separate DSP component in many embedded applications. Typical applications include industrial sensor nodes, compact data loggers, battery-powered handheld instruments, connected industrial equipment, and USB-connected control peripherals. The small 144-UFBGA package also makes the part suitable for space-constrained designs where board area is limited and thermal management must be planned carefully. When laying out the PCB, follow the package ball assignments and recommended land pattern in the STM32L4R9ZG datasheet, provide clean supply decoupling, and keep sensitive analog and communication traces away from high-current switching paths. Because the package is a fine-pitch BGA, assembly capability, solder-paste volume, stencil design, and X-ray inspection requirements should be confirmed before volume production. This page consolidates electrical characteristics, package information, design considerations, and verified drop-in candidates to support component selection, schematic capture, PCB planning, and sourcing decisions without duplicating the raw datasheet layout.

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STM32L4R9ZGT6 - 120MHz 1MB Flash MCU | STMicroelectronics
STM32L4R9ZGT6

STM32L4R9ZGT6 - 120MHz 1MB Flash MCU | STMicroelectronics

STMicroelectronics STM32L4R9ZGT6 is an ultra-low-power 32-bit Arm Cortex-M4 microcontroller with a 120 MHz maximum clock, 1 MB of Flash memory, USB OTG, DFSD, 112 I/O, and a 144-LQFP 20 x 20 mm package. It belongs to the STM32L4+ Series, combining real-time embedded control with low-power operating modes and a broad set of communication and analog peripherals. An ultra-low-power microcontroller is an embedded semiconductor designed to maintain useful processing, sensing, and communication functions while minimizing energy consumption. The STM32L4+ hierarchy progresses from the STM32L4R9 device family to an Arm Cortex-M4 microcontroller, an embedded processor, and ultimately a semiconductor used in battery-powered and energy-conscious electronic systems. FlexPowerControl supports operating modes suited to applications where standby and shutdown current can determine practical battery life. The STM32L4R9ZGT6 operates from a 1.71 V to 3.6 V supply range and is available in temperature grades extending to 85 °C or 125 °C, depending on the exact orderable configuration. Its 120 MHz Arm Cortex-M4 core provides substantially more performance headroom than lower-frequency microcontrollers while retaining the compact package, 1 MB Flash, and low-power architecture of the STM32L4+ family. The integrated floating-point unit supports efficient control and signal-processing workloads. The device includes 112 I/O in its 144-lead package, along with USB OTG and DFSD functionality. These interfaces enable removable storage, data acquisition, firmware update, and external storage applications without requiring discrete interface controllers. According to the STMicroelectronics STM32L4R9ZG product page, the STM32L4R5xx, STM32L4R7xx, and STM32L4R9xx devices share the ultra-low-power STM32L4+ platform and Arm Cortex-M4 architecture. Low-power features include a 305 nA VBAT mode for the real-time clock and 32 × 32-bit backup registers, plus a 33 nA shutdown mode. These figures make the MCU applicable to environmental sensors, compact industrial recorders, portable measurement equipment, and other systems that spend substantial time between active processing intervals. When designing around the STM32L4R9ZGT6, preserve the 1.71 V to 3.6 V supply limits, use suitable decoupling close to the supply pins, and verify every peripheral operating condition against the manufacturer datasheet. Temperature grade, firmware configuration, power sequencing, and low-mode entry conditions should be validated together rather than treated as independent parameters. This product page consolidates verified manufacturer and distributor information, package details, low-power figures, replacement guidance, and application-oriented engineering context. It also distinguishes true same-package drop-in candidates from broader functional alternatives, helping designers compare procurement options without overlooking the differences that affect qualification.

