STM32L152ZDT6 - 32MHz Cortex-M3 USB MCU | ST
N.º de pieza: STM32L152ZDT6 ✓ ActivoSTM32L152ZDT6 Descripción general
What is an ultra-low-power microcontroller? An ultra-low-power microcontroller is a semiconductor controller designed to execute firmware while minimizing energy consumption, particularly during idle, sleep, and standby periods. In the device hierarchy, the STM32L152ZDT6 is an Arm Cortex-M3 microcontroller, a 32-bit reduced-instruction-set processor platform, within the STM32 family of embedded processors and the broader category of embedded semiconductors. Its combination of USB connectivity, real-time-clock capability, analog functions, and low-power wake-up makes it suitable for connected embedded equipment that must balance responsiveness with restricted energy budgets.
Key features include the 32 MHz Arm Cortex-M3 processor, 384 KB of Flash memory, and integrated USB connectivity. The 10 serial ports support multiple communication tasks without requiring a separate protocol controller. An RTC provides timekeeping for data logging, alarms, and scheduled operations, while LCD support can simplify instrument and human-interface designs. The manufacturer material also identifies analog functions, a memory interface, seven low-power modes, and an 8 μs wake-up time as defining characteristics of the STM32L152xD family.
Technically, the STM32L152ZDT6 belongs to the STM32L1 low-power microcontroller family and supports operation at up to 32 MHz. Its extensive peripheral integration reduces the number of external devices required in USB-connected embedded products. The 144-LQFP package also provides a large pin count, supporting the family connectivity, analog, timing, and memory-interface functions. The supplied source data confirms the 384 KB Flash configuration but does not specify RAM capacity, exact analog converter performance, pin assignments, or detailed absolute maximum ratings; these values must be confirmed in the manufacturer documentation.
Typical applications include low-power USB data loggers, industrial sensing nodes, battery-powered instruments, LCD-equipped control panels, and connected embedded accessories. In each case, the combination of USB, RTC, serial interfaces, analog functions, and fast wake-up can reduce board complexity. Designers should also evaluate whether the 384 KB Flash configuration is sufficient for the firmware image, USB stack, bootloader, diagnostics, and application data before committing to a PCB layout.
A key design consideration is that firmware, USB enumeration, clock configuration, and low-power state transitions must be coordinated to obtain the intended energy profile. USB connection can influence whether the device remains in a low-power state, so the application should use the manufacturer's clock, GPIO, and low-power recommendations. Decoupling, exposed-pad or thermal considerations, and signal routing should be designed from the complete package documentation rather than inferred from the distributor summaries.
This page consolidates verified distributor and manufacturer information, a 144-LQFP package identity, pricing evidence, application guidance, and a documented scarcity of verified drop-in alternatives. It also separates confirmed STM32L152ZDT6 characteristics from parameters that still require engineering verification, helping procurement and design teams make traceable engineering decisions without treating generic STM32 alternatives as automatic replacements.
Alternativas directas para STM32L152ZDT6 — 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 STM32L152ZDT6 (mismo factor de forma y huella) — difiere en Flash Memory, Package, Product Type, Wake-Up Time.
STM32L151ZDT6
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STM32L152ZDT6 Valores máximos y características eléctricas
| Product Type | Ultra-low-power 32-bit microcontroller |
| CPU Core | Arm Cortex-M3 |
| CPU Architecture | ARM 32-bit RISC |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 384 KB (384K x 8) |
| USB Connectivity | Universal Serial Bus integrated |
| Real-Time Clock | RTC integrated |
| LCD Support | LCD controller integrated |
| Analog Functions | Analog functions integrated |
| Serial Port Count | 10 ports |
| Memory Interface | Memory interface integrated |
| Wake-Up Time | 8 μs |
| Low-Power Modes | 7 modes |
| Operating Supply Without BOR | 3.6 V maximum |
| Encapsulado | 144-LQFP (20 x 20 mm) |
| Recuento de pines | 144 pins |
| Tipo de montaje | Surface mount |
| Estado del ciclo de vida | Active |
Guía de configuración de pines de STM32L152ZDT6 144-lqfp (20 x 20 mm)
Configuración de pines para STM32L152ZDT6 (encapsulado 144-lqfp (20 x 20 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 STM32L152ZDT6.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
STM32L152ZDT6 es adecuado para 6 aplicacións: Low-Power USB Data Logger, Battery-Powered Sensor Node, Industrial Monitoring Controller, LCD Instrument Panel, USB-C Configured Embedded Accessory, Portable Medical or Laboratory Module.
Low-Power USB Data Logger
The STM32L152ZDT6 fits a USB-connected logger because it integrates USB, a 32 MHz Arm Cortex-M3 core, 384 KB of Flash, an RTC, and 10 serial ports. The RTC supports time-stamped records, while the serial interfaces can connect sensors or external memory. Its seven low-power modes and 8 μs wake-up time permit event-driven sampling rather than continuous operation. The key design trade-off is that USB activity and sensor duty cycle must be coordinated to control average power; the verified sources do not provide a numeric USB-suspend current, so that figure must come from the manufacturer data.
