STM32L072VZT6 - Ultra-Low-Power ARM Cortex-M0+ MCU | STMicroelectronics
MPN: STM32L072VZT6 ✓ فعالSTM32L072VZT6 نمای کلی
What is an ARM Cortex-M0+ microcontroller? It is a 32-bit processor core designed for ultra-low-power and cost-sensitive embedded applications. The Cortex-M0+ is the smallest and most energy-efficient ARM processor, featuring a two-stage pipeline that reduces power consumption while maintaining deterministic interrupt handling. In the system hierarchy, the STM32L072VZT6 sits at the application processor level, managing sensors, actuators, and communication interfaces, while the Cortex-M0+ core executes user firmware. This category of microcontrollers is widely used in IoT nodes, wearable devices, and industrial sensors where battery life is critical.
Key features of the STM32L072VZT6 include multiple low-power modes (Sleep, Low-power Run, Low-power Sleep, Stop with RTC, Standby with RTC, and Shutdown), a 12-bit ADC with hardware oversampling, two 12-bit DACs, a USB 2.0 full-speed device controller, and multiple communication interfaces including I2C, SPI, USART, and LPUART. The device also integrates a real-time clock (RTC) with calendar and alarm functions, and a true random number generator (RNG) for security applications. The operating voltage range is 1.8V to 3.6V, with a typical power consumption of 84 uA/MHz in Run mode and 0.29 uA in Standby mode with RTC.
From a technical depth perspective, the STM32L072VZT6 is built on ST's ultra-low-power technology platform, which includes a flexible clock gating and power management scheme. The device features a 12-bit ADC with up to 16 external channels and a conversion rate of 1 Msps, along with a 12-bit DAC with output buffer. The USB controller supports battery charging detection and link power management, making it suitable for portable devices. The device also includes a hardware CRC calculation unit and a unique 96-bit ID for device identification.
Typical applications include smart meters, fitness trackers, medical monitoring devices, and industrial sensor nodes. The ultra-low-power modes and rich analog peripherals make it particularly well-suited for applications that require long battery life and precise analog measurements. For example, in a smart meter, the STM32L072VZT6 can read current and voltage sensors, compute energy consumption, and communicate via wireless modules while spending most of its time in low-power sleep modes.
When designing with this device, pay attention to the power supply decoupling: place a 100 nF capacitor close to each VDD pin and a 4.7 uF capacitor on the main VDD rail. For the VDDA analog supply, use a dedicated 1 uF capacitor and a ferrite bead to isolate digital noise. The VBAT pin should be connected to a backup battery or tied to VDD if not used. Also, ensure the BOOT0 pin is properly configured to select the desired boot mode.
جایگزین‌های drop-in برای STM32L072VZT6 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای STM32L072VZT6 (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Flash Memory, Communication Interfaces, Supply Voltage.
STM32L073VZT6
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←STM32L072VCT6
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
STM32L071VZT6
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←STM32L082VZT6
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
STM32L072VZT6 حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core | ARM Cortex-M0+ |
| Max Clock Frequency | 32 MHz |
| Flash Memory | 192 KB |
| SRAM | 20 KB |
| Operating Voltage | 1.8 V to 3.6 V |
| بسته‌بندی | LQFP100 (14x14 mm) |
| GPIO Pins | 84 |
| ADC | 12-bit, 16 channels, 1 Msps |