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STM32L4R9ZIJ6 - 120MHz 2MB Cortex-M4 MCU | STMicroelectronics
STM32L4R9ZIJ6

STM32L4R9ZIJ6 - 120MHz 2MB Cortex-M4 MCU | STMicroelectronics

The STMicroelectronics STM32L4R9ZIJ6 is a 32-bit Arm Cortex-M4 microcontroller operating up to 120 MHz, with 2 MB of Flash memory and a 144-pin UFBGA package measuring 10 mm by 10 mm. The verified distributor information identifies USB OTG and DFSD support, positioning this device for connected industrial, sensor, and embedded-control systems that combine substantial code storage with low-power microcontroller operation. A microcontroller is a programmable system-on-chip that integrates a processor core, Flash program memory, data memory, peripherals, and communication interfaces on one package. STM32L4+ belongs to STMicroelectronics' ultra-low-power STM32L4 family. The Cortex-M4 core uses a 32-bit RISC architecture and provides the processing foundation for control loops, protocol handling, human-machine interfaces, and connected sensor nodes. Within the product hierarchy, this MCU combines embedded processing, low-power management, and extensive digital peripherals. The verified data highlights three primary attributes: a 120 MHz maximum clock, 2 MB of Flash memory, and a 144-UFBGA package. Mouser additionally identifies USB OTG and DFSD functionality, while the LCSC listing identifies a 3.3 V device supplied in a tray. These features support firmware-heavy applications requiring high code density, peripheral connectivity, and a compact surface-mount footprint. Package dimensions and ball-level routing must still be checked against the manufacturer pinout before layout release. The STM32L4R9ZIJ6 is based on the STM32L4+ device family, whose members target ultra-low-power embedded applications. At the system level, the microcontroller executes application code, manages sensors and actuators, and bridges communications between local control hardware and external equipment. The exact SRAM capacity, voltage range, GPIO count, analog features, operating-temperature limits, and low-power current figures were not included in the supplied verified excerpts and therefore remain unverified here. Typical design targets include industrial sensor nodes, USB-connected data loggers, compact industrial controllers, asset-tracking equipment, and low-power monitoring systems. A DFSD-capable variant can support workflows involving removable storage when the associated peripheral, filesystem, electrical requirements, and board support package are implemented correctly. USB OTG can support peripheral or host roles when the selected role, power configuration, routing, and firmware stack are appropriate. Engineers should assign power, ground, decoupling, clock, programming, and debug pins strictly from the official STM32L4R9ZI documentation. BGA routing requires fine-pitch layout rules, controlled impedance where applicable, and assembly capability appropriate to the 10 mm by 10 mm UFBGA footprint. Before substituting any device, verify ball mapping, voltage domains, peripheral availability, bootloader behavior, memory organization, and production software support rather than relying only on nominal CPU speed. This page combines verified manufacturer and distributor information with explicit engineering gaps, package guidance, sourcing questions, and decision criteria. It distinguishes confirmed characteristics from unverified parameters and explains why a nominal Cortex-M4 match is insufficient to establish a true drop-in replacement. That engineering distinction is essential for this high-pin-count, finely balled MCU package.

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STM32L4R9ZIT6 - 120MHz Cortex-M4, 2MB Flash MCU | STMicroelectronics
STM32L4R9ZIT6

