STMicroelectronics

STM32L051C6T6 - 32MHz Cortex-M0+ 32KB MCU | STMicroelectronics

N.º de pieza: STM32L051C6T6 ✓ Activo
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2.5 V / 3.3 V device description Vdss 48-LQFP Package 32 MHz Speed 32 KB Memory
Desde $1.94 USD / unidad
MOQ: 1 |
Precio actualizado: 2026-10-22
Precios por volumen
Cant. Precio unitario Total
1 $2.8671 $2,87
10 $2.76 $27,60
100 $2.52 $252,00
500 $2.18 $1.090,00
1.000 $1.94 $1.940,00
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STM32L051C6T6 Descripción general

The STMicroelectronics STM32L051C6T6 is an ultra-low-power 32-bit Arm Cortex-M0+ microcontroller rated at 32 MHz, with 32 KB of Flash memory and 8 KB of RAM, housed in a 48-pin LQFP package. It belongs to STMicroelectronics’ STM32L0 access-line family and combines a compact general-purpose controller with energy-saving modes for embedded designs.

A microcontroller is a programmable semiconductor system that integrates a CPU core, memory, I/O, and peripherals on one device. In the STM32 hierarchy, this MCU belongs to the STM32 family, the STM32L0 series, and the Arm Cortex-M0+ embedded-processing class. That architecture supports compact control firmware while separating larger tasks from low-power sensing or monitoring functions.

The verified product information identifies a 32-bit Arm Cortex-M0+ core, 32 MHz operating frequency, 32 KB Flash, and an LQFP package measuring 7 mm by 7 mm. Distributor records also identify this orderable variant as a 48-pin tray-packaged device. The STM32L051x6/8 family description additionally lists embedded memory protection, enhanced I/O, and low-power capabilities, although individual peripheral values are not present in the supplied verification data.

Ultra-low-power MCU architecture is particularly useful where average energy consumption matters more than maximum processing throughput. A device such as the STM32L051C6T6 can serve as the central controller for a battery-powered sensor node, industrial monitoring module, or connected actuator controller. Its 32 MHz Cortex-M0+ core provides a straightforward Arm software target, while 32 KB Flash constrains firmware and boot-code capacity compared with higher-memory STM32 devices.

Potential uses include compact environmental sensors, low-power condition-monitoring nodes, appliance controls, meter interfaces, actuator controls, and embedded accessories that periodically wake a controller to acquire or process data. The 48-LQFP package also exposes more I/O than small dual in-line packages, but it requires a larger PCB footprint and careful assembly planning.

Design planning should begin with the manufacturer’s pinout, memory map, and electrical limits. Do not infer unavailable GPIO, timer, analog, communication, voltage, current, or temperature specifications from family-level descriptions. Confirm that 32 KB of Flash is sufficient for the final bootloader and application, and review the exact peripheral mapping for each 48-pin board design.

This product page combines verified manufacturer specifications, distributor availability, sourcing details, and application guidance. It also distinguishes exact drop-in alternatives from broader functional substitutes, helping engineers make PCB-level decisions without treating different Cortex-M devices as interchangeable.

Alternativas directas para STM32L051C6T6 — 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 STM32L051C6T6 (mismo factor de forma y huella) — difiere en Package, Flash Memory, Communication Interfaces, Core, Low-Power Modes.

STMicroelectronics
Package: 48-LQFP (7x7 mm)
Flash Memory: 64 KB
Communication Interfaces: USART, SPI, I2C, USB (on selected variants)
Comparar con STM32L051C6T6 →
STMicroelectronics
Package: LQFP-48 (7x7 mm)
Flash Memory: 64 KB
Communication Interfaces: I2C, SPI, USART
Comparar con STM32L051C6T6 →

Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:

STM32L051C8T3

✅ Sustitución directa
STMicroelectronics
📦 48-LQFP
ARM Cortex-M0+ 32-bit RISC · 32 MHz · 64 KB · 8 KB · 1.65 V to 3.6 V · 48-LQFP (7x7 mm) · -40 C to +85 C (T3 suffix = -40C to +125C operating, industrial grade) · 37 (typical for LQFP-48 STM32L0)

✓ En stock

$2.21 / unidad

Ver hoja de datos →

STM32L051C8T6

✅ Sustitución directa
STMicroelectronics
📦 48-LQFP
ARM Cortex-M0+ · 32 MHz · 64 KB · 8 KB · 1.8 V to 3.6 V · -40°C to +85°C · LQFP-48 (7x7 mm) · 12-bit

✓ En stock

$0.9773 / unidad

Ver hoja de datos →

STM32L051C8T7

✅ Sustitución directa
📦 48-LQFP
Same STM32L051 family and 48-LQFP format; Flash differs by 32 KB and temperature-grade coding requires order-code verification.

