STM32L072VZT6 - Ultra-Low-Power ARM Cortex-M0+ MCU | STMicroelectronics
MPN: STM32L072VZT6 ✓ Hoạt độngSTM32L072VZT6 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho STM32L072VZT6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32L072VZT6 (cùng hình factor và footprint) — khác nhau ở Package, Flash Memory, Communication Interfaces, Supply Voltage.
STM32L073VZT6
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM32L072VCT6
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32L071VZT6
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM32L082VZT6
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32L072VZT6 Tỷ lệ tối đa & tính chất điện
| 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 |
| Hộp | 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 |
| Nhiệt độ hoạt động | -40C to +85C |
| Trạng thái RoHS | Compliant |
Cấu hình chân STM32L072VZT6
| Chân 1 | PE2 — GPIO or alternate function |
| Chân 2 | PE3 — GPIO or alternate function |
| Chân 3 | PE4 — GPIO or alternate function |
| Chân 4 | PE5 — GPIO or alternate function |
| Chân 5 | PE6 — GPIO or alternate function |
| Chân 6 | VBAT — Backup battery supply |
| Chân 7 | PC13 — GPIO or RTC output |
| Chân 8 | PC14 — GPIO or OSC32_IN |
| Chân 9 | PC15 — GPIO or OSC32_OUT |
| Chân 10 | PF0 — GPIO or OSC_IN |
| Chân 11 | PF1 — GPIO or OSC_OUT |
| Chân 12 | PF2 — GPIO |
| Chân 13 | VSSA — Analog ground |
| Chân 14 | VDDA — Analog power supply |
| Chân 15 | PA0 — GPIO or ADC input |
| Chân 16 | PA1 — GPIO or ADC input |
| Chân 17 | PA2 — GPIO or USART2_TX |
| Chân 18 | PA3 — GPIO or USART2_RX |
| Chân 19 | PA4 — GPIO or DAC_OUT1 |
| Chân 20 | PA5 — GPIO or DAC_OUT2 |
| Chân 21 | PA6 — GPIO or SPI1_MISO |
| Chân 22 | PA7 — GPIO or SPI1_MOSI |
| Chân 23 | PA8 — GPIO or USB_DP |
| Chân 24 | PA9 — GPIO or USB_DM |
| Chân 25 | PA10 — GPIO or USART1_RX |
| Chân 26 | PA11 — GPIO or USART1_TX |
| Chân 27 | PA12 — GPIO or SPI1_NSS |
| Chân 28 | PA13 — GPIO or SWDIO |
| Chân 29 | PA14 — GPIO or SWCLK |
| Chân 30 | PA15 — GPIO or JTDI |
| Chân 31 | VDD — Digital power supply |
| Chân 32 | VSS — Digital ground |
| Chân 33 | PB0 — GPIO or ADC input |
| Chân 34 | PB1 — GPIO or ADC input |
| Chân 35 | PB2 — GPIO or BOOT1 |
| Chân 36 | PB3 — GPIO or SPI1_SCK |
| Chân 37 | PB4 — GPIO or SPI1_MISO |
| Chân 38 | PB5 — GPIO or I2C1_SMBA |
| Chân 39 | PB6 — GPIO or I2C1_SCL |
| Chân 40 | PB7 — GPIO or I2C1_SDA |
| Chân 41 | PB8 — GPIO or I2C1_SCL |
| Chân 42 | PB9 — GPIO or I2C1_SDA |
| Chân 43 | PB10 — GPIO or I2C2_SCL |
| Chân 44 | PB11 — GPIO or I2C2_SDA |
| Chân 45 | PB12 — GPIO or SPI2_NSS |
| Chân 46 | PB13 — GPIO or SPI2_SCK |
| Chân 47 | PB14 — GPIO or SPI2_MISO |
| Chân 48 | PB15 — GPIO or SPI2_MOSI |
| Chân 49 | PC0 — GPIO or ADC input |
| Chân 50 | PC1 — GPIO or ADC input |
| Chân 51 | PC2 — GPIO or ADC input |
| Chân 52 | PC3 — GPIO or ADC input |
| Chân 53 | PC4 — GPIO or ADC input |
| Chân 54 | PC5 — GPIO or ADC input |
| Chân 55 | PC6 — GPIO or USART6_TX |
| Chân 56 | PC7 — GPIO or USART6_RX |
| Chân 57 | PC8 — GPIO or USART6_CK |
| Chân 58 | PC9 — GPIO or USART6_CTS |
| Chân 59 | PC10 — GPIO or USART4_TX |
| Chân 60 | PC11 — GPIO or USART4_RX |
| Chân 61 | PC12 — GPIO or USART5_TX |
| Chân 62 | PD0 — GPIO or OSC_IN |
| Chân 63 | PD1 — GPIO or OSC_OUT |
| Chân 64 | PD2 — GPIO or USART5_RX |
| Chân 65 | PD3 — GPIO or USART2_CTS |
| Chân 66 | PD4 — GPIO or USART2_RTS |
| Chân 67 | PD5 — GPIO or USART2_TX |
| Chân 68 | PD6 — GPIO or USART2_RX |
| Chân 69 | PD7 — GPIO or USART2_CK |
| Chân 70 | PD8 — GPIO or USART3_TX |
| Chân 71 | PD9 — GPIO or USART3_RX |
| Chân 72 | PD10 — GPIO or USART3_CK |
| Chân 73 | PD11 — GPIO or USART3_CTS |
| Chân 74 | PD12 — GPIO or USART3_RTS |
| Chân 75 | PD13 — GPIO |
| Chân 76 | PD14 — GPIO |
| Chân 77 | PD15 — GPIO |
| Chân 78 | VDD — Digital power supply |
| Chân 79 | VSS — Digital ground |
| Chân 80 | PE0 — GPIO |
| Chân 81 | PE1 — GPIO |
| Chân 82 | PE7 — GPIO |
| Chân 83 | PE8 — GPIO |
| Chân 84 | PE9 — GPIO |
| Chân 85 | PE10 — GPIO |
| Chân 86 | PE11 — GPIO |
| Chân 87 | PE12 — GPIO |
| Chân 88 | PE13 — GPIO |
| Chân 89 | PE14 — GPIO |
| Chân 90 | PE15 — GPIO |
| Chân 91 | PB8 — GPIO or I2C1_SCL |
| Chân 92 | PB9 — GPIO or I2C1_SDA |
| Chân 93 | VDD — Digital power supply |
| Chân 94 | VSS — Digital ground |
| Chân 95 | PD8 — GPIO or USART3_TX |
| Chân 96 | PD9 — GPIO or USART3_RX |
| Chân 97 | PD10 — GPIO or USART3_CK |
| Chân 98 | PD11 — GPIO or USART3_CTS |
| Chân 99 | PD12 — GPIO or USART3_RTS |
| Chân 100 | PD13 — GPIO |
Ứng dụng tiêu biểu
STM32L072VZT6 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32L072VZT6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Ultra-low power consumption with multiple low-power modes (vsSTM32L073VZT6)
- 192 KB Flash memory in a 100-pin package (vsSTM32L072VCT6)
- Integrated USB 2.0 full-speed device controller (vsSTM32L071VZT6)
Ghi chú thiết kế
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.
Thông tin tuân thủ
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified. Halogen-free status not specified in the provided data.