STM32L4R9ZIT6 - 120MHz Cortex-M4, 2MB Flash MCU | STMicroelectronics

The STMicroelectronics STM32L4R9ZIT6 is an ultra-low-power 32-bit microcontroller based on the Arm Cortex-M4 core with FPU running at up to 120 MHz, featuring 2 MB of Flash memory and 640 KB of SRAM, housed in a 144-pin LQFP (20x20 mm) package. It operates from a 1.71 V to 3.6 V supply across -40 C to +85/125 C temperature ranges. A microcontroller (MCU) is a single-chip computer integrating a processor core, memory, and peripherals on one die. The STM32L4+ Series sits at the top of the STM32L4 ultra-low-power family hierarchy within ST's broader STM32 microcontroller portfolio, combining high processing performance with class-leading energy efficiency for battery-powered and energy-harvesting systems. Key differentiating features include FlexPowerControl ultra-low-power operation with 305 nA in VBAT mode (supplying the RTC and 32x32-bit backup registers) and 33 nA Shutdown mode, Batch Acquisition Mode (BAM) for data logging while the main domain sleeps, and up to 2 MB of dual-bank Flash enabling read-while-write operations. The integrated Chrom-ART Accelerator (DMA2D) offloads graphics memory transfers, and the MIPI-DSI host controller supports direct display interfacing on suitable packages. Technically, the device couples the Cortex-M4 with DSP instructions and a hardware single-precision FPU to an art accelerator, an L1 cache, and an extended power architecture with independent power domains (LPDMA domain, run domain). Multiple clock sources, a rich timer set, USB OTG FS, DFSDM (digital filter for sigma-delta modulators), quad-SPI memory interface, and dual ADCs round out the analog and connectivity mix. Typical applications include portable medical and industrial devices with GUI displays, smart meters, battery-powered IoT sensor nodes, and consumer appliances requiring both high performance and long battery life. The large embedded memory supports rich graphics stacks and RTOS-based designs without external storage. Design consideration: budget the power architecture early - the flexible SMPS-free design means supply sequencing and VOS (voltage scaling) selection directly affect the achievable 120 MHz maximum frequency and dynamic current. This page synthesizes distributor pricing, drop-in alternatives, pin guidance, and practical design notes not found in a single manufacturer datasheet page.

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STM32L4S5QII6 - 120MHz Cortex-M4 MCU | STMicroelectronics
STM32L4S5QII6

STM32L4S5QII6 - 120MHz Cortex-M4 MCU | STMicroelectronics

STMicroelectronics STM32L4S5QII6 is an ultra-low-power 32-bit Arm Cortex-M4 microcontroller with FPU, operating up to 120 MHz and providing 2 MB of Flash memory, 640 KB of SRAM, and 110 I/O in a 132-UFBGA 7 x 7 mm package. The STM32L4+ architecture supports USB OTG, DFSDM, CHROM-ART graphics, AES-256 encryption, and HASH processing for connected, secure, and low-power embedded systems. An ultra-low-power microcontroller is a semiconductor designed to perform control, measurement, communications, and user-interface tasks while minimizing energy consumption. Within the product hierarchy, the STM32L4S5 belongs to the STM32L4+ Series, combines the Arm Cortex-M4 processor core with embedded Flash, SRAM, security peripherals, and mixed-signal interfaces, and provides a broad platform for battery-powered and energy-conscious equipment. Principal features include a 120 MHz Arm Cortex-M4 core with FPU, 2 MB of Flash, 640 KB of SRAM, 110 I/O, USB OTG, DFSDM, CHROM-ART, AES-256, and HASH. USB OTG supports direct USB connectivity, DFSDM permits efficient conversion of analog signals, CHROM-ART accelerates suitable graphical workloads, and the security peripherals support cryptographic protection and integrity checks in connected products. The 132-UFBGA package provides a dense implementation for applications requiring substantial connectivity while preserving a compact board footprint. Its 110 I/O positions allow multiple external peripherals and communication interfaces to be connected without moving to a larger package. The Cortex-M4 FPU accelerates suitable floating-point operations, while the STM32L4+ family's low-power architecture supports designs that must balance active-processing performance with standby or battery operation. Typical applications include industrial sensor controllers, USB-connected data acquisition equipment, secure access terminals, low-power gateways, compact human-interface controllers, and connected medical or measurement products. DFSDM can support compact analog measurement systems, while USB OTG simplifies direct host and device connectivity. AES-256 and HASH are useful when product data must be encrypted, authenticated, or checked for integrity. A critical design task is assigning all 132 BGA balls, power rails, ground connections, and decoupling capacitors on the PCB. The exact pin names, alternate functions, and electrical limits must be taken from the manufacturer datasheet pin-description tables. Firmware development should also verify toolchain, debug-probe, boot, clock, and peripheral support before layout release. This product page consolidates the STM32L4S5QII6 core specifications, verified package and peripheral details, design guidance, and same-package alternatives. The comparison information is intended to accelerate component selection and hardware planning without replacing the manufacturer datasheet for production design sign-off.

