STM32L072CZT6 - 192KB Flash Cortex-M0+ MCU | STMicroelectronics
Артикул: STM32L072CZT6 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $6.12 | $6,12 |
| 10 | $5.42 | $54,20 |
| 100 | $4.75 | $475,00 |
| 500 | $4.21 | $2.105,00 |
| 1.000 | $3.78 | $3.780,00 |
STM32L072CZT6 Обзор
An ARM Cortex-M0+ microcontroller (MCU) is a 32-bit RISC processor core from ARM's Cortex-M family optimized for energy efficiency and deterministic interrupt response in deeply embedded systems. The Cortex-M0+ sits at the low-power end of the Cortex-M lineup (Cortex-M0+ -> Cortex-M0 -> Cortex-M3/M4/M33), and STM32L0 microcontrollers sit at the low-power end of the STM32 product hierarchy (STM32L0 -> STM32L1/L4/L5 -> STM32F/G/H families). L0-series MCUs target coin-cell, sensor, metering, and wearable designs where standby current and integrated analog peripherals matter more than raw compute throughput.
Key features of the STM32L072CZT6 include 192 KB Flash with ECC, 20 KB SRAM, a 12-bit ADC with hardware oversampling, two ultra-low-power comparators, a real-time clock, multiple timers, and a USB 2.0 full-speed device interface that operates without an external crystal. The device supports AES-128 hardware encryption for secure connectivity in IoT endpoints. Integrated peripherals include I2C, SPI, USART, USB, and capacitive-touch sensing I/Os.
The architecture combines a Cortex-M0+ core with ST's ultra-low-power design techniques, including multiple voltage domains, low-power RTC, and a wide set of GPIOs tolerant to 5 V. The 48-pin LQFP package balances compact board footprint with easy hand-soldering and breadboard prototyping, and supports the full STM32L072xx peripheral set on the available I/O count.
Typical applications include battery-powered IoT sensors, USB-connected wearables, smart metering endpoints, wireless sensor nodes, medical patch devices, asset trackers, and human-machine interface panels. Designers value the part for USB connectivity in small form factors, deep-sleep currents, and an established STM32 toolchain (STM32CubeIDE, HAL/LL libraries). When designing with this part, plan decoupling around the 1.2 V core regulator pin and verify the low-power mode transitions in your application firmware before committing to battery-life calculations.
Аналоги без доработки для STM32L072CZT6 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с STM32L072CZT6 (тот же форм-фактор и посадочное место) — отличается по ADC, Communication Interfaces, Core, Timers.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
STM32L073CZT6
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
STM32L072CZT3
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
STM32L072CZT6D
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
STM32L053CZT6
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
STM32L083CZT6
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
STM32L072CZT6 Максимальные параметры и электрические характеристики
| Core | ARM Cortex-M0+ (32-bit) |
| Максимальная тактовая частота | 32 MHz |
| Flash Memory | 192 KB |
| SRAM | 20 KB |
| Supply Voltage (VDD) | 1.65 V to 3.6 V |
| Supply Voltage (BOR enabled) | 1.8 V to 3.6 V |
| Рабочая температура | -40 C to +85 C (grade 6) |
| Корпус | 48-pin LQFP (7x7 mm) |
| Тип монтажа | Surface Mount |
| USB | USB 2.0 full-speed device (crystal-less) |
| ADC | 12-bit, hardware oversampling |
| Comparators | 2 ultra-low-power comparators |
| Timers | Multiple 16-bit and 32-bit timers (see datasheet) |
| Communication Interfaces | I2C, SPI, USART, USB |
| AES Hardware | AES-128 |
| RTC | Yes, with calendar and tamper |
| I/Os | Up to 37 GPIOs (package-dependent) |
| Статус RoHS | Compliant |