| DAC | 12-bit, 2 channels |
| Communication Interfaces | I2C, SPI, USART, LPUART, USB 2.0 FS |
| Timers | 8x 16-bit, 2x 32-bit |
| RTC | Yes, with calendar and alarm |
| Low-Power Modes | Sleep, Low-power Run, Low-power Sleep, Stop, Standby, Shutdown |
| Power Consumption (Run) | 84 uA/MHz |
| Power Consumption (Standby) | 0.29 uA with RTC |
| دمای کاری | -40C to +85C |
| وضعیت RoHS | Compliant |
پیکربندی پین STM32L072VZT6
| پین 1 | PE2 — GPIO or alternate function |
| پین 2 | PE3 — GPIO or alternate function |
| پین 3 | PE4 — GPIO or alternate function |
| پین 4 | PE5 — GPIO or alternate function |
| پین 5 | PE6 — GPIO or alternate function |
| پین 6 | VBAT — Backup battery supply |
| پین 7 | PC13 — GPIO or RTC output |
| پین 8 | PC14 — GPIO or OSC32_IN |
| پین 9 | PC15 — GPIO or OSC32_OUT |
| پین 10 | PF0 — GPIO or OSC_IN |
| پین 11 | PF1 — GPIO or OSC_OUT |
| پین 12 | PF2 — GPIO |
| پین 13 | VSSA — Analog ground |
| پین 14 | VDDA — Analog power supply |
| پین 15 | PA0 — GPIO or ADC input |
| پین 16 | PA1 — GPIO or ADC input |
| پین 17 | PA2 — GPIO or USART2_TX |
| پین 18 | PA3 — GPIO or USART2_RX |
| پین 19 | PA4 — GPIO or DAC_OUT1 |
| پین 20 | PA5 — GPIO or DAC_OUT2 |
| پین 21 | PA6 — GPIO or SPI1_MISO |
| پین 22 | PA7 — GPIO or SPI1_MOSI |
| پین 23 | PA8 — GPIO or USB_DP |
| پین 24 | PA9 — GPIO or USB_DM |
| پین 25 | PA10 — GPIO or USART1_RX |
| پین 26 | PA11 — GPIO or USART1_TX |
| پین 27 | PA12 — GPIO or SPI1_NSS |
| پین 28 | PA13 — GPIO or SWDIO |
| پین 29 | PA14 — GPIO or SWCLK |
| پین 30 | PA15 — GPIO or JTDI |
| پین 31 | VDD — Digital power supply |
| پین 32 | VSS — Digital ground |
| پین 33 | PB0 — GPIO or ADC input |
| پین 34 | PB1 — GPIO or ADC input |
| پین 35 | PB2 — GPIO or BOOT1 |
| پین 36 | PB3 — GPIO or SPI1_SCK |
| پین 37 | PB4 — GPIO or SPI1_MISO |
| پین 38 | PB5 — GPIO or I2C1_SMBA |
| پین 39 | PB6 — GPIO or I2C1_SCL |
| پین 40 | PB7 — GPIO or I2C1_SDA |
| پین 41 | PB8 — GPIO or I2C1_SCL |
| پین 42 | PB9 — GPIO or I2C1_SDA |
| پین 43 | PB10 — GPIO or I2C2_SCL |
| پین 44 | PB11 — GPIO or I2C2_SDA |
| پین 45 | PB12 — GPIO or SPI2_NSS |
| پین 46 | PB13 — GPIO or SPI2_SCK |
| پین 47 | PB14 — GPIO or SPI2_MISO |
| پین 48 | PB15 — GPIO or SPI2_MOSI |
| پین 49 | PC0 — GPIO or ADC input |
| پین 50 | PC1 — GPIO or ADC input |
| پین 51 | PC2 — GPIO or ADC input |
| پین 52 | PC3 — GPIO or ADC input |
| پین 53 | PC4 — GPIO or ADC input |
| پین 54 | PC5 — GPIO or ADC input |
| پین 55 | PC6 — GPIO or USART6_TX |
| پین 56 | PC7 — GPIO or USART6_RX |
| پین 57 | PC8 — GPIO or USART6_CK |
| پین 58 | PC9 — GPIO or USART6_CTS |
| پین 59 | PC10 — GPIO or USART4_TX |
| پین 60 | PC11 — GPIO or USART4_RX |
| پین 61 | PC12 — GPIO or USART5_TX |
| پین 62 | PD0 — GPIO or OSC_IN |
| پین 63 | PD1 — GPIO or OSC_OUT |
| پین 64 | PD2 — GPIO or USART5_RX |
| پین 65 | PD3 — GPIO or USART2_CTS |
| پین 66 | PD4 — GPIO or USART2_RTS |
| پین 67 | PD5 — GPIO or USART2_TX |
| پین 68 | PD6 — GPIO or USART2_RX |
| پین 69 | PD7 — GPIO or USART2_CK |
| پین 70 | PD8 — GPIO or USART3_TX |
| پین 71 | PD9 — GPIO or USART3_RX |
| پین 72 | PD10 — GPIO or USART3_CK |
| پین 73 | PD11 — GPIO or USART3_CTS |
| پین 74 | PD12 — GPIO or USART3_RTS |
| پین 75 | PD13 — GPIO |
| پین 76 | PD14 — GPIO |
| پین 77 | PD15 — GPIO |
| پین 78 | VDD — Digital power supply |
| پین 79 | VSS — Digital ground |
| پین 80 | PE0 — GPIO |
| پین 81 | PE1 — GPIO |
| پین 82 | PE7 — GPIO |
| پین 83 | PE8 — GPIO |
| پین 84 | PE9 — GPIO |
| پین 85 | PE10 — GPIO |
| پین 86 | PE11 — GPIO |
| پین 87 | PE12 — GPIO |
| پین 88 | PE13 — GPIO |
| پین 89 | PE14 — GPIO |
| پین 90 | PE15 — GPIO |
| پین 91 | PB8 — GPIO or I2C1_SCL |
| پین 92 | PB9 — GPIO or I2C1_SDA |