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STM32L4S5VIT6 - Ultra-Low-Power ARM Cortex-M4 MCU, 120MHz, 2MB Flash | STMicroelectronics
STM32L4S5VIT6

STM32L4S5VIT6 - Ultra-Low-Power ARM Cortex-M4 MCU, 120MHz, 2MB Flash | STMicroelectronics

The STMicroelectronics STM32L4S5VIT6 is an ultra-low-power 32-bit microcontroller from the STM32L4+ Series, based on the ARM Cortex-M4 core with single-precision floating-point unit (FPU). It operates at up to 120 MHz delivering 150 DMIPS, integrates 2 MB of Flash and 640 KB of SRAM, and is housed in a 100-pin LQFP (14x14 mm, 0.5 mm pitch) package. What is an ultra-low-power microcontroller? An ultra-low-power microcontroller is an embedded processor designed to minimize energy consumption while maintaining computational capability through multiple low-power modes (Sleep, Stop, Standby, Shutdown). Within the broader hierarchy, an ultra-low-power MCU is a subset of microcontrollers, which are integrated circuits used in embedded systems. The STM32L4+ family is specifically optimized for battery-powered and energy-harvesting applications, balancing high performance with industry-leading power efficiency measured in nanoamps. Key features of the STM32L4S5VIT6 include multiple 12-bit ADCs (5 Msps), 12-bit DACs, ultra-low-power comparators, advanced timers, and a rich communication interface set: USART, SPI, I2C, CAN, USB OTG with on-chip PHY, SAI, and SDMMC. Security features include a true random number generator (TRNG), AES-256 hardware accelerator, and Hash (SHA-256). The device operates from 1.71V to 3.6V across a -40°C to +85°C temperature range. Technically, the STM32L4S5VIT6 leverages ST's proprietary 90 nm ultra-low-leakage process and proprietary smart architecture. Current consumption reaches as low as approximately 100 nA in Standby with backup domain, and a few microamps in Stop mode with RTC running. This enables years of operation on coin-cell or lithium batteries. The integrated Chrom-ART graphics accelerator and USB OTG with embedded PHY simplify BOM and PCB layout for HMI and USB-connected designs. Typical applications include industrial sensor nodes, smart meters, wearable health monitors, medical instrumentation, IoT edge devices, and USB peripherals. Its combination of low power, high performance, and rich peripherals allows designers to implement complex DSP and control algorithms while maintaining long battery life. When designing with this MCU, pay attention to power supply decoupling: place a 100 nF ceramic capacitor close to each VDD pin and a 4.7 µF bulk capacitor on the main supply. Configure the clock system carefully to balance performance and consumption, using the MSI (multi-speed internal) oscillator for low-power phases and the HSE crystal only when precision is required. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing actionable engineering context for BOM decisions and second sourcing.

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STM32L4S5ZIT6 - 120MHz, 2MB Flash MCU | STMicroelectronics
STM32L4S5ZIT6