📋 Alternativa de referencia (no en el catálogo)

STM32L073CBT6

✅ Sustitución directa
📦 LQFP-48
Same STMicroelectronics LQFP-48 format and Cortex-M0+ class; Flash differs by 32 KB, while full peripheral and pin identity remains unverified in the supplied data.

📋 Alternativa de referencia (no en el catálogo)

STM32L152C6T6A

✅ Sustitución directa
📦 LQFP-48
Same STMicroelectronics LQFP-48 format and 32 KB Flash, but the CPU changes from Cortex-M0+ to Cortex-M3 and RAM differs from 8 KB to 16 KB.

📋 Alternativa de referencia (no en el catálogo)

STM32L051C6T6 Valores máximos y características eléctricas

Product Type 32-bit microcontroller
CPU Core Arm Cortex-M0+
Instruction Set Architecture 32-bit Arm RISC
Maximum CPU Frequency 32 MHz
Flash Memory 32 KB
RAM 8 KB
Data EEPROM 2 KB at family level; STM32L051C6 variant capacity requires datasheet confirmation
Family Flash Capacity Up to 64 KB across STM32L051x6/8 family
Family Data EEPROM 2 KB across STM32L051x6/8 family
Memory Protection Unit Present at family level
Encapsulado 48-LQFP
Package Dimensions 7 mm x 7 mm
Recuento de pines 48 pins
Tipo de montaje Surface mount
Operating Supply 2.5 V / 3.3 V device description
Low-Power Modes Ultra-low-power operation; exact mode currents require datasheet confirmation

Guía de configuración de pines de STM32L051C6T6 7 mm x 7 mm

Configuración de pines para STM32L051C6T6 (encapsulado 7 mm 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.

Diagrama de patillaje del encapsulado 7 mm x 7 mm para STM32L051C6T6

No hay datos detallados de patillaje disponibles para STM32L051C6T6.

Consulte la hoja de datos para ver la configuración completa de patillas.

Aplicaciones típicas

STM32L051C6T6 es adecuado para 6 aplicacións: Battery-Powered Environmental Sensor Node, Industrial Condition Monitoring, Smart Meter Data Acquisition, Low-Power Actuator Controller, Connected Appliance Controller, Portable Medical or Wellness Device Control.

🧩

Battery-Powered Environmental Sensor Node

The STM32L051C6T6 fits an environmental sensor node that periodically reads temperature, humidity, or gas data and transmits a compact status record. Its verified 32 MHz Arm Cortex-M0+ core can execute acquisition, filtering, and communication-control firmware, while the STM32L0 family’s ultra-low-power positioning supports duty-cycled operation. The 32 KB Flash budget must include the bootloader, drivers, protocol stack, and application logic. A production design should verify active and sleep currents from the manufacturer datasheet, then size the battery around the selected sensor’s duty cycle and wake frequency.

🏭

Industrial Condition Monitoring

The STM32L051C6T6 can serve as the local controller for an industrial vibration, temperature, or equipment-state monitor. Its 32-bit Cortex-M0+ architecture handles sampling sequencing, threshold checks, event logging, and communication framing, while 8 KB RAM supports bounded real-time processing. The 48-LQFP package provides more external connections than small packages, which is useful for multiple digital inputs or sensor interfaces. Engineers must still confirm the required timers, ADC channels, comparators, serial interfaces, and supply limits against the official datasheet before freezing the design.

📡

Smart Meter Data Acquisition

The STM32L051C6T6 is appropriate for a compact meter interface that gathers pulse, status, or sensor measurements and prepares data for transmission. The 32 MHz core is suitable for deterministic protocol handling and measurement control, while the STM32L0 access-line positioning supports low-power meter designs. Firmware capacity is the principal constraint: the verified 32 KB Flash leaves limited room for a bootloader, communications, security updates, and application code. Designers should reserve memory during architecture planning and confirm the exact pin multiplexing and metering peripherals in the manufacturer documentation.

⚡

Low-Power Actuator Controller

The STM32L051C6T6 can coordinate valves, relays, or small motor-control stages in a low-power actuator subsystem. Firmware can manage digital commands, status feedback, interlocks, and fault reporting while the Cortex-M0+ core executes control logic at up to 32 MHz. The 48-LQFP package supports a mixture of control and communication signals, but every assigned peripheral function must be checked against its alternate-function table. Validate output current, isolation, flyback paths, and shutdown behavior at the system level because pin-level drive limits are not included in the supplied source data.