| پین 93 | VDD — Digital power supply |
| پین 94 | VSS — Digital ground |
| پین 95 | PD8 — GPIO or USART3_TX |
| پین 96 | PD9 — GPIO or USART3_RX |
| پین 97 | PD10 — GPIO or USART3_CK |
| پین 98 | PD11 — GPIO or USART3_CTS |
| پین 99 | PD12 — GPIO or USART3_RTS |
| پین 100 | PD13 — GPIO |
کاربردهای معمول
STM32L072VZT6 مناسب است برای 6 کاربردs: Smart Meters, Wearable Fitness Trackers, Industrial Sensor Nodes, Medical Monitoring Devices, IoT Smart Home Devices, Portable Test and Measurement Equipment.
Smart Meters
The STM32L072VZT6 is ideal for smart meters due to its ultra-low-power operation and integrated analog peripherals. In a typical smart meter, the MCU reads current and voltage sensors via the 12-bit ADC, computes energy consumption, and communicates via a wireless module. The low-power modes allow the device to sleep between measurements, extending battery life to several years. The 192 KB Flash provides ample space for calibration data and communication protocols. The RTC ensures accurate time-stamping of energy usage. The USB interface can be used for local configuration and firmware updates. The wide operating voltage range (1.8V to 3.6V) accommodates battery voltage variations. The device's robust temperature range (-40C to +85C) suits outdoor installations. The multiple communication interfaces (I2C, SPI, USART) connect to various sensors and displays. The 12-bit DAC can generate analog outputs for testing or control. The low-power run mode allows continuous operation at reduced clock speeds, further saving energy. The STM32L072VZT6's combination of low power, rich peripherals, and large memory makes it a cost-effective choice for smart metering applications.
پیشنهادی
Wearable Fitness Trackers
The STM32L072VZT6 is well-suited for wearable fitness trackers due to its ultra-low-power consumption and small footprint. In a fitness tracker, the MCU interfaces with an accelerometer and heart rate sensor via I2C or SPI, processes the data, and displays it on an OLED or LED display. The device spends most of its time in Stop mode, waking periodically to sample sensors and update the display. The 20 KB SRAM is sufficient for sensor data buffering. The USB interface enables charging and data transfer. The low-power modes ensure a battery life of several weeks on a small coin cell. The 12-bit ADC can monitor battery voltage. The RTC provides time and date for activity logging. The multiple timers can generate PWM signals for haptic feedback. The device's small LQFP100 package fits into compact wearable designs. The wide operating voltage range allows direct battery connection. The STM32L072VZT6's low power and rich peripherals make it an excellent choice for wearable applications.
پیشنهادی
Industrial Sensor Nodes
The STM32L072VZT6 is perfect for industrial sensor nodes that monitor temperature, pressure, or humidity. In such a node, the MCU reads analog sensors via the 12-bit ADC, processes the data, and transmits it over a wireless protocol like LoRa or Zigbee. The low-power modes allow the node to run on batteries for years. The device's robust temperature range (-40C to +85C) suits harsh industrial environments. The multiple communication interfaces connect to various sensors and actuators. The 192 KB Flash stores firmware and calibration data. The 12-bit DAC can generate analog control signals. The RTC enables scheduled wake-ups for periodic reporting. The device's low power consumption in Run mode (84 uA/MHz) is critical for energy efficiency. The STM32L072VZT6's combination of low power, analog peripherals, and communication options makes it ideal for industrial IoT applications.
