STM32L073VZT6 - 192KB Flash, 32MHz ARM Cortex-M0+ MCU | STMicroelectronics
MPN: STM32L073VZT6 ✓ NakahandaSTM32L073VZT6 Ulas
What is an ARM Cortex-M0+ microcontroller? It is a 32-bit processor core designed for low-power and cost-sensitive embedded applications. The Cortex-M0+ is the smallest and most energy-efficient ARM processor, offering a balance between performance and power consumption. In the system hierarchy, it sits above 8-bit microcontrollers (like AVR or PIC) but below higher-performance Cortex-M3/M4 cores. It is widely used in IoT devices, sensor nodes, and portable electronics where long battery life is critical.
Key features of the STM32L073VZT6 include an ultra-low-power mode with 0.29uA standby current, a 12-bit ADC with hardware oversampling, multiple communication interfaces (USART, SPI, I2C, USB 2.0 full-speed), and a real-time clock with calendar. It also integrates an LCD driver supporting up to 8x40 segments, making it suitable for display applications. The device operates from 1.8V to 3.6V, with a wide temperature range of -40C to +85C.
Technically, the STM32L073VZT6 is built on a 40nm process technology, enabling its low power consumption. It features a flexible clock system with an internal 16MHz RC oscillator and an external crystal oscillator up to 32MHz. The microcontroller includes a memory protection unit (MPU) and a single-cycle multiply instruction, enhancing its computational efficiency. The 12-bit ADC can achieve up to 1.14 Msps with hardware oversampling, providing high-resolution analog measurements.
Typical applications include smart meters, industrial sensors, portable medical devices, and IoT endpoints. Its ultra-low-power modes and rich peripheral set make it ideal for battery-operated systems that require long operational life. For example, in a smart meter, the STM32L073VZT6 can handle metering calculations, display updates, and wireless communication while maintaining low average power consumption.
When designing with this device, pay attention to the power supply decoupling: place a 100nF capacitor close to each VDD pin and a 4.7uF capacitor on the main supply. Also, configure the clock system carefully to balance performance and power consumption, using the low-speed external oscillator for RTC and the high-speed internal RC for fast wake-up.
Mga alternatibo na pwedeng ilagay na STM32L073VZT6 — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok STM32L073VZT6 (parehas na form factor at footprint) — pagkakaiba sa Package, Flash Memory, Communication Interfaces, Supply Voltage.
STM32L073VBT6
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
STM32L073VCT6
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
STM32L071VZT6
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →STM32L072VZT6
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →STM32L073VZT6 Mga Pinakamataas na Rating at Electrical Characteristics
| Core | ARM Cortex-M0+ |
| Maximum Frequency | 32 MHz |
| Flash Memory | 192 KB |
| RAM | 20 KB |
| Packhaging | LQFP-100 (14x14 mm) |
| Volte ng Pagbibigay | 1.8 V to 3.6 V |
| Temperature na Operasyon | -40C to +85C |
| Standby Current | 0.29 uA |
| ADC Resolution | 12-bit |
| ADC Sampling Rate | 1.14 Msps |
| Communication Interfaces | USART, SPI, I2C, USB 2.0 Full-Speed |
| LCD Driver | Up to 8x40 segments |
| Real-Time Clock | Yes (with calendar) |
| Process Technology | 40 nm |
| Tindminan RoHS | Compliant |
Pin Configuration ng STM32L073VZT6
| Pin 1 | VDD — Power supply |
| Pin 2 | VSS — Ground |
| Pin 3 | PA0 — GPIO / ADC input |
| Pin 4 | PA1 — GPIO / ADC input |
| Pin 5 | PA2 — GPIO / USART2_TX |
| Pin 6 | PA3 — GPIO / USART2_RX |
| Pin 7 | PA4 — GPIO / SPI1_NSS |
| Pin 8 | PA5 — GPIO / SPI1_SCK |
| Pin 9 | PA6 — GPIO / SPI1_MISO |
| Pin 10 | PA7 — GPIO / SPI1_MOSI |
| Pin 11 | PB0 — GPIO / ADC input |
| Pin 12 | PB1 — GPIO / ADC input |
| Pin 13 | PB2 — GPIO / BOOT1 |
| Pin 14 | PB3 — GPIO / SWO |
| Pin 15 | PB4 — GPIO / NJTRST |
| Pin 16 | PB5 — GPIO / I2C1_SMBA |
| Pin 17 | PB6 — GPIO / I2C1_SCL |
| Pin 18 | PB7 — GPIO / I2C1_SDA |
| Pin 19 | PB8 — GPIO / I2C1_SCL |
| Pin 20 | PB9 — GPIO / I2C1_SDA |
Tipikal na mga Gamit
STM32L073VZT6 ay nararapat para sa 6 aplikasyons: Smart Meters, Industrial Sensors, Portable Medical Devices, IoT Endpoints, Smart Home Devices, Wearable Devices.