📱

Connected Appliance Controller

The STM32L051C6T6 fits an appliance controller that combines local user-interface logic, sensor monitoring, and a simple communications link. Its Arm Cortex-M0+ ecosystem supports a compact embedded-control software stack, and the STM32L0 family’s low-power emphasis is useful in standby or intermittent operating modes. The design must ensure that the 32 KB Flash and 8 KB RAM budgets cover all control paths, including production boot and updates. Before schematic capture, confirm display, serial, keypad, and motor-control requirements because the supplied source does not enumerate the exact peripheral configuration.

💊

Portable Medical or Wellness Device Control

The STM32L051C6T6 may be evaluated for a compact wellness-device controller that gathers low-bandwidth sensor data, applies basic filtering, and records operating status. Its compact 32-bit controller and low-power-family positioning are useful for portable products, while the 48-LQFP package simplifies access to multiple external signals. Medical designs require more than processor selection: engineers must assess electrical isolation, sensor accuracy, firmware controls, risk documentation, and applicable quality requirements. Use this MCU as a candidate only after confirming exact analog, communication, and power specifications from the manufacturer datasheet.

What are the key specifications of STM32L051C6T6 that engineers should know?
The STM32L051C6T6 is a 32-bit ultra-low-power Arm Cortex-M0+ MCU with a 32 MHz maximum CPU frequency, 32 KB Flash, 8 KB RAM, and a 48-pin LQFP package. According to the official STMicroelectronics STM32L051C6 datasheet, the broader STM32L051x6/8 family includes a memory protection unit and embedded memories. The distributor record identifies the exact C6T6 order code with 32 KB Flash in a 7 mm by 7 mm LQFP.
Where can I download the STM32L051C6T6 datasheet PDF?
The official STM32L051C6T6 datasheet PDF is available from STMicroelectronics at https://www.st.com/resource/en/datasheet/stm32l051c6.pdf. The verified distributor listings also link to the manufacturer product family page at st.com. Engineers should use the ST document for the exact package pinout, electrical limits, peripheral configuration, memory map, and programming information; those details were not fully present in the supplied search snippets.
What is the operating voltage of STM32L051C6T6?
The verified distributor description identifies STM32L051C6T6 as a 2.5 V / 3.3 V microcontroller. This description supports nominal 2.5 V and 3.3 V operating points, but the supplied data does not state the exact minimum and maximum supply voltages. For a production design, consult the manufacturer datasheet and confirm absolute maximum ratings, internal regulator behavior, I/O limits, and decoupling requirements before applying power.
Where to buy STM32L051C6T6 online?
STM32L051C6T6 is listed online by DigiKey, Mouser, LCSC, Win Source, and other distributors in the verified results. DigiKey describes the part as available for current ordering, while LCSC reports an in-stock unit price beginning at $2.8671 as of 2026-10-23. Buyers should compare authorized-channel inventory, date codes, packing method, and quantity breaks before issuing production procurement.
What is the price of STM32L051C6T6?
The lowest verified web price for STM32L051C6T6 is $2.8671 per unit from LCSC as of 2026-10-23. DigiKey and Mouser provide distributor purchasing pages, but the supplied results do not include their numeric prices. Therefore, the XAIPART tiers beyond the verified single-unit reference use indicative volume levels rather than distributor-confirmed quotations and must be checked before ordering.
What is the lead time for STM32L051C6T6 and is it in stock?
LCSC identifies STM32L051C6T6 as in stock, and DigiKey states that it can ship today; these statements reflect the retrieved distributor snippets as of 2026-10-23. The supplied data does not provide a contractual lead time or XAIPART inventory quantity. For production planning, request a written quotation and confirm factory stock, allocation, packaging, and the approved manufacturer-authorized sourcing channel.
Is STM32L051C6T6 suitable for a low-power sensor node?
The STM32L051C6T6 is suitable as a candidate for a low-power sensor node because STMicroelectronics classifies it in the access-line ultra-low-power STM32L051x6/8 family. It combines an Arm Cortex-M0+ core, 32 MHz processing capability, and 32 KB Flash with the family’s low-power focus. Final suitability depends on the selected sensor, wake interval, active-time current, and verified low-power mode currents, which are not included in the supplied data.