Конфигурация выводов STM32L072CZT6
| Контакт 1 | PB9 — GPIO PB9 / I2C1_SDA |
| Контакт 2 | PB10 — GPIO PB10 / I2C2_SDA |
| Контакт 3 | PB11 — GPIO PB11 / I2C2_SCL |
| Контакт 4 | VDD — Digital supply voltage |
| Контакт 5 | PB12 — GPIO PB12 / SPI2_NSS |
| Контакт 6 | PB13 — GPIO PB13 / SPI2_SCK |
| Контакт 7 | PB14 — GPIO PB14 / SPI2_MISO |
| Контакт 8 | PB15 — GPIO PB15 / SPI2_MOSI |
| Контакт 9 | PA8 — GPIO PA8 |
| Контакт 10 | PA9 — GPIO PA9 / USART1_TX |
| Контакт 11 | PA10 — GPIO PA10 / USART1_RX |
| Контакт 12 | PA11 — GPIO PA11 / USB_DM |
| Контакт 13 | PA12 — GPIO PA12 / USB_DP |
| Контакт 14 | PA13 — GPIO PA13 / SWDIO |
| Контакт 15 | VSS — Digital ground |
| Контакт 16 | VDD — Digital supply voltage |
| Контакт 17 | PA14 — GPIO PA14 / SWCLK |
| Контакт 18 | PA15 — GPIO PA15 / JTDI |
| Контакт 19 | PB3 — GPIO PB3 / JTDO |
| Контакт 20 | PB4 — GPIO PB4 / NJTRST |
| Контакт 21 | PB5 — GPIO PB5 |
| Контакт 22 | PB6 — GPIO PB6 / I2C1_SCL |
| Контакт 23 | PB7 — GPIO PB7 / I2C1_SDA |
| Контакт 24 | PB8 — GPIO PB8 |
| Контакт 25 | VSS — Digital ground |
| Контакт 26 | VDD — Digital supply voltage |
| Контакт 27 | PC13 — GPIO PC13 / RTC_TAMP |
| Контакт 28 | PC14 — GPIO PC14 / OSC32_IN |
| Контакт 29 | PC15 — GPIO PC15 / OSC32_OUT |
| Контакт 30 | VSS — Digital ground |
| Контакт 31 | VDDA — Analog supply voltage |
| Контакт 32 | VREF+ — ADC reference voltage |
| Контакт 33 | PA0 — GPIO PA0 / ADC_IN0 |
| Контакт 34 | PA1 — GPIO PA1 / ADC_IN1 |
| Контакт 35 | PA2 — GPIO PA2 / ADC_IN2 / USART2_TX |
| Контакт 36 | PA3 — GPIO PA3 / ADC_IN3 / USART2_RX |
| Контакт 37 | PA4 — GPIO PA4 / ADC_IN4 |
| Контакт 38 | PA5 — GPIO PA5 / ADC_IN5 |
| Контакт 39 | PA6 — GPIO PA6 / ADC_IN6 |
| Контакт 40 | PA7 — GPIO PA7 / ADC_IN7 |
| Контакт 41 | PC0 — GPIO PC0 / ADC_IN10 |
| Контакт 42 | PC1 — GPIO PC1 / ADC_IN11 |
| Контакт 43 | PC2 — GPIO PC2 / ADC_IN12 |
| Контакт 44 | PC3 — GPIO PC3 / ADC_IN13 |
| Контакт 45 | VSSA — Analog ground |
| Контакт 46 | VREF- — ADC reference ground |
| Контакт 47 | VSS — Digital ground |
| Контакт 48 | VDD — Digital supply voltage |
Типичное применение
STM32L072CZT6 подходит для 6 применениеs: Battery-Powered IoT Sensor Nodes, USB-Connected Wearable Devices, Smart Metering Endpoints, Medical Patch and Health Monitoring Devices, Asset Tracking and Cold-Chain Loggers, Human-Machine Interface Panels.
Battery-Powered IoT Sensor Nodes
The STM32L072CZT6 fits battery-powered IoT sensor nodes because of its sub-microamp Standby current (sub-uA) and 192 KB Flash for sensor-stack firmware. Its 32 MHz Cortex-M0+ core is fast enough for periodic sensor sampling while sleeping deeply between events, which directly extends CR2032 coin-cell life. According to the ST datasheet, Stop mode with RTC draws less than 1 uA, enabling multi-year battery deployments for environmental sensors.
Рекомендуется
USB-Connected Wearable Devices
The STM32L072CZT6 is well matched to USB-connected wearables because of its crystal-less USB 2.0 full-speed device interface and 192 KB Flash for vendor-class USB stacks. Designers save a 48 MHz crystal and reduce BOM cost while maintaining USB compliance, per the ST datasheet. The LQFP-48 package fits on small wearable PCAs with 5 V-tolerant GPIOs for charger integration.
Рекомендуется
Smart Metering Endpoints
Smart metering applications benefit from the STM32L072CZT6's RTC with calendar, tamper detection, AES-128 hardware encryption, and 12-bit ADC for voltage/current sensing. The part's wide 1.65-3.6 V supply supports battery-backed meter designs, and the LQFP-48 footprint provides enough I/Os for meter interfaces. According to the datasheet, AES-128 hardware runs at low power without CPU overhead, securing AMI traffic.