Smart Meters
The STM32L073VZT6 is ideal for smart meters due to its integrated LCD driver, ultra-low-power modes, and multiple communication interfaces. It can handle metering calculations, display updates, and wireless communication while maintaining low average power consumption. The 12-bit ADC with hardware oversampling ensures accurate measurement of voltage and current. The device's 0.29 uA standby current extends battery life, and the 32 MHz Cortex-M0+ core provides sufficient processing power for real-time metering algorithms. The LCD driver supports up to 8x40 segments, enabling a clear display of consumption data. Communication interfaces like USART and SPI allow integration with PLC or RF modules for remote data collection. The wide operating voltage range (1.8V to 3.6V) accommodates various power supply designs, including battery and energy harvesting. Overall, the STM32L073VZT6 provides a cost-effective, energy-efficient solution for smart metering applications.
Inirekomenda
Industrial Sensors
The STM32L073VZT6 is well-suited for industrial sensors that require low power consumption and reliable operation in harsh environments. Its 12-bit ADC with hardware oversampling enables precise measurement of analog signals from temperature, pressure, or flow sensors. The device's multiple USART, SPI, and I2C interfaces allow easy connection to external sensors and actuators. The ultra-low-power modes, including a 0.29 uA standby current, are critical for battery-powered or energy-harvesting sensor nodes. The wide operating temperature range (-40C to +85C) ensures reliable operation in industrial settings. The Cortex-M0+ core provides efficient processing for sensor data fusion and communication protocols. The integrated LCD driver can be used for local display of sensor readings, reducing the need for external display components. Overall, the STM32L073VZT6 offers a compact, low-power solution for industrial sensor applications.
Inirekomenda
Portable Medical Devices
The STM32L073VZT6 is an excellent choice for portable medical devices such as glucose meters, pulse oximeters, and wearable health monitors. Its ultra-low-power consumption, with a 0.29 uA standby current, extends battery life, which is crucial for devices that need to operate for months on a single charge. The 12-bit ADC with hardware oversampling provides high-resolution measurements for biosignals. The device's small footprint and rich peripheral set, including USB 2.0 Full-Speed, enable data transfer to a host for analysis. The LCD driver can be used to display vital signs directly on the device. The Cortex-M0+ core is efficient enough to run signal processing algorithms while maintaining low power. The wide operating voltage range (1.8V to 3.6V) allows direct battery operation. Overall, the STM32L073VZT6 provides a reliable, low-power platform for portable medical applications.
Inirekomenda
IoT Endpoints
The STM32L073VZT6 is a popular choice for IoT endpoints due to its ultra-low-power modes and rich connectivity options. It can operate for years on a single battery, making it ideal for wireless sensor nodes, smart home devices, and asset trackers. The device supports multiple communication interfaces, including USART, SPI, I2C, and USB, allowing easy integration with Wi-Fi, Bluetooth, or LoRa modules. The 32 MHz Cortex-M0+ core provides sufficient processing power for edge computing tasks, such as data filtering and protocol handling. The 12-bit ADC enables analog sensor interfacing, while the LCD driver can be used for local displays. The device's low standby current (0.29 uA) ensures minimal power draw during idle periods. The wide operating voltage range (1.8V to 3.6V) accommodates various battery configurations. Overall, the STM32L073VZT6 is a versatile, energy-efficient MCU for IoT endpoint applications.