STM32L051C6T6 vs STM32L073CBT6: which is better for an embedded design?
STM32L051C6T6 and STM32L073CBT6 are related Arm microcontrollers, but the verified snippets do not establish pin-for-pin compatibility or identical peripherals. STM32L051C6T6 is specified as a 32 MHz Cortex-M0+ device with 32 KB Flash in a 48-LQFP package. Use STM32L073CBT6 only after comparing both manufacturer datasheets for package drawing, alternate functions, supply limits, memory, clocks, and firmware dependencies.
What is the difference between STM32L051C6T6 and STM32F101C6T6?
STM32L051C6T6 is an ultra-low-power STM32L0 Cortex-M0+ microcontroller, whereas the comparison search identifies STM32F101C6T6 as a different STM32 microcontroller family. The supplied evidence does not verify identical pin mappings, electrical characteristics, or peripheral behavior. Treat it as a redesign candidate rather than a drop-in part until its package pins, clock architecture, power ranges, and firmware requirements are validated.
Can STM32L051C6T6 replace STM32L051C8T6?
A cross-reference result lists STM32L051C8T6 as an alternative associated with STM32L051C8T7, but it does not prove drop-in compatibility with STM32L051C6T6. The visible verified records show STM32L051C6T6 with 32 KB Flash, while the C8 designation commonly indicates a different memory configuration. Check the exact C6 and C8 datasheet ordering tables, pin mapping, bootloader behavior, and application firmware before substituting either part.
What can replace STM32L051C6T6 on the same PCB?
No verified cross-manufacturer part in the supplied data is confirmed to be a true drop-in replacement for STM32L051C6T6. A replacement must match the 48-LQFP footprint, pin assignments, supply limits, boot behavior, memory needs, and essential peripheral functions. Cross-family Cortex-M devices may solve the same application but still require hardware and firmware adaptation, so they should not be labeled pin-compatible without complete manufacturer data.
Is STM32L051C6T6 the same as a generic 32 MHz Cortex-M0+ MCU?
No. STM32L051C6T6 is a specific STMicroelectronics MCU with a defined 32 KB Flash configuration, 48-LQFP package, clock system, peripheral map, and device behavior. A generic 32 MHz Cortex-M0+ MCU may use the same instruction-set core while differing in pins, memory, converters, timers, interrupts, low-power modes, and toolchain support. Pin and peripheral comparisons are therefore required before interchangeability can be assumed.
Where can I find the STM32L051C6T6 pinout?
The STM32L051C6T6 pinout is documented in the official STM32L051C6 manufacturer datasheet, available from the STMicroelectronics PDF linked in this product page. The verified package record identifies 48 pins, but the supplied web snippets do not reproduce all terminal names and alternate functions. Pin assignments must therefore be transcribed from the official package drawing and tables rather than inferred from another STM32L0 device.
When should I choose STM32L051C6T6 instead of a higher-memory STM32 MCU?
Choose STM32L051C6T6 when a compact Arm Cortex-M0+ control design fits within its verified 32 KB Flash and 8 KB RAM while benefiting from the STM32L0 ultra-low-power positioning. Choose a higher-memory MCU when boot code, application code, buffers, graphics, or middleware exceed those limits. The decision should include margin for future firmware growth as well as exact peripheral and pin requirements.
What design considerations matter for STM32L051C6T6 power and PCB layout?
Use the official datasheet to set local decoupling, debug access, boot-strapping, clock, reset, and exposed-ground requirements before layout. Keep sensitive analog and clock routes away from noisy switching paths, and follow the manufacturer’s package land pattern. Estimated power loss and wake-time impacts cannot be calculated from the supplied data, so validate them with actual firmware, peripheral settings, and the published electrical characteristics.
What is the lifecycle and compliance status of STM32L051C6T6?
STM32L051C6T6 is treated as active because the verified results include current manufacturer and distributor product listings as of 2026-10-23. The supplied data does not explicitly state a product lifecycle phase, RoHS status, REACH status, halogen-free designation, or conflict-minerals declaration. Procurement and compliance teams should request the current ST product-page declarations and manufacturer documentation rather than infer status from the distributor snippet.

Datos de referencia de ingeniería para STM32L051C6T6 — comparación, orientación de diseño e información de cumplimiento.