STM32L4S5ZIT6 - 120MHz, 2MB Flash MCU | STMicroelectronics

STMicroelectronics STM32L4S5ZIT6 is an ultra-low-power, 32-bit Arm Cortex-M4 microcontroller operating up to 120 MHz, with 2 MB of Flash memory and 640 KB of SRAM, in a 144-LQFP 20 x 20 mm package. It belongs to the STM32L4+ Series, a product line within the STM32 family of embedded microcontrollers and semiconductor devices designed for efficient, connected industrial, consumer, medical, and IoT equipment. An ultra-low-power microcontroller is an embedded processing device optimized to minimize energy consumption while retaining real-time processing, memory, communication, and peripheral capabilities. The STM32L4+ architecture sits within the STM32 portfolio as a 32-bit Arm Cortex-M4 platform. Its combination of 120 MHz processing performance and 2 MB of embedded Flash supports control tasks, human-machine interfaces, communications, data acquisition, and firmware of moderate complexity without requiring an external memory device. The STM32L4S5ZIT6 integrates 2 MB of Flash organized as 2M x 8 and 640 KB of SRAM. Manufacturer and distributor listings identify the device as a single-core, ultra-low-power microcontroller with a floating-point unit. Its documented feature set includes USB OTG, DFSDM, Chrom-ART acceleration, AES-256 encryption, and HASH hardware, reducing the processing burden for USB connectivity, audio or signal conversion, graphics-oriented operations, and cryptographic workflows. The 120 MHz Arm Cortex-M4 core provides substantially more compute headroom than lower-frequency microcontroller families while retaining an efficient embedded architecture. Dedicated hardware for AES-256 and HASH supports security-sensitive data handling, while DFSDM provides a dedicated path for digital signal conversion. Chrom-ART hardware accelerates suitable graphics and display operations, helping preserve application-processing and power-management performance. Typical applications include USB-connected industrial peripherals, low-power sensor nodes, compact medical monitoring equipment, building-control terminals, secure access devices, and connected consumer products. The 144-LQFP package provides 144 external connection points, making it suitable for designs that require broader peripheral access than small-outline packages while remaining straightforward to assemble using conventional leaded-package production methods. Designers should preserve the power-budget and decoupling requirements stated in the manufacturer documentation, especially when the USB, DFSDM, cryptography, or high-speed peripherals are active. Firmware support, peripheral configuration, clock selection, and low-power transitions must be validated for the intended application. A 144-LQFP footprint should be checked against the exact pin assignments and exposed thermal requirements before layout release. This page combines manufacturer-family positioning, verified distributor specifications, package details, application guidance, and engineering-focused selection criteria. It also distinguishes confirmed device attributes from parameters that require confirmation in the complete STM32L4S5 datasheet, helping engineers assess suitability without confusing similar STM32L4+ members.

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STM32L4S9AII6 - 120MHz Cortex-M4 MCU | STMicroelectronics
STM32L4S9AII6

STM32L4S9AII6 - 120MHz Cortex-M4 MCU | STMicroelectronics

STMicroelectronics STM32L4S9AII6 is an ultra-low-power 32-bit microcontroller based on the Arm Cortex-M4 processor, operating up to 120 MHz with 2 MB of Flash memory and 640 KB of SRAM in a 169-ball UFBGA package measuring 7 x 7 mm. The device belongs to the STM32L4+ Series, combining a high-performance processor core with extensive connectivity, security, and low-power capabilities for compact embedded systems. An ultra-low-power microcontroller is a semiconductor controller designed to execute firmware efficiently while limiting energy consumption during active processing, sleep, and standby operation. The STM32L4 family occupies the middle ground between conventional high-performance microcontrollers and highly constrained low-power devices. Its Cortex-M4 architecture supports real-time control, communications, data acquisition, and human-machine-interface tasks without requiring a separate processor for each function. The STM32L4S9AII6 provides 136 I/O, USB OTG, DFSD capability, 2 MB of Flash, and 640 KB of SRAM. Its 120 MHz operating frequency supports computationally demanding control loops, while the substantial SRAM reduces the need for external memory in graphics, connectivity, and protocol-intensive designs. The STM32L4S9AI family is specifically identified as part of the STM32L4+ ultra-low-power product family. The Cortex-M4 core uses a 32-bit RISC architecture and includes floating-point-oriented processing capability within the STM32L4+ platform. Integrated communication and storage features allow the MCU to connect to USB-based systems, transfer data through digital interfaces, and work with file-oriented storage peripherals. These capabilities make the device suitable for consolidating peripheral functions around one low-power controller. Typical uses include industrial control and automation, connected sensor nodes, medical monitoring equipment, USB data-acquisition systems, secure access terminals, consumer electronics, and compact portable products. The combination of 120 MHz processing, 2 MB of Flash, 640 KB of SRAM, and a 7 x 7 mm UFBGA package supports sophisticated functions in space-constrained boards. Board design should pay particular attention to the 169-ball BGA escape routing, power integrity, decoupling, and exposed-pad thermal management. Confirm the complete pin assignment, programming interface, decoupling network, clock requirements, and unused-ball treatment against the manufacturer datasheet before layout release. The high pin count also makes assembly inspection and prototype rework more demanding than with a leaded or small-outline package. This product page combines manufacturer-family information with a practical engineering comparison of related STM32 devices, memory characteristics, package constraints, design considerations, sourcing questions, and the important limits imposed by exact MPN, firmware, and footprint matching. It is designed to help engineers identify when the STM32L4S9AII6 is appropriate and when a different device requires an intentional redesign rather than a simple substitution.

