Overview
The STM32L053R6T6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L0 series. It features the high-performance Arm® 32-bit Cortex®-M0+ core, operating at a maximum frequency of 32 MHz. This MCU is designed for applications requiring high power efficiency and advanced peripherals. It includes a memory protection unit (MPU), high-speed embedded memories, and a wide range of enhanced I/Os and peripherals. The device supports various low-power modes and offers a comprehensive set of power-saving features, making it ideal for battery-powered devices and other low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M0+ with MPU |
| Frequency | Up to 32 MHz |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 to 125 °C |
| Flash Memory | Up to 64 KB with ECC |
| RAM | 8 KB |
| EEPROM | 2 KB with ECC |
| Backup Register | 20 bytes |
| I/Os | Up to 51 fast I/Os (45 I/Os 5V tolerant) |
| Low-Power Modes | Standby: 0.27 μA, Stop: 0.4 μA, Stop + RTC + RAM retention: 0.8 μA |
| Wakeup Time | 3.5 μs from RAM, 5 μs from Flash memory |
| Clock Sources | 1 to 25 MHz crystal oscillator, 32 kHz oscillator for RTC, internal RC oscillators |
| Communication Interfaces | USB 2.0 crystal-less, 2x USART, 1x UART (low power), up to 4x SPI, 2x I2C |
| Analog Peripherals | 12-bit ADC, 12-bit DAC, 2x ultra-low-power comparators, up to 24 capacitive sensing channels |
| Timers | 9 timers including general-purpose timers, low-power timer, SysTick, RTC, and watchdogs |
| Package | LQFP 64 10x10x1.4 mm, TFBGA 64 5x5x1.2 mm |
Key Features
- Ultra-low-power platform with multiple power-saving modes
- High-performance Arm® 32-bit Cortex®-M0+ core with MPU
- High-speed embedded memories: up to 64 KB Flash, 8 KB RAM, 2 KB EEPROM
- Extensive range of enhanced I/Os and peripherals
- Advanced communication interfaces: USB 2.0 crystal-less, USART, UART, SPI, I2C
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, ultra-low-power comparators, capacitive sensing channels
- Multiple timers: general-purpose timers, low-power timer, SysTick, RTC, watchdogs
- LCD driver for up to 8×28 segments with contrast adjustment and blinking mode
- 7-channel DMA controller supporting various peripherals
- True RNG and firewall protection
- All packages are ECOPACK2 compliant
Applications
- Battery-powered devices and IoT applications requiring low power consumption
- Industrial control and automation systems
- Medical devices and healthcare equipment
- Consumer electronics such as smart home devices and wearables
- Automotive systems, especially those requiring low power and high reliability
- Sensor networks and data logging devices
Q & A
- What is the core architecture of the STM32L053R6T6?
The STM32L053R6T6 features the Arm® 32-bit Cortex®-M0+ core with a memory protection unit (MPU).
- What is the power supply range for the STM32L053R6T6?
The power supply range is from 1.65 V to 3.6 V.
- What are the low-power modes available on the STM32L053R6T6?
The device supports Standby, Stop, and Stop + RTC + RAM retention modes, with current consumptions of 0.27 μA, 0.4 μA, and 0.8 μA respectively.
- What are the key analog peripherals of the STM32L053R6T6?
The device includes a 12-bit ADC, a 12-bit DAC, two ultra-low-power comparators, and up to 24 capacitive sensing channels.
- What communication interfaces are available on the STM32L053R6T6?
The device features USB 2.0 crystal-less, two USARTs, one low-power UART, up to four SPI interfaces, and two I2C interfaces.
- What is the maximum frequency of the STM32L053R6T6?
The maximum frequency is 32 MHz.
- What is the temperature range for the STM32L053R6T6?
The operating temperature range is from -40 to 125 °C.
- What types of timers are available on the STM32L053R6T6?
The device includes general-purpose timers, a low-power timer, SysTick, RTC, and two watchdogs.
- Does the STM32L053R6T6 support LCD driving?
Yes, it includes an LCD driver for up to 8×28 segments with contrast adjustment and blinking mode.
- What is the DMA capability of the STM32L053R6T6?
The device features a 7-channel DMA controller supporting ADC, SPI, I2C, USART, DAC, and timers.
