Overview
The STM32L053R8T7 is an ultra-low-power microcontroller from STMicroelectronics, based on the Arm Cortex-M0+ 32-bit RISC core. This MCU is designed to provide high performance and low power consumption, making it suitable for a wide range of applications. It operates at a frequency of up to 32 MHz and features a comprehensive set of peripherals, including USB 2.0, LCD, ADC, DAC, and various communication interfaces. The device is part of the STM32L053x6/8 series, known for its power efficiency and extensive range of enhanced I/Os and peripherals.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Min | 1.65 V |
| Supply Voltage Max | 3.6 V |
| Operating Temperature Min | -40 °C |
| Operating Temperature Max | 105 °C |
| Core | Arm Cortex-M0+ |
| Flash Memory | Up to 64 KB |
| RAM | 8 KB |
| EEPROM | 2 KB |
| Package | LQFP 64 10x10x1.4 mm |
| RoHS Compliance | Ecopack2 |
| Grade | Industrial |
Key Features
- Ultra-low-power platform with multiple low-power modes (Standby, Stop, and Sleep modes)
- Arm Cortex-M0+ 32-bit RISC core operating at up to 32 MHz
- Up to 64 KB of Flash memory, 8 KB of RAM, and 2 KB of data EEPROM
- 12-bit ADC with up to 16 channels and 1.14 Msps conversion rate
- 12-bit DAC with output buffers
- Two ultra-low-power comparators with window mode and wake-up capability
- USB 2.0 crystal-less interface with battery charging detection and LPM
- LCD driver supporting up to 8×28 segments with contrast adjustment and blinking mode
- Up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors
- 7-channel DMA controller and multiple communication interfaces (USART, SPI, I2C, UART)
- Internal and external clock sources, including high-speed internal RC and PLL for CPU clock
Applications
- Low-power IoT devices and smart home applications
- Portable and battery-powered devices
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Consumer electronics such as wearables and fitness trackers
- Automotive systems, especially those requiring low power and high reliability
Q & A
- What is the core architecture of the STM32L053R8T7?
The STM32L053R8T7 is based on the Arm Cortex-M0+ 32-bit RISC core. - What is the maximum operating frequency of the STM32L053R8T7?
The maximum operating frequency is up to 32 MHz. - What are the power supply voltage ranges for the STM32L053R8T7?
The device operates from 1.65 V to 3.6 V. - What are the key low-power modes available in the STM32L053R8T7?
The device features Standby, Stop, and Sleep modes with very low current consumption (e.g., 0.27 μA in Standby mode). - Does the STM32L053R8T7 support USB?
Yes, it supports USB 2.0 crystal-less interface with battery charging detection and LPM. - What types of analog peripherals are available on the STM32L053R8T7?
The device includes a 12-bit ADC, a 12-bit DAC, and two ultra-low-power comparators. - Can the STM32L053R8T7 be used for touch sensing applications?
Yes, it supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors. - What is the temperature range for the STM32L053R8T7?
The operating temperature range is from -40 °C to 105 °C. - Does the STM32L053R8T7 have an integrated LCD driver?
Yes, it supports up to 8×28 segments with contrast adjustment and blinking mode. - What types of communication interfaces are available on the STM32L053R8T7?
The device includes USART, SPI, I2C, UART, and USB 2.0 interfaces.
