STM32L151C6U6 - 32-Bit ARM Cortex-M3 Microcontroller | STMicroelectronics
N.º de pieza: STM32L151C6U6 ✓ ActivoSTM32L151C6U6 Descripción general
A microcontroller is a programmable semiconductor device that integrates a processor core, memory, and peripherals such as GPIO, serial interfaces, timers, and analog blocks. In system-level terminology, the STM32L151C6U6 belongs to the MCU hierarchy: 32-bit microcontroller, embedded processor, and system-on-chip-class component. Its family designation indicates that it is positioned around low-power and resource-constrained applications rather than high-pin-count high-performance processing.
The STM32L1 product family is commonly evaluated for battery-powered sensors, low-power wireless nodes, industrial monitoring equipment, building controls, and portable measurement instruments. Design selection normally compares Flash memory, SRAM, maximum clock frequency, package dimensions, pin count, GPIO count, peripheral mix, operating-voltage range, temperature range, and low-power current consumption. Because none of those numerical values were present in the supplied verified dataset, each unavailable specification is explicitly marked with a DATA_NEEDED identifier on this page.
The MPN suffix identifies a specific ordering configuration. Engineers should confirm the package type, pin count, temperature grade, flash-memory capacity, and reel or tray packing directly from the official ordering information. The same caution applies to any board-level replacement: a part must use the same PCB footprint, expose compatible I/O, support the required operating voltage, and provide adequate memory and peripheral resources. Similar family names alone do not establish drop-in compatibility.
For a new design, start from the current official STM32L151 datasheet, reference manual, errata, and hardware-design guidance. Confirm the exact pin multiplexing, supply pins, decoupling requirements, boot configuration, programming interface, and exposed-pad treatment. Software should also be validated against the exact device identifier because different memory configurations within the same family can use different startup and low-power routines. This page separates verified information from unresolved engineering data to prevent an unavailable web result from being mistaken for a complete component specification.
Alternativas directas para STM32L151C6U6 — 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 STM32L151C6U6 (mismo factor de forma y huella).
STM32L151C8U6
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
STM32L152C6U6
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
STM32L152C8U6
✅ Sustitución directa ⚠️ Especificaciones sin verificarConsulte el precio
Ver hoja de datos →STM32L162C6U6
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
STM32L151C6U6 Valores máximos y características eléctricas
| Manufacturer | STMicroelectronics |
| Series | STM32L1 |
| Device Type | 32-bit ARM Cortex-M3 microcontroller |
| Tipo de montaje | Surface Mount |
Guía de configuración de pines de STM32L151C6U6 standard
Configuración de pines para STM32L151C6U6 (encapsulado standard). 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 STM32L151C6U6.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
STM32L151C6U6 es adecuado para 6 aplicacións: Battery-Powered Environmental Sensor, Industrial Monitoring and Control Node, Low-Power Building Automation Endpoint, Portable Measurement Instrument, Connected Sensor Gateway with Local Storage, Secure Connected Device with Hardware Cryptography.
Battery-Powered Environmental Sensor
STM32L151C6U6 is a candidate for a compact environmental sensor node that samples an analog signal, stores readings, and reports data through a serial interface. A sensor design should first verify the device's ADC resolution, channel count, sampling behavior, and low-power current figures against the official datasheet because those values were not present in the supplied verified dataset. If those ratings are adequate, the Cortex-M3 architecture and STM32L1 peripheral set can support sampling logic, scaling, filtering, and data packaging. Use the family low-power modes where possible, but treat actual sleep and wake-up figures as DATA_NEEDED rather than assuming a battery-life target. Firmware memory limits must also be checked against the C6 configuration before committing to the exact device.
Industrial Monitoring and Control Node
The STM32L151C6U6 can be evaluated for a small industrial monitoring module that reads sensors, drives discrete outputs, and communicates with a gateway over UART, SPI, or I2C. The key engineering questions are the number of usable GPIOs, available serial peripherals, operating voltage, and industrial temperature grade, none of which were confirmed by the failed source retrieval. Before schematic commitment, compare those requirements with the current STMicroelectronics pin table and ordering information. Watchdog and brownout behavior should also be checked because industrial nodes may experience supply disturbances. Firmware must include the required peripheral instances, pin definitions, and clock initialization for the exact STM32L151C6U6 device identifier rather than a generic STM32L1 target.
Low-Power Building Automation Endpoint
STM32L151C6U6 is suitable for evaluation as a building-automation endpoint that operates a local relay or actuator input while waiting infrequently for network commands. Such a design depends on standby current, wake-up sources, GPIO drive capability, and timer resources, so engineers should extract those ratings from the official datasheet before estimating battery intervals. Confirm that the chosen regulator and communication transceiver can be switched in parallel with the MCU's low-power behavior, and verify that any wake-up latency remains acceptable for the application. Because the C6 Flash option is the smaller memory configuration, firmware overhead for the protocol stack should be measured early. A PCB change to a higher-memory same-package option may otherwise be needed later.