Recomendado
Battery-Powered Sensor Node
The STM32L152ZDT6 suits battery-powered sensing equipment that must wake quickly and remain quiet between measurements. Its 8 μs wake-up time can shorten the active interval, while seven low-power modes support a duty-cycled measurement strategy. The 32 MHz Cortex-M3 core and 384 KB Flash provide room for acquisition logic, local filtering, diagnostics, and USB firmware. Engineers should allocate GPIO states and analog channels carefully during sleep, then verify the board-level sleep current because the supplied excerpt does not include a numeric low-power consumption value.
Recomendado
Industrial Monitoring Controller
The STM32L152ZDT6 provides a practical integration point for industrial monitoring equipment requiring both low-power behavior and multiple wired interfaces. Its 10 serial ports can support several sensors or communication links, while integrated analog functions reduce external signal-conditioning requirements. The 144-LQFP package offers many available pins for digital I/O and expansion. The verified operating excerpt indicates a 3.6 V maximum without BOR, so industrial supply design must preserve the required startup and brown-out margins. Firmware should validate every peripheral instance and low-power transition under worst-case bus activity.
Recomendado
LCD Instrument Panel
The STM32L152ZDT6 is appropriate for an LCD-equipped instrument because it combines LCD support, an RTC, 384 KB Flash, and a broad set of serial and analog functions in one package. The RTC can maintain elapsed-time or time-of-day records, while the microcontroller manages display updates, keys, measurements, and communications. Its 32 MHz Cortex-M3 core supports responsive user-interface logic, and the seven low-power modes can reduce consumption when the panel is inactive. The actual segment count, display memory, and electrical timing limits must be confirmed against the complete manufacturer documentation.
Recomendado
USB-C Configured Embedded Accessory
The STM32L152ZDT6 can serve as the central controller in a compact USB-connected accessory that exchanges configuration data, records events, or exposes peripheral status. USB integration, 384 KB Flash, an RTC, and 10 serial ports permit one device to combine host control with local sensor aggregation. The 20 x 20 mm 144-LQFP package exposes substantially more pins than a small MCU, supporting external memory and interface expansion. Layout must route USB signals according to the manufacturer recommendations, and the firmware should implement stable device descriptors, suspend handling, and controlled wake behavior.
Recomendado
Portable Medical or Laboratory Module
The STM32L152ZDT6 can support portable measurement modules where compactness, low-power wake-up, and local data handling are important. Its analog functions, memory interface, 10 serial ports, RTC, and USB connectivity enable a self-contained instrument that can acquire data, maintain timestamps, and transfer results. The 384 KB Flash provides useful firmware capacity for control, calibration, and USB logic, while seven low-power modes support duty-cycled operation. Safety, measurement accuracy, leakage, and regulatory requirements are application-specific and cannot be inferred from the supplied component summary.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para STM32L152ZDT6 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | STM32L151ZDT6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | 144-LQFP (20 x 20 mm) | 144-LQFP (20 x 20 mm) |
| CPU Core | Arm Cortex-M3 | Arm Cortex-M3 |
| Maximum CPU Frequency | 32 MHz | 32 MHz |
| Flash Memory | 384 KB | 384 KB |
| USB Connectivity | Integrated USB | No USB connectivity in the verified family description |
| Real-Time Clock | Integrated RTC | Integrated RTC |
| LCD Support | Integrated | Integrated |
| Serial Port Count | 10 ports | 10 ports |
| Wake-Up Time | 8 μs | 8 μs |
Diferenciadores clave
- USB connectivity within the STM32L1 low-power platform (frente a STM32L151ZDT6)
- Large-package peripheral integration (frente a STM32L151ZDT6)
- Fast event-driven response (frente a STM32L151ZDT6)
Notas de diseño
The verified data confirms seven low-power modes and an 8 μs wake-up time but does not supply state-specific current values. Configure unused GPIOs and peripherals to prevent leakage, disable clocks after acquisition, and measure the complete product's sleep and wake energy rather than relying on a generic MCU figure. For USB-connected products, account separately for active transfer, enumeration, suspend, and periodic sensor or RTC activity because each phase can dominate the power budget.
Use the official STM32L152xD 144-LQFP package drawing and pin definition before assigning board functions. Place required input, output, and decoupling capacitors adjacent to their associated pins, provide a clean ground reference, and route USB and other sensitive signals with controlled return paths. Do not infer unused or alternate-function pins from the LQFP lead count; validate every net against the complete manufacturer pinout and application notes.
The 384 KB Flash value should be checked against the actual firmware image, bootloader, USB stack, calibration data, and update mechanism rather than treated as entirely free application space. Also verify the complete operating-voltage and BOR limits, clock setup, reset behavior, and low-power transitions. The verified excerpt only establishes a 3.6 V maximum without BOR, so production firmware and hardware must not infer every brown-out or supply condition from that single statement.
Información de cumplimiento
The verified excerpts confirm an active lifecycle status but do not explicitly provide RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations for the exact ordering code.