STM32L443RCI6 - 80MHz Cortex-M4 MCU, 256KB, 64-UFBGA
N.º de pieza: STM32L443RCI6 ✗ Fin de vida| Cant. | Precio unitario | Total |
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STM32L443RCI6 Descripción general
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals on one integrated circuit. The STM32L4 family belongs to the microcontroller hierarchy and targets applications where energy efficiency, real-time control, and peripheral integration are important. In this device, the Cortex-M4 core provides 32-bit execution with hardware floating-point capability, while the STM32L4 platform combines conventional embedded control with USB, display, and data-conversion functions.
The verified feature set includes an 80 MHz operating frequency, 256 KB Flash organized as 256K x 8, and 64 KB RAM. The distributor descriptions also list LCD support, USB, AES-256 encryption, and DFSDM. These peripherals can reduce external component count by supporting human-machine interfaces, USB-connected equipment, hardware-assisted secure data handling, and digital signal acquisition. The 64-UFBGA package supports compact, high-density PCB designs but requires careful escape-routing and assembly planning.
Technically, the Cortex-M4F architecture provides a practical balance between processing capability and low-power operation. Floating-point hardware is useful for sensor conditioning, control calculations, and digital signal processing without relying entirely on software arithmetic. The exact operating voltage, current, peripheral pin map, memory interfaces, and temperature limits are not supplied in the retrieved snippets, so those specifications remain subject to verification in the manufacturer datasheet before design release.
Typical applications include low-power sensor nodes, industrial condition-monitoring equipment, USB-connected embedded controls, compact human-machine interfaces, security-aware portable products, and DFSDM-based audio or acquisition systems. Selection should prioritize the 64-UFBGA footprint, 256 KB Flash requirement, 64 KB RAM requirement, Cortex-M4 instruction compatibility, and required peripheral mix. Firmware, bootloader, pin multiplexing, clock configuration, and peripheral errata must also be reviewed.
For a new PCB, route all 64 package balls according to the official pinout and land pattern rather than relying solely on the short distributor descriptions. Confirm USB transceiver requirements, decoupling, clock stability, exposed-ball assembly, and peripheral sharing before schematic release. This page synthesizes verified distributor data, package and feature information, replacement constraints, and engineering-oriented design guidance for STM32L443RCI6.
Alternativas directas para STM32L443RCI6 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
STM32L433RCI6
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
STM32L443RCI6 Valores máximos y características eléctricas
| Product Type | 32-bit ultra-low-power Arm Cortex-M4 MCU with FPU |
| Processor Core | Arm Cortex-M4 |
| Frecuencia de reloj máxima | 80 MHz |
| Flash Memory | 256 KB (256K x 8) |
| RAM | 64 KB |
| Architecture | 32-bit |
| Floating-Point Unit | Yes |
| Encapsulado | 64-UFBGA (5 x 5 mm) |
| USB Support | Yes |
| LCD Support | Yes |
| Hardware Encryption | AES-256 |
| Digital Filter | DFSDM |
| Core Performance | 100 DMIPS |
| Program Memory Type | Flash |
| Supplier Availability Signal | DigiKey listing states ships today; Hotenda snippet states in stock |
Guía de configuración de pines de STM32L443RCI6 64-ufbga (5 x 5 mm)
Configuración de pines para STM32L443RCI6 (encapsulado 64-ufbga (5 x 5 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para STM32L443RCI6.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
STM32L443RCI6 es adecuado para 6 aplicacións: Low-Power Sensor Node, USB-Connected Embedded Control, Compact Human-Machine Interface, Security-Aware Portable Device, DFSDM-Based Signal Acquisition, Industrial Monitoring Controller.
Low-Power Sensor Node
The STM32L443RCI6 fits low-power sensor nodes because it combines an 80 MHz Arm Cortex-M4 MCU with 256 KB Flash and 64 KB RAM, leaving useful memory for acquisition logic, filtering, and local control. Its low-power MCU positioning is appropriate for systems that spend substantial time waiting for sensor data rather than continuously executing code. The Cortex-M4F architecture also supports efficient control calculations and digital filtering. Before layout release, verify the exact low-power modes, active current, sleep current, sensor interfaces, and wake-up requirements in the manufacturer datasheet. The 64-UFBGA package reduces footprint but requires a qualified assembly process and disciplined escape routing.
Recomendado
USB-Connected Embedded Control
The STM32L443RCI6 is a strong candidate for USB-connected embedded controls because the verified distributor data explicitly lists USB and identifies an 80 MHz Cortex-M4F processor with 256 KB Flash and 64 KB RAM. The MCU can host control firmware, protocol handling, and local data processing in one device, reducing the need for a separate interface controller. USB implementation details, transceiver requirements, power sequencing, and connector protection must be confirmed from the official documentation. Designers should also validate suspend, resume, clock, and firmware-update behavior in the final system. The compact 64-UFBGA package helps when space is limited, although fine-pitch assembly adds board-design constraints.
