Overview
The STM32L073CBT6 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 device is designed for high power efficiency and features a wide range of internal and external clock sources, internal voltage adaptation, and several low-power modes. The STM32L073CBT6 includes high-performance embedded memories, extensive I/Os, and peripherals, 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 |
| 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 + 20-Kbyte RAM retention: 0.86 µA |
| Wakeup Time | 5 µs from Flash memory |
| ADC Conversion | 41 µA at 10 ksps |
| I/Os | Up to 84 fast I/Os (78 I/Os 5V tolerant) |
| Communication Interfaces | USB 2.0 crystal-less, 4x USART, 1x LPUART, up to 6x SPI, 3x I2C, 1x I2S |
| Analog Peripherals | 12-bit ADC, 2x 12-bit DACs, 2x ultra-low-power comparators, up to 24 capacitive sensing channels |
| Timers | 11 timers including 2x 16-bit with up to 4 channels, 1x 16-bit ultra-low-power timer, 1x SysTick, 1x RTC |
Key Features
- Ultra-low-power platform with multiple power-saving modes.
- High-performance Arm Cortex-M0+ 32-bit RISC core.
- High-speed embedded memories: up to 192 Kbytes of Flash, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM.
- Extensive range of I/Os and peripherals, including up to 84 fast I/Os.
- Rich analog peripherals: 12-bit ADC, 2x 12-bit DACs, 2x ultra-low-power comparators, and up to 24 capacitive sensing channels.
- Advanced communication interfaces: USB 2.0 crystal-less, 4x USART, 1x LPUART, up to 6x SPI, 3x I2C, and 1x I2S.
- Integrated LCD controller with built-in LCD voltage generator.
- Ultra-safe, low-power BOR with 5 selectable thresholds and programmable voltage detector (PVD).
- True RNG and firewall protection.
- All packages are ECOPACK2 compliant.
Applications
The STM32L073CBT6 is suitable for a wide range of applications that require low power consumption and high performance. Some typical applications include:
- Smart meters (gas, water, electricity).
- Keyboard and mouse devices.
- Fitness and healthcare devices.
- Industrial automation and control systems.
- Consumer electronics requiring low power and high efficiency.
Q & A
- What is the core architecture of the STM32L073CBT6?
The core architecture is based on the Arm 32-bit Cortex-M0+ RISC core.
- What is the maximum operating frequency of the STM32L073CBT6?
The maximum operating frequency is up to 32 MHz.
- What are the power supply requirements for the STM32L073CBT6?
The device operates from a 1.65 V to 3.6 V power supply.
- What are the low-power modes available on the STM32L073CBT6?
The device features Standby, Stop, and Stop + RTC + 20-Kbyte RAM retention modes.
- What is the wakeup time from Flash memory?
The wakeup time from Flash memory is 5 µs.
- What analog peripherals are available on the STM32L073CBT6?
The device includes a 12-bit ADC, 2x 12-bit DACs, and 2x ultra-low-power comparators.
- How many communication interfaces does the STM32L073CBT6 support?
The device supports USB 2.0 crystal-less, 4x USART, 1x LPUART, up to 6x SPI, 3x I2C, and 1x I2S.
- What is the temperature range for the STM32L073CBT6?
The operating temperature range is -40 to +125 °C.
- Does the STM32L073CBT6 have an integrated LCD controller?
Yes, it includes an integrated LCD controller with a built-in LCD voltage generator.
- What kind of timers are available on the STM32L073CBT6?
The device features 11 timers, including 2x 16-bit with up to 4 channels, 1x 16-bit ultra-low-power timer, 1x SysTick, and 1x RTC.
