STM32L4R9AII6 - 120MHz 2MB Cortex-M4 MCU | STMicroelectronics
N.º da peça: STM32L4R9AII6 ✓ Ativo| Qtd. | Preço unitário | Total |
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| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
STM32L4R9AII6 Visão geral
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.
Alternativas drop-in para STM32L4R9AII6 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasSTM32L4R9AII6 Classificações máximas e características elétricas
| Product Type | 32-bit ultra-low-power microcontroller |
| Processor Core | Arm Cortex-M4 with FPU |
| Architecture | 32-bit RISC |
| Maximum Operating Frequency | 120 MHz |
| Flash Memory | 2 MB |
| RAM | 640 KB |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Faixa de temperatura de operação | -40 °C to 85/125 °C |
| VBAT Mode Current | 305 nA |
| Shutdown Mode Current | 33 nA |
| Backup Registers | 32 x 32-bit |
| RTC Low-Power Support | Yes, in VBAT mode |
| Encapsulamento | 169-UFBGA, 7 x 7 mm |
| Tipo de montagem | Surface Mount |
| Batch Acquisition Mode | BAM |
| Core Architecture | Arm Cortex-M4 |
| Series | STM32L4+ Series |
| Flash Organization | 2M x 8 |
Guia de Configuração de Pinos do STM32L4R9AII6 169-ufbga, 7 x 7 mm
Configuração de pinos para STM32L4R9AII6 (pacote 169-ufbga, 7 x 7 mm). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para STM32L4R9AII6.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
STM32L4R9AII6 é adequado para 7 aplicaçãos: Industrial Automation Controller, Battery-Powered Sensor Node, Medical Monitoring Equipment, Connected Building Control, Portable Measurement Instrument, Secure Embedded Gateway, Low-Power Data Logger.
Industrial Automation Controller
The STM32L4R9AII6 fits industrial automation controllers that need substantial local firmware and RAM while retaining low-power behavior. Its Arm Cortex-M4 core operates up to 120 MHz, and 2 MB of flash can hold control logic, communications stacks, diagnostics, and data-processing routines without immediate external flash. The 1.71 V to 3.6 V operating range supports low-voltage embedded designs, while the verified 33 nA shutdown mode can help reduce standby consumption when the controller is not actively processing. A robust design should verify industrial temperature requirements, isolated communications, actuator drivers, and exact peripheral assignments against the STMicroelectronics datasheet.
Recomendado
Battery-Powered Sensor Node
The STM32L4R9AII6 is appropriate for battery-powered sensor nodes that periodically wake to process measurements and return to a low-power state. The STM32L4R9AI documentation reports 305 nA in VBAT mode for the RTC and 32 x 32-bit backup registers, plus 33 nA shutdown mode, providing useful low-power operating points for long deployments. The 120 MHz Cortex-M4 core can handle sensor filtering and local decisions during active intervals, while 640 KB RAM supports buffering and protocol work. Actual battery life depends on sensor current, wake-up frequency, regulator efficiency, leakage, and radio or communications duty cycle.
Recomendado
Medical Monitoring Equipment
The STM32L4R9AII6 can serve as the control platform in compact medical monitoring equipment where local data handling, low-power operation, and a compact package are valuable. The 2 MB flash capacity supports firmware for acquisition control, filtering, event logging, and communications, while 640 KB RAM can buffer samples between processing stages. The 1.71 V to 3.6 V supply range helps simplify integration with compatible low-voltage power trees. Medical designs must additionally address applicable medical-device requirements, electrical isolation, patient-safety architecture, calibration, and validated firmware; none of those qualifications is established by the supplied web data.
Recomendado
Connected Building Control
The STM32L4R9AII6 is suitable for connected building-control nodes that combine local control with network participation. Its 2 MB flash and 640 KB RAM provide room for protocol stacks, configuration data, event history, and application firmware, while the 120 MHz Cortex-M4 core can service multiple control tasks. Low-power modes are valuable in buildings where controllers spend substantial time idle between sensor updates or network events. The design should verify the selected network transceiver, connector, isolation requirements, environmental temperature, and low-power current budget. Do not assume that a generic STM32 network interface is pin-compatible with the target UFBGA footprint.
Recomendado
Portable Measurement Instrument
The STM32L4R9AII6 fits portable measurement instruments that need responsive control, local memory, and efficient standby operation. The 120 MHz Cortex-M4 core can manage acquisition sequencing, signal processing, calibration tables, and user-interface updates, while 2 MB flash provides room for application code and embedded libraries. The 1.71 V to 3.6 V range supports compact battery or USB-derived power architectures when paired with an appropriate regulator. Designers should pay particular attention to analog isolation, reference accuracy, display or communications peripherals, ESD protection, and the fine-pitch 169-UFBGA assembly process.