پیشنهادی
Medical Monitoring Devices
The STM32L072VZT6 is suitable for medical monitoring devices such as portable glucose meters or pulse oximeters. These devices require low power consumption for battery operation and precise analog measurements. The MCU's 12-bit ADC with hardware oversampling provides accurate sensor readings. The low-power modes extend battery life, which is critical for patient convenience. The USB interface allows data transfer to a PC or smartphone. The device's small package fits into handheld designs. The 192 KB Flash stores patient data and firmware. The RTC provides timestamps for measurements. The multiple timers can generate alarms. The device's wide operating voltage range accommodates battery voltage variations. The STM32L072VZT6's low power and analog performance make it an excellent choice for medical monitoring applications.
پیشنهادی
IoT Smart Home Devices
The STM32L072VZT6 is ideal for smart home devices like smart thermostats, door locks, and environmental sensors. These devices require low power consumption, wireless connectivity, and reliable operation. The MCU's multiple communication interfaces (I2C, SPI, USART) connect to Wi-Fi or Zigbee modules. The low-power modes allow battery operation for extended periods. The 12-bit ADC reads temperature and humidity sensors. The RTC enables scheduled events. The device's small package fits into compact enclosures. The 192 KB Flash stores firmware and user settings. The USB interface can be used for configuration. The STM32L072VZT6's combination of low power, connectivity, and memory makes it a popular choice for smart home applications.
پیشنهادی
Portable Test and Measurement Equipment
The STM32L072VZT6 is well-suited for portable test and measurement equipment such as handheld multimeters or data loggers. These devices require high accuracy, low power, and a user interface. The MCU's 12-bit ADC with oversampling provides precise measurements. The low-power modes extend battery life. The multiple timers can generate PWM for waveform generation. The USB interface allows data transfer to a PC. The device's small package fits into handheld designs. The 192 KB Flash stores measurement data and firmware. The RTC provides time-stamping. The STM32L072VZT6's combination of analog performance, low power, and memory makes it an excellent choice for portable test equipment.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای STM32L072VZT6 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | STM32L073VZT6 | STM32L072VCT6 | STM32L071VZT6 | STM32L082VZT6 |
|---|---|---|---|---|---|
| Package | LQFP100 | LQFP100 | LQFP100 | LQFP100 | LQFP100 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Max Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 192 KB | 192 KB | 128 KB | 192 KB | 192 KB |
| SRAM | 20 KB | 20 KB | 20 KB | 20 KB | 20 KB |
| USB | Yes | Yes | Yes | No | Yes |
| LCD Controller | No | Yes | No | No | No |
| AES Encryption | No | No | No | No | Yes |
تفاوت‌های کلیدی
- Ultra-low power consumption with multiple low-power modes (در مقابلSTM32L073VZT6)
- 192 KB Flash memory in a 100-pin package (در مقابلSTM32L072VCT6)
- Integrated USB 2.0 full-speed device controller (در مقابلSTM32L071VZT6)
یادداشت‌های طراحی
Decouple each VDD pin with a 100 nF ceramic capacitor placed as close as possible to the pin. Additionally, place a 4.7 uF capacitor on the main VDD rail. For VDDA, use a dedicated 1 uF capacitor and a ferrite bead to isolate analog noise. If VBAT is not used, connect it to VDD. Ensure the power supply can handle the peak current during flash programming or USB activity.
For the LQFP100 package, use a 4-layer PCB with a solid ground plane. Route high-speed signals (USB, SPI) with controlled impedance if possible. Keep analog and digital grounds separate and connect them at a single point. Place the crystal oscillator close to the OSC_IN/OSC_OUT pins and ensure proper load capacitors. Avoid routing high-current traces near the analog input pins.
Ensure the BOOT0 pin is correctly configured to select the desired boot mode. If using the USB, ensure the USB_DP and USB_DM pins are properly terminated with 22 ohm resistors. Do not exceed the absolute maximum ratings for VDD (3.6V) and VDDA. When using the ADC, ensure the sampling time is sufficient for the source impedance. Also, note that the STM32L072VZT6 does not have a built-in LCD controller, so an external driver is needed if an LCD is required.
اطلاعات انطباق
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified. Halogen-free status not specified in the provided data.