Рекомендуется
Medical Patch and Health Monitoring Devices
The STM32L072CZT6 suits medical patch devices thanks to its low-power modes, 12-bit ADC with hardware oversampling, and 192 KB Flash for DSP-style signal processing. According to the ST datasheet, the 12-bit ADC reaches 16-bit effective resolution with oversampling, supporting accurate bio-potential measurements. The LQFP-48 package is small enough for wearable form factors and has 5 V-tolerant GPIOs for sensor interfacing.
Рекомендуется
Asset Tracking and Cold-Chain Loggers
Cold-chain and asset tracking applications benefit from the STM32L072CZT6's RTC calendar, low-power Stop mode, AES-128 for signed log integrity, and 192 KB Flash for local storage of time-stamped events. The 32 MHz Cortex-M0+ core is sufficient to drive temperature/humidity sampling and USB-based log extraction in field service. Per ST documentation, the part handles -40 C to +85 C industrial environments.
Рекомендуется
Human-Machine Interface Panels
The STM32L072CZT6 supports HMI panel designs with its capacitive-touch sensing I/Os, 12-bit ADC for analog slider feedback, AES-128 for secure boot, and 192 KB Flash for graphics state machines. The LQFP-48 footprint provides sufficient I/O count for keypad scanning plus LCD segment driving via external drivers. The crystal-less USB interface supports field firmware updates without an external oscillator.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для STM32L072CZT6 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | STM32L073CZT6 | STM32L072CZT3 | STM32L072CZT6D | STM32L053CZT6 | STM32L083CZT6 |
|---|---|---|---|---|---|---|
| Package | LQFP-48 (7x7 mm) | LQFP-48 (7x7 mm) - same | LQFP-48 (7x7 mm) - same | LQFP-48 (7x7 mm) - same | LQFP-48 (7x7 mm) - same | LQFP-48 (7x7 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Flash Memory | 192 KB | 192 KB | 192 KB | 192 KB | 192 KB | 192 KB |
| SRAM | 20 KB | 20 KB | 20 KB | 20 KB | 20 KB | 20 KB |
| USB Peripheral | Yes (crystal-less USB 2.0 FS) | Yes | Yes | Yes | No | Yes |
| AES-128 Hardware | Yes | Yes | Yes | Yes | Yes | Yes |
| Wireless Connectivity | None | Sigfox | None | None | None | LoRa |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Supply Voltage | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.65 V to 3.6 V |
Ключевые отличия
- Crystal-less USB 2.0 full-speed peripheral (против STM32L053CZT6)
- Optional wireless connectivity without PCB rework (против STM32L073CZT6)
- 192 KB Flash headroom for USB stacks (против STM32L052C8T6)
Заметки по проектированию
Estimated: at 32 MHz active core current with peripherals disabled the STM32L072CZT6 draws around 1 mA/MHz per ST datasheet figures. Add 100 nF + 10 uF ceramic decoupling near each VDD/VDDA pin and a ferrite bead between digital and analog supplies for clean ADC readings. Use the integrated voltage regulator to drive VDD from a 1.8 V to 3.3 V rail and avoid supplying core voltage externally.
At low duty cycles the STM32L072CZT6 spends nearly all its time in Stop or Standby, so self-heating is negligible. For continuous-active designs at 32 MHz, the LQFP-48 theta_JA around 65 C/W produces only a few degrees of rise even without a copper pour. Still place thermal vias under the exposed pad if your PCB stackup supports it.
Route the USB DP/DM pair (PA11/PA12) as a 90 ohm differential with length matching within 150 mils and keep them away from switching nodes. The crystal-less USB relies on internal trimming, so a clean 3.3 V rail with low ripple is essential. Per ST AN4879, place the USB common-mode choke near the connector side of the route.
Do not exceed 3.6 V on any pin including 5 V-tolerant GPIOs. Make sure BOOT0 is tied low for normal Flash boot and pulled high only for system memory bootloader access. Disable unused peripherals in PWR register settings before entering Stop mode to achieve sub-microamp current per the ST reference manual RM03510.
Информация о соответствии
RoHS and REACH compliance per ST product page. Not AEC-Q100 qualified - this is a commercial/consumer part. For automotive applications use the equivalent -A or -Q suffix variant if available.
