STM32L071CBT7 - 32MHz Cortex-M0+ 128KB MCU | STMicroelectronics
N.º de pieza: STM32L071CBT7 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $8.1244 | $8,12 |
| 10 | $8.1244 | $81,24 |
| 100 | $8.1244 | $812,44 |
| 500 | $8.1244 | $4.062,20 |
| 1.000 | $8.1244 | $8.124,40 |
STM32L071CBT7 Descripción general
An ultra-low-power microcontroller is a semiconductor component optimized to complete embedded control tasks while minimizing energy consumption during active operation, standby, and wake-up transitions. The STM32L0 family sits within the broader hierarchy of microcontroller, embedded processor, embedded control IC, and power-conscious semiconductor. This positioning makes the STM32L071CBT7 suitable for products where battery life, compact size, deterministic control, and low system overhead matter more than maximum compute throughput.
The verified data highlights three principal attributes: a 32 MHz Arm Cortex-M0+ processor, 128 KB of Flash memory, and a 48-LQFP 7 x 7 mm package. LCSC additionally identifies a 12-bit conversion feature and an operating temperature range of -40 C to +105 C. These details make the device a general-purpose embedded controller for low-power sensing, actuator control, portable equipment, and compact industrial modules. The exact RAM, peripheral, voltage, current, and package-pin details must be confirmed against the manufacturer datasheet before design release.
The STM32L071CBT7 is intended for firmware that benefits from a familiar Arm Cortex-M ecosystem, efficient 32-bit instruction execution, and embedded Flash-resident program storage. Its 128 KB Flash capacity is larger than many minimal microcontrollers and can accommodate boot code, application logic, configuration tables, and protocol handlers. The 32 MHz clock provides useful processing headroom for sensor polling, digital filtering, user-interface state machines, and communication-stack tasks, although real-time performance remains dependent on peripherals and firmware configuration.
Typical embedded uses include low-power environmental sensors, battery-operated portable instruments, compact motor or actuator controllers, connected sensing nodes, and industrial automation modules. In a sensor node, the MCU could acquire measurements, filter data, manage a low-power duty cycle, and store operating parameters. In an industrial module, it could coordinate inputs and outputs while supporting field-bus or serial communication. The package and exact peripheral complement should be selected against the mechanical drawing and pin definition.
The primary design consideration is to validate every electrical and pin requirement from the official manufacturer datasheet before layout. Confirm the complete LQFP-48 pin map, supply limits, decoupling requirements, oscillator connections, I/O limits, and programming interface. For a new ultra-low-power design, calculate average current from the selected operating mode, peripheral load, wake-up rate, and measurement duty cycle rather than relying only on the maximum clock frequency.
This page consolidates exact distributor and manufacturer facts, distinguishes verified data from missing parameters, and adds selection, sourcing, and design guidance. It also avoids presenting unverified pin mappings or cross-manufacturer drop-in claims as guaranteed replacements.
Alternativas directas para STM32L071CBT7 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con STM32L071CBT7 (mismo factor de forma y huella) — difiere en Flash Memory, Operating Temperature Range, Package.
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Solicitar alternativasSTM32L071CBT7 Valores máximos y características eléctricas
| Product Type | Ultra-low-power Arm Cortex-M0+ microcontroller |
| Architecture | 32-bit Arm Cortex-M0+ RISC |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 128 KB |
| Flash Organization | 128K x 8 |
| ADC Resolution | 12 bit |
| Rango de temperatura de funcionamiento | -40 C to +105 C |
| Encapsulado | 48-LQFP, 7 x 7 mm |
| Recuento de pines | 48 pins |
| Tipo de montaje | Surface Mount |
Guía de configuración de pines de STM32L071CBT7 48-lqfp, 7 x 7 mm
Configuración de pines para STM32L071CBT7 (encapsulado 48-lqfp, 7 x 7 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 STM32L071CBT7.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
STM32L071CBT7 es adecuado para 6 aplicacións: Low-Power Environmental Sensor Node, Battery-Powered Portable Instrument, Compact Industrial Automation Module, Connected Sensing and Telemetry Node, Actuator and Motor Control Module, Smart Home Sensor Controller.
Low-Power Environmental Sensor Node
The STM32L071CBT7 fits a compact environmental sensor because its 32 MHz Arm Cortex-M0+ core can acquire readings, perform digital filtering, and manage a duty-cycled measurement sequence. Its 128 KB Flash provides room for firmware, calibration tables, and configuration data. The verified ultra-low-power family positioning supports battery-oriented designs, but active and sleep currents are data-needed. Final battery-life validation must therefore use the official operating-current figures, sensor duty cycle, regulator efficiency, and measured wake-up energy.