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STM32L4S9ZIJ6 - 120MHz 2MB Cortex-M4 MCU | STMicroelectronics
STM32L4S9ZIJ6

STM32L4S9ZIJ6 - 120MHz 2MB Cortex-M4 MCU | STMicroelectronics

The STMicroelectronics STM32L4S9ZIJ6 is an ultra-low-power 32-bit Arm Cortex-M4 microcontroller with a 120 MHz maximum clock frequency, 2 MB of Flash memory, USB OTG support, DFSD capability, and a 144-pin UFBGA package. The device belongs to the STM32L4S9ZI family within the STM32L4+ Series and provides 112 general-purpose I/O according to the verified product listing. An ultra-low-power microcontroller is a semiconductor that balances processing performance with minimized energy consumption. The STM32L4+ architecture integrates an Arm Cortex-M4 RISC core, embedded Flash, RAM, analog and digital peripherals, and security-oriented control functions. This places the STM32L4S9ZIJ6 in the hierarchy of embedded microcontroller, 32-bit MCU, Arm Cortex-M4 MCU, and energy-efficient power-management application. The primary verified features include a 120 MHz operating frequency, 2 MB of Flash storage, USB OTG, DFSD, a 3 V supply indication, and a 144-UFBGA package measuring 10 x 10 mm. The 120 MHz Cortex-M4 core provides substantially greater compute headroom than lower-frequency microcontrollers for control workloads, while the 2 MB Flash capacity supports larger firmware, data logging, and protocol stacks. USB OTG can simplify direct host, device, and peripheral connectivity when the required board-level implementation is provided. The STM32L4S9ZI product family is positioned for energy-sensitive embedded systems. Its Arm Cortex-M4 core supports efficient control processing, while integrated peripherals can reduce the need for discrete components in industrial, communications, sensing, and human-interface designs. Exact RAM capacity, analog converter performance, operating-temperature limits, supply-voltage limits beyond the verified 3 V indication, and individual peripheral configurations are not present in the supplied source excerpts. Typical uses include industrial monitoring equipment, USB-connected data-acquisition units, low-power embedded controllers, sensor-hub designs, and compact communication equipment. The 112 reported I/O positions provide extensive connectivity for sensors, actuators, communications, and human-interface signals, while the compact 10 x 10 mm UFBGA package supports space-constrained designs that can be assembled with appropriate manufacturing processes. Designers should verify the exact pin assignments, exposed-pad connection, decoupling requirements, clock configuration, boot options, and peripheral routing against the official STM32L4S9ZI documentation before layout. A 144-ball footprint also requires careful escape routing and adequate thermal management because dense UFBGA assembly can limit repairability and complicate inspection. This product record consolidates verified distributor specifications, manufacturer-family information, commercial availability references, and defensible cross-reference findings. It also distinguishes true same-footprint alternatives from related devices that require different packages or firmware validation, helping engineers shorten component-selection and sourcing work.

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STM32L4S9ZIT6 - Ultra-Low-Power ARM Cortex-M4F MCU | STMicroelectronics
STM32L4S9ZIT6

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.

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