Recomendado
Secure Embedded Gateway
The STM32L4R9AII6 can serve in a secure embedded gateway when the design benefits from a Cortex-M4 core, substantial local memory, and low-power operation. The 2 MB flash can hold firmware, protocol handlers, authentication logic, and update-related code, while 640 KB RAM can support packet buffering and local processing. The STM32L4+ family is intended for connected embedded systems, but security features, cryptographic resources, boot behavior, and peripheral availability must be verified for the exact STM32L4R9AII6 ordering code. Production gateways also require secure update procedures, protected keys, fault recovery, and careful examination of the 169-UFBGA land pattern.
Recomendado
Low-Power Data Logger
The STM32L4R9AII6 is suitable for low-power data loggers that collect measurements over long intervals and operate from compact energy sources. The large 2 MB flash region can retain event records, configuration data, and firmware, while 640 KB RAM provides working space for acquisition buffering before storage. The verified STM32L4R9AI low-power figures, including 305 nA VBAT mode and 33 nA shutdown mode, help define the idle-state budget, although external sensors and storage devices may dominate the actual current consumption. Designers should validate write endurance, data integrity, wake-up sources, battery self-discharge, and the thermal and soldering constraints of the 169-UFBGA package.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STM32L4R9AII6 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto |
|---|---|
| Package | 169-UFBGA, 7 x 7 mm |
| Brand | STMicroelectronics |
| Processor Core | Arm Cortex-M4 with FPU |
| Maximum Frequency | 120 MHz |
| Flash Memory | 2 MB |
| RAM | 640 KB |
| Operating Voltage | 1.71 V to 3.6 V |
| VBAT Mode Current | 305 nA |
| Shutdown Mode Current | 33 nA |
Principais diferenciais
- Large local memory for firmware-intensive embedded designs (vs STM32F207ICH6)
- Low-power positioning for portable and battery-backed systems (vs STM32F429AIH6)
- 120 MHz Cortex-M4 processing with integrated FPU (vs STM32F103RCY6CTR)
- Compact 169-UFBGA integration (vs STM32F469AIH6)
Notas de projeto
Use the exact STM32L4R9AII6 package drawing and land pattern from the official STMicroelectronics datasheet. The 169-UFBGA, 7 x 7 mm package requires controlled escape routing, appropriate trace widths and clearances, and an assembly process qualified for the selected ball pitch. Do not reuse a generic 169-BGA footprint without checking pin numbering, ball assignments, thermal requirements, solder-mask design, and placement tolerances. Confirm whether the exposed or thermal features require specific copper and via arrangements.
Design the supply network for the verified 1.71 V to 3.6 V operating range and account for startup, transient load, and low-power-state transitions. Place decoupling capacitors close to the relevant supply pins according to the datasheet, and keep noisy switching or high-current paths away from sensitive analog and communication nets. Because the supplied data does not include regulator startup values or exact pin-level decoupling tables, use the official device documentation for final capacitor selection and power-sequencing requirements.
Validate junction temperature and board thermal performance at the maximum intended operating frequency and ambient temperature. The verified operating-temperature information spans -40 °C to 85/125 °C depending on the device variant, but the exact STM32L4R9AII6 temperature grade must be confirmed from the ordering information. Use thermal vias and copper spreading where required by the package drawing, and measure temperature under worst-case workload rather than relying only on nominal ambient conditions.
Do not treat STM32F207ICH6, STM32F103RCY6CTR, STM32F469AIH6, or STM32F429AIH6 as drop-in replacements merely because they are STM32 microcontrollers. The supplied comparison pages identify different families or device characteristics, while the target uses a 169-UFBGA package and specific STM32L4+ memory and low-power parameters. Confirm pinout, memory map, peripheral set, voltage, clock, firmware, and package land pattern before approving any substitute.
For battery-powered designs, calculate the average current from the active workload, periodic sensor current, wake-up frequency, and idle current rather than using the 33 nA shutdown figure alone. The 305 nA VBAT mode is specifically described for RTC and backup-register retention, while external sensors, memory, radios, pull networks, and regulator losses can dominate the system budget. Measure the assembled board across each operating mode and verify retention behavior during power transitions.
Informações de conformidade
The supplied verified web data does not explicitly provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for STM32L4R9AII6. Obtain current STMicroelectronics declarations and approved supplier documentation before making a compliance claim.