Recomendado
Battery-Powered Portable Instrument
The STM32L071CBT7 can act as the central controller in a battery-powered instrument because it combines a 32-bit Cortex-M0+ processor with 128 KB of Flash in a 7 x 7 mm LQFP package. This provides processing and program storage in a compact land pattern. Firmware can handle display states, buttons, alarms, data logging, and sensor conditioning. The supplied data does not provide RAM or standby-current values, so the designer should compare those specifications before selecting a battery and estimating runtime.
Recomendado
Compact Industrial Automation Module
The STM32L071CBT7 is suitable for a compact automation module when the required control logic fits 128 KB of Flash and the system needs deterministic 32-bit embedded processing. The MCU can coordinate digital inputs, relay or actuator outputs, status indicators, and serial communication. Its verified -40 C to +105 C range supports designs across industrial temperature environments, although compliance and qualification documents remain unverified. Engineers must still check supply limits, I/O limits, isolation requirements, and EMC design in the official documentation.
Recomendado
Connected Sensing and Telemetry Node
The STM32L071CBT7 can manage a connected sensing node where an Arm Cortex-M0+ processor executes protocol logic and the 128 KB Flash stores firmware and parameters. Its compact 48-LQFP package leaves board area for sensing and radio circuitry. Depending on the selected radio and serial interface, the MCU can packetize measurements and control low-power transmissions. Exact UART, SPI, I2C, and GPIO counts are data-needed, so interface selection must follow the official pin table rather than assumptions from the family name.
Recomendado
Actuator and Motor Control Module
The STM32L071CBT7 can serve in a compact actuator-control module because its 32 MHz Cortex-M0+ core supports real-time state machines, timing, and digital control logic. The 128 KB Flash capacity can hold motion tables, control code, and diagnostic routines. It is most appropriate for modest control tasks rather than computationally intensive motor algorithms. Exact PWM channels, timers, pin mapping, and electrical limits are data-needed, so the STM32L071CB datasheet must be checked before assigning drive signals or selecting a power stage.
Recomendado
Smart Home Sensor Controller
The STM32L071CBT7 fits a smart-home sensor controller when local logic must combine a 32 MHz Arm Cortex-M0+ core with 128 KB of firmware storage. Typical tasks include reading inputs, debouncing switches, maintaining operating state, and communicating status to a gateway. Its small 7 x 7 mm LQFP package supports compact assemblies. Because the verified data does not specify wireless capability, this MCU requires a separate radio; GPIO, serial-interface, and low-power-current details must be confirmed before selecting the network companion and power architecture.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para STM32L071CBT7 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Brand | STMicroelectronics |
| Package | 48-LQFP, 7 x 7 mm |
| CPU Core | Arm Cortex-M0+ |
| CPU Frequency | 32 MHz |
| Flash Memory | 128 KB |
| Flash Organization | 128K x 8 |
| ADC Resolution | 12 bit |
| Operating Temperature Range | -40 C to +105 C |
| Power Class | Ultra-low-power |
Diferenciadores clave
- Compact 128 KB Flash microcontroller (frente a STM32L071CBT6)
- 32 MHz Cortex-M0+ processing (frente a STM32L071CBT3)
- Manufacturer-supported family positioning (frente a STM32L151C6U6)
Notas de diseño
Use the official STM32L071CB 48-LQFP land pattern and pin table before routing the board. Confirm every power pin, ground connection, decoupling requirement, reset connection, programming interface, and oscillator option in the manufacturer documentation. The supplied snippets verify the 7 x 7 mm LQFP envelope but do not provide individual pin names, so reconstructing the footprint from distributor descriptions would risk manufacturing errors.
Validate the power tree against the official supply-voltage and current limits. Estimated: battery-life analysis should calculate average current from active current, sleep or standby current, measurement duration, and wake-up frequency; none of those current values was supplied here. Treat the ultra-low-power family classification as a design direction, not proof of a specific runtime. Measure the complete sensor, regulator, and communications load on finished hardware.
Keep sensitive analog routing away from high-current switching paths and place required input, output, and bypass components according to the manufacturer reference layout. If an external crystal is used, its load and routing must follow the official oscillator guidance. If the internal clock is sufficient, document the accuracy and startup trade-offs. These values are not present in the verified snippets and must be obtained from the datasheet.
Do not substitute STM32L071CBT6, STM32L071CBT3, or another STM32 variant based only on the family name. Verify the temperature suffix, Flash and RAM configuration, package dimensions, pin functions, electrical limits, qualification status, and software device identity. A related orderable MPN can differ in grade or qualification even when its core and memory family are similar. Complete an official comparison before calling any part a drop-in replacement.
Información de cumplimiento
The supplied distributor and manufacturer snippets do not explicitly state environmental compliance or automotive qualification for STM32L071CBT7. The verified -40 C to +105 C range does not by itself establish AEC-Q100 qualification.