Guía de selección

Choose STM32L051C6T6 when a 48-LQFP design needs an Arm Cortex-M0+ core, a 32 MHz maximum clock, 8 KB RAM, and no more than 32 KB Flash. It is particularly relevant to compact low-power control and monitoring products where the STM32L0 access-line positioning is useful. Select STM32L051C8T6 or STM32L051C8T7 when the board footprint is acceptable and additional Flash margin is valuable, after confirming order-code temperature and packing differences. STM32L073CBT6 may suit designs needing more memory, but its 128 KB-class configuration and revised peripheral set require complete pin and firmware review. STM32L152C6T6A offers Cortex-M3 capability and 16 KB RAM, making it a better candidate when compute complexity or RAM outweighs migration effort. No listed alternative should be approved as drop-in until the official package, electrical, memory-map, and peripheral tables are compared.

Comparación con alternativas

Parámetro Este producto STM32L051C8T3 STM32L051C8T6 STM32L051C8T7 STM32L073CBT6 STM32L152C6T6A
Brand STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Package 48-LQFP 48-LQFP 48-LQFP 48-LQFP LQFP-48 LQFP-48
CPU Core Arm Cortex-M0+ Arm Cortex-M0+ at family level Arm Cortex-M0+ at family level Arm Cortex-M0+ at family level Arm Cortex-M0+ at family level Arm Cortex-M3
Maximum CPU Frequency 32 MHz 32 MHz 32 MHz 32 MHz 32 MHz 32 MHz
Flash Memory 32 KB 64 KB indicated by C8 cross-reference 64 KB indicated by C8 cross-reference 64 KB indicated by C8 cross-reference 128 KB indicated by C8 naming; exact order-table value requires datasheet confirmation 32 KB
Product Positioning Access line ultra-low-power MCU STM32L051 access-line family STM32L051 access-line family STM32L051 access-line family STM32L0 family Ultra-low-power Arm Cortex-M3 MCU
Pin Count 48 pins 48 pins 48 pins 48 pins 48 pins 48 pins

Diferenciadores clave

  • Lower on-chip Flash requirement alignment (frente a STM32L073CBT6)
  • Lower RAM footprint than Cortex-M3 alternative (frente a STM32L152C6T6A)
  • Cortex-M0+ software target (frente a STM32L152C6T6A)
  • Same 48-LQFP mechanical family (frente a STM32L051C8T6)

Notas de diseño

Start the layout from the official LQFP-48 land pattern and pin table, including thermal or exposed-pad requirements if specified for the exact order code. Place required decoupling capacitors beside their associated supply pins and preserve the manufacturer’s return-path geometry. The verified data establishes a 7 mm by 7 mm LQFP body but not the land dimensions, so do not scale a generic footprint without consulting the package drawing.

Design the 2.5 V or 3.3 V supply path around the exact regulator output, load current, startup behavior, and maximum tolerance listed in the manufacturer datasheet. Separate analog or sensor supplies from digital switching nodes where practical, and verify every external pin’s voltage domain before connecting it. The supplied data does not provide current consumption or regulator enable requirements, so those values must not be inferred from the 32 MHz CPU rating.

Keep clock, reset, and high-speed communication traces short and routed away from switching nodes. Programmable I/O functions must be assigned from the exact alternate-function matrix for the 48-pin device; changing a package, memory-density code, or temperature-grade code can alter valid pin combinations. Perform an independent pin audit against schematic symbols and compare it with the official package drawing before releasing manufacturing data.

Avoid assuming that all Cortex-M0+ devices with 48-pin packages are interchangeable. The STM32L051C6T6 has a constrained 32 KB Flash and 8 KB RAM budget, and firmware migration can also change interrupt vectors, peripheral addresses, clock setup, and low-power behavior. Treat memory-density and package-code substitutions as separate qualifications, including bootloader, brownout, debug, and production-test checks.

Información de cumplimiento

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Libre de plomo
Unknown
Libre de halógenos
Unknown
Minerales en conflicto
Unknown

The supplied verified results do not explicitly state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification status. AEC-Q100 is marked not applicable because the target order code is not identified as an automotive-qualified variant.

Datos verificados el: 2026-10-23 — datos verificados y seleccionados por el equipo de ingeniería de componentes de XAIPART

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Componentes & términos relacionados

STMicroelectronics STM32L051C6T6 STM32L051C8T6 STM32L073CBT6 STM32L152C6T6A Arm Cortex-M0+ Arm Cortex-M3 Arm Cortex-M0+ microcontroller 32-bit RISC core STM32 family STM32L0 series STM32L051 access line microcontroller embedded processor ultra-low-power MCU Flash memory RAM data EEPROM memory protection unit 48-LQFP LQFP package surface-mount package low-power sensor node industrial condition monitoring smart meter
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