Recomendado
Compact Human-Machine Interface
The STM32L443RCI6 can support compact human-machine interfaces because the verified listings identify LCD capability alongside 256 KB Flash and 64 KB RAM. Those resources suit menu rendering, status displays, keypad scanning, event logging, and local configuration logic without requiring a separate display controller in simpler systems. The exact LCD interface, segment or graphical-display support, pin multiplexing, and electrical timing are not specified in the retrieved snippets, so they must be checked against the manufacturer datasheet. Use the MCU’s available balls to plan the display connection and keep power and ground distribution clean. The 5 x 5 mm package supports density but requires careful BGA layout and assembly verification.
Recomendado
Security-Aware Portable Device
The STM32L443RCI6 is appropriate for security-aware portable equipment because the verified Mouser and related listings identify AES-256 support. Hardware-assisted encryption can reduce processor workload for protected data handling compared with an implementation that uses software cryptography alone. The device’s 80 MHz Cortex-M4F core and 64 KB RAM also provide room for control logic, protocol state, and encrypted storage workflows. The retrieved data does not specify the exact cryptographic implementation, key-storage provisions, certification scope, or security claims, so do not treat AES-256 support as a complete product-security certification. Validate boot protection, update mechanisms, key handling, and fault behavior in the final design.
Recomendado
DFSDM-Based Signal Acquisition
The STM32L443RCI6 can serve signal-acquisition designs because DFSDM is explicitly listed among the device features, while the Cortex-M4F core provides 32-bit processing and floating-point support. DFSDM is commonly evaluated for sigma-delta modulator interfaces and digitally filtered measurement channels, allowing selected sensor or audio signals to be conditioned in the MCU domain. Exact converter counts, input timing, filter resources, and supported front-end configurations are not present in the retrieved data and must be confirmed in the official datasheet. Engineer analog input filtering, reference voltage, clocking, grounding, and timing margins together; a digital filter cannot compensate for an unsuitable analog front end.
Recomendado
Industrial Monitoring Controller
The STM32L443RCI6 is well matched to compact industrial monitoring controllers that need deterministic control, local data processing, USB or LCD connectivity, and low-power operation. The 80 MHz Cortex-M4F core and 64 KB RAM support protocol handling and real-time control, while the listed AES-256 capability can support protected configuration or telemetry paths. Industrial suitability still depends on the exact operating-temperature rating, supply limits, isolation, EMC design, and watchdog behavior, none of which are specified in the retrieved snippets. Confirm those parameters before release. The 64-UFBGA package helps reduce board area, but its assembly complexity requires a capable fabricator and tested land pattern.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para STM32L443RCI6 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | STM32L433RCI6 |
|---|---|---|
| Package | 64-UFBGA (5 x 5 mm) | 64-UFBGA; exact mechanical compatibility is not fully verified |
| Brand | STMicroelectronics | STMicroelectronics |
| Flash Memory | 256 KB | 256 KB |
| Drop-In Status | Target device | Candidate only; pin and electrical equivalence requires validation |
Diferenciadores clave
- Higher verified feature integration in the target listing (frente a STM32L433RCI6)
- Explicit Cortex-M4F positioning (frente a STM32L433RCI6)
- Documented commercial availability signals (frente a STM32L433RCI6)
Notas de diseño
Use the official STM32L443RCI6 land pattern and verify the 64-UFBGA ball assignment against the manufacturer pinout before routing. A 5 x 5 mm package does not establish a usable footprint by itself; pad dimensions, solder-mask rules, paste apertures, assembly constraints, and exposed-ball requirements must come from the approved package drawing. Reserve short escape paths for high-speed or sensitive signals and keep the USB, clock, and selected communication routes away from noisy power paths where practical.
Plan the complete power tree from the manufacturer voltage limits and peripheral requirements. The retrieved data confirms the MCU, memory, and several peripherals but does not provide the exact supply range, core voltage, I/O voltage, or current limits. Do not guess those values or assume that USB, LCD, and DFSDM can operate from the same rail. Validate startup sequencing, decoupling placement, analog and digital return paths, and the current margin under the worst operating mode before release.
Do not treat a related STM32L4 part as a drop-in replacement solely because a distributor comparison shows the same 64-UFBGA package and 256 KB Flash. Verify every used ball, alternate-function mapping, voltage domain, clock source, memory behavior, peripheral difference, and package tolerance. Review the official errata and boot/firmware assumptions as well. The supplied search results establish only family-level similarity and do not quantify pin-level or electrical compatibility.
For USB, DFSDM, LCD, or other timing-sensitive interfaces, derive the routing strategy from the official electrical and timing requirements. Keep clocks and sensitive inputs short, provide a continuous return path, control impedance according to the board stack-up, and place required termination or protection components where their datasheets specify. The retrieved snippets do not provide edge rates, USB details, or DFSDM timing, so these values must be obtained from the manufacturer documentation rather than inferred from the 80 MHz core frequency.
Información de cumplimiento
The supplied verified data does not state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification status. The component is categorized as a microcontroller, so AEC-Q100 is recorded as not applicable rather than qualified.