Inirekomenda
Smart Home Devices
The STM32L073VZT6 is well-suited for smart home devices such as thermostats, smart locks, and lighting controls. Its ultra-low-power consumption ensures long battery life for battery-powered devices, while its rich peripheral set enables connectivity with sensors and actuators. The integrated LCD driver can be used for user interfaces, and the multiple communication interfaces allow integration with home automation protocols like Zigbee or Z-Wave via external modules. The 12-bit ADC with hardware oversampling provides accurate analog measurements for temperature or light sensors. The Cortex-M0+ core is efficient enough to handle control algorithms and communication stacks. The device's wide operating voltage range (1.8V to 3.6V) supports various power supply designs. Overall, the STM32L073VZT6 offers a low-power, feature-rich solution for smart home applications.
Inirekomenda
Wearable Devices
The STM32L073VZT6 is an ideal MCU for wearable devices like fitness trackers and smartwatches due to its ultra-low-power consumption and small form factor. The 0.29 uA standby current extends battery life, which is critical for wearables that need to last days or weeks on a small battery. The 12-bit ADC with hardware oversampling enables accurate measurement of biometric signals, such as heart rate or skin conductance. The device's multiple communication interfaces, including USB and I2C, allow connection to sensors and wireless modules. The LCD driver can be used for a simple display, and the Cortex-M0+ core is efficient enough to run real-time algorithms. The wide operating voltage range (1.8V to 3.6V) supports coin cell batteries. Overall, the STM32L073VZT6 provides a low-power, compact solution for wearable applications.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for STM32L073VZT6 — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | STM32L073VBT6 | STM32L073VCT6 | STM32L071VZT6 | STM32L072VZT6 | LPC845 |
|---|---|---|---|---|---|---|
| Package | LQFP-100 | LQFP-100 | LQFP-100 | LQFP-100 | LQFP-100 | LQFP-48 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors |
| Flash Memory | 192 KB | 128 KB | 256 KB | 192 KB | 192 KB | 64 KB |
| RAM | 20 KB | 20 KB | 20 KB | 20 KB | 20 KB | 16 KB |
| Maximum Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 30 MHz |
| Standby Current | 0.29 uA | 0.29 uA | 0.29 uA | 0.29 uA | 0.29 uA | 0.5 uA |
| USB Interface | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | No | Yes (Full-Speed) | No |
| LCD Driver | Yes (8x40) | Yes (8x40) | Yes (8x40) | No | No | No |
Pangunahing mga Pagkakaiba
- Integrated LCD driver supporting up to 8x40 segments (kumpara saSTM32L072VZT6)
- USB 2.0 Full-Speed interface (kumpara saSTM32L071VZT6)
- 192 KB Flash memory (kumpara saSTM32L073VBT6)
Talaan ng Disenyo
For ultra-low-power operation, use the device's low-power modes (Sleep, Stop, Standby) appropriately. In Standby mode, the current is only 0.29 uA, but all SRAM contents are lost. Use the RTC to wake the device periodically. Ensure the power supply is stable and decoupled with a 100nF capacitor near each VDD pin and a 4.7uF bulk capacitor on the main supply.
Place decoupling capacitors as close as possible to the VDD and VSS pins to minimize noise and ensure stable operation. For the LQFP-100 package, use a 100nF ceramic capacitor for each VDD pin and a 4.7uF tantalum or ceramic capacitor for the main supply. Also, provide a solid ground plane to reduce EMI and improve signal integrity.
When using the internal RC oscillator, be aware of its accuracy (typically +/-1% after calibration). For applications requiring precise timing, use an external crystal. Also, ensure the BOOT0 pin is configured correctly to avoid accidental bootloader entry. Finally, do not exceed the absolute maximum ratings for VDD (3.6V) to prevent damage.
Impormasyon ng Pagsunod sa Kautusan
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified - this is a general-purpose MCU, not automotive-grade.
