Overview
The STM32L073RBT6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L073xx family. It integrates the high-performance 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 enhanced I/Os and peripherals. It includes high-speed embedded memories, extensive analog features, and advanced communication interfaces, making it suitable for a variety of low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| Operating Frequency | Up to 32 MHz |
| Flash Memory | Up to 192 Kbytes with ECC (2 banks with read-while-write capability) |
| RAM | 20 Kbytes |
| EEPROM | 6 Kbytes with ECC |
| Backup Register | 20 bytes |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 to 125 °C |
| Low-Power Modes | Standby: 0.29 µA, Stop: 0.43 µA, 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 with output buffers |
| Comparators | 2 ultra-low-power comparators with 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 64 10x10x1.4 mm |
Key Features
- Ultra-low-power platform with advanced power-saving modes
- High-performance Arm Cortex-M0+ 32-bit RISC core
- High-speed embedded memories: up to 192 Kbytes Flash, 20 Kbytes RAM, 6 Kbytes EEPROM
- Extensive analog features: 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
- LCD controller with built-in LCD voltage generator
- Ultra-safe, low-power BOR and POR/PDR
- Programmable voltage detector (PVD)
- Multiple clock sources including crystal oscillators and internal RC oscillators
- Pre-programmed bootloader and serial wire debug support
- True RNG and firewall protection
- All packages are ECOPACK2 compliant
Applications
- Low-power IoT devices
- Wearable electronics
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Consumer electronics such as smart home devices and remote controls
- Automotive systems requiring low power and high reliability
Q & A
- What is the core architecture of the STM32L073RBT6TR?
The core architecture is based on the Arm 32-bit Cortex-M0+ with a Memory Protection Unit (MPU).
- What is the operating frequency range of the STM32L073RBT6TR?
The operating frequency range is up to 32 MHz.
- What are the power supply and temperature range specifications?
The power supply range is 1.65 V to 3.6 V, and the temperature range is -40 to 125 °C.
- What are the low-power modes and their respective current consumptions?
The low-power modes include Standby (0.29 µA), Stop (0.43 µA), and Stop + RTC + RAM retention (0.86 µA).
- What is the wakeup time from Flash memory?
The wakeup time from Flash memory is 5 µs.
- What are the key analog peripherals included in the STM32L073RBT6TR?
The key analog peripherals include a 12-bit ADC, 2 x 12-bit DACs, and 2 ultra-low-power comparators.
- How many capacitive sensing channels does the STM32L073RBT6TR support?
The STM32L073RBT6TR supports up to 24 capacitive sensing channels.
- What communication interfaces are available on the STM32L073RBT6TR?
The available communication interfaces include USB 2.0 crystal-less, multiple USARTs, SPIs, and I2Cs.
- What is the package type of the STM32L073RBT6TR?
The package type is LQFP 64 10x10x1.4 mm.
- Does the STM32L073RBT6TR support LCD control?
Yes, it includes an LCD controller with a built-in LCD voltage generator.
- What safety features are included in the STM32L073RBT6TR?
The safety features include ultra-safe, low-power BOR and POR/PDR, and a programmable voltage detector (PVD).
