Overview
The STM32L073VBT6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L0 series. It integrates the Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. This MCU is designed for high power efficiency and features a wide range of peripherals and interfaces. It includes high-speed embedded memories, extensive I/Os, and advanced communication interfaces, making it suitable for a variety of low-power applications.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| Frequency | Up to 32 MHz |
| Flash Memory | Up to 192 Kbytes with ECC (2 banks with read-while-write capability) |
| RAM | 20 Kbytes |
| Data EEPROM | 6 Kbytes with ECC |
| Backup Register | 20 bytes |
| Power Supply | 1.65 V to 3.6 V (down to 1.65 V at power down) |
| Temperature Range | -40 to +125 °C |
| Low-Power Modes | Standby: 0.29 µA (3 wakeup pins), Stop: 0.43 µA (16 wakeup lines), Stop + RTC + RAM retention: 0.86 µA |
| Wakeup Time | 5 µs from Flash memory |
| ADC | 12-bit, 1.14 Msps, up to 16 channels |
| DACs | 2 x 12-bit channel DACs with output buffers |
| Comparators | 2 ultra-low-power comparators (window mode and wake up capability) |
| Capacitive Sensing Channels | Up to 24 channels supporting touchkey, linear, and rotary touch sensors |
| Communication Interfaces | USB 2.0 crystal-less, 4x USART, 1x UART (low power), up to 6x SPI, 3x I2C |
| Timers | 11 timers including 16-bit, ultra-low-power timer, SysTick, RTC, and watchdogs |
| Package | LQFP 100 14x14x1.4 mm |
Key Features
- Ultra-low-power platform with multiple low-power modes (Standby, Stop, etc.)
- High-performance Arm Cortex-M0+ core with MPU
- High-speed embedded memories: up to 192 Kbytes of Flash, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM
- Rich analog peripherals: 12-bit ADC, 2 x 12-bit DACs, ultra-low-power comparators
- Advanced communication interfaces: USB 2.0 crystal-less, multiple USARTs, SPIs, I2Cs
- Up to 24 capacitive sensing channels for touch sensing
- Integrated LCD controller with built-in LCD voltage generator
- Multiple clock sources and a pre-programmed bootloader
- Serial wire debug supported and development tools available
- All packages are ECOPACK2 compliant
Applications
- Gas and water meters
- Keyboard and mouse devices
- Fitness and healthcare devices
- Low-power IoT devices
- Industrial automation and control systems
- Consumer electronics requiring low power consumption
Q & A
- What is the core architecture of the STM32L073VBT6?
The core architecture is based on the Arm 32-bit Cortex-M0+ with a Memory Protection Unit (MPU).
- What is the maximum frequency of the STM32L073VBT6?
The maximum frequency is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L073VBT6?
The power supply voltage ranges from 1.65 V to 3.6 V (down to 1.65 V at power down).
- What are the low-power modes available on the STM32L073VBT6?
The available low-power modes include Standby, Stop, and Stop with RTC and RAM retention.
- How many capacitive sensing channels does the STM32L073VBT6 support?
It supports up to 24 capacitive sensing channels.
- What communication interfaces are available on the STM32L073VBT6?
The available interfaces include USB 2.0 crystal-less, multiple USARTs, SPIs, and I2Cs.
- Does the STM32L073VBT6 have an integrated LCD controller?
Yes, it has an integrated LCD controller with a built-in LCD voltage generator.
- What is the typical current consumption in Run mode for the STM32L073VBT6?
The typical current consumption in Run mode is down to 93 µA/MHz.
- How many timers are available on the STM32L073VBT6?
There are 11 timers, including 16-bit timers, an ultra-low-power timer, SysTick, RTC, and watchdogs.
- Is the STM32L073VBT6 RoHS compliant?
Yes, the STM32L073VBT6 is RoHS compliant and comes in ECOPACK2 packages.