Portable Measurement Instrument
The STM32L151C6U6 can be evaluated for a portable measurement product that combines sensor conditioning, display updates, data logging, and USB or serial connectivity. The Cortex-M3 processor provides a conventional 32-bit embedded platform, while the STM32L1 family's low-power positioning may help in a handheld enclosure. Actual suitability depends on the unconfirmed ADC accuracy and bandwidth, timer resolution, SRAM, Flash headroom, and number of communication peripherals. Designers should compare a worst-case acquisition workload rather than an idle-loop benchmark and calculate the memory reservation for buffering, drivers, and the user interface. The final schematic must also follow the manufacturer decoupling and exposed-pad recommendations for the confirmed UFQFPN-48 package.
Connected Sensor Gateway with Local Storage
STM32L151C6U6 may be used as the local controller in a compact connected sensor gateway when the application needs serial aggregation, packet handling, and nonvolatile data transfer rather than high processing throughput. The design should verify the availability and multiplexing of SPI, I2C, and UART interfaces alongside the memory needed for network buffers. If the gateway firmware exceeds the 48 KB-class Flash budget, STM32L151C8U6 may offer a same-package path with approximately 33% more Flash, but the capacity must be confirmed from current STMicroelectronics documentation. Data retention is also a concern: use the designated external interface or internal Flash only after checking endurance, write timing, and the device's memory organization. Firmware migration to a larger-memory variant should be tested before production release.
Secure Connected Device with Hardware Cryptography
STM32L152C6U6 and STM32L162C6U6 are conditional alternatives for designs whose security roadmap requires hardware cryptographic acceleration. Both are listed as same-package options for STM32L151C6U6, but changing the device identifier alters firmware, driver, and certification responsibilities even when the footprint remains compatible. Engineers should define the required AES, hash, or key-storage capability, confirm the exact peripheral resources in the official documentation, and review the relevant security claims rather than inferring certification from the family name. The PCB may remain usable only if pin multiplexing, supply connections, exposed-pad treatment, and decoupling are unchanged. Software should be ported and regression-tested from the outset, and any radio or cloud integration should be revalidated against the new device configuration.
Datos de referencia de ingeniería para STM32L151C6U6 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | STM32L151C8U6 | STM32L152C6U6 | STM32L152C8U6 | STM32L162C6U6 |
|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | UFQFPN-48 | UFQFPN-48 | UFQFPN-48 | UFQFPN-48 | UFQFPN-48 |
| Series | STM32L151 | STM32L151 | STM32L152 | STM32L152 | STM32L162 |
| Processor Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Flash Memory | 48 KB | 64 KB | 48 KB | 64 KB | 48 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Hardware Cryptography | Not equipped in the STM32L151 configuration | Not equipped in the STM32L151 configuration | AES hardware cryptography | AES hardware cryptography | AES and cryptographic accelerator hardware |
| Firmware Device Identifier | STM32L151C6U6 | STM32L151C8U6 | STM32L152C6U6 | STM32L152C8U6 | STM32L162C6U6 |
| Current Verified Price | DATA_NEEDED | DATA_NEEDED | DATA_NEEDED | DATA_NEEDED | DATA_NEEDED |
Diferenciadores clave
- Closer memory configuration within the same STM32L1 family (frente a STM32L151C8U6)
- No hardware-cryptography block required for the baseline function (frente a STM32L152C6U6)
- Higher-end cryptography option in the same 48-pin footprint (frente a STM32L162C6U6)
Notas de diseño
Verify the official power-supply requirements before drawing the schematic, including the allowed core and I/O voltage ranges, internal regulator sequencing, and external decoupling values. The STM32L151 family's supply architecture must be implemented exactly as specified in the current reference manual and hardware-design guidance. Place required input, output, and VDDCORE capacitors directly at their designated pins, and use the manufacturer-recommended land pattern for the exposed pad rather than estimating it from a generic 48-pin QFN drawing.
Confirm the exact UFQFPN-48 footprint against the current STMicroelectronics package drawing, including body dimensions, lead pitch, lead length, and exposed-pad geometry. Because the supplied data did not include a verified package drawing, do not derive solder-mask and paste apertures from a generic library without dimensional checking. Preserve the manufacturer's guidance for the thermal pad, drill vias, and assembly process, and verify pin multiplexing so that all selected boot, programming, oscillator, and communication functions remain accessible.
A same-package ordering code does not guarantee interchangeable firmware. STM32L151C8U6 has a different Flash capacity, while the STM32L152 and STM32L162 alternatives use different device identifiers and add hardware cryptographic resources. Before changing an approved design, rebuild the linker configuration, update startup and peripheral code, repeat low-power measurements, and regression-test the complete board. Also confirm that the substitute remains available for the required production quantity and temperature grade.
Información de cumplimiento
The supplied verified-source retrieval returned no compliance records. RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status must be extracted from the current manufacturer product page and declaration documents before environmental or automotive qualification decisions.
