Overview
The STM32L051K8T7 is a member of the STM32L051x6/8 family of ultra-low-power microcontrollers from STMicroelectronics. This device is based on the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. It is designed to provide high power efficiency and is suitable for a wide range of applications requiring low power consumption.
The STM32L051K8T7 features a comprehensive set of peripherals, including analog and digital interfaces, timers, and communication interfaces. It operates within a temperature range of -40 to 125 °C and supports a power supply voltage from 1.65 V to 3.6 V.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| Frequency | Up to 32 MHz |
| Flash Memory | Up to 64 Kbytes with ECC |
| RAM | 8 Kbytes |
| EEPROM | 2 Kbytes with ECC |
| Backup Register | 20 bytes |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 to 125 °C |
| Standby Mode Current | 0.27 µA (2 wakeup pins) |
| Stop Mode Current | 0.4 µA (16 wakeup lines) |
| Stop Mode + RTC + RAM Retention Current | 0.8 µA |
| Run Mode Current | 88 µA/MHz |
| Wakeup Time from RAM | 3.5 µs |
| Wakeup Time from Flash | 5 µs |
| I/Os | Up to 51 fast I/Os (45 I/Os 5V tolerant) |
| Clock Sources | 1 to 25 MHz crystal oscillator, 32 kHz oscillator for RTC, high speed internal 16 MHz RC, internal low-power 37 kHz RC, internal multispeed low-power 65 kHz to 4.2 MHz RC, PLL for CPU clock |
| Analog Peripherals | 12-bit ADC 1.14 Msps up to 16 channels, 2 ultra-low-power comparators |
| Timers | 9 timers including 3 general-purpose 16-bit timers, 1 low-power timer, 1 RTC, 1 SysTick, and 2 watchdogs |
| Communication Interfaces | 2 USARTs, 1 low-power UART, up to 4 SPIs, 2 I2Cs, 1 I2S |
Key Features
- Ultra-low-power platform: Optimized for low power consumption with various power-saving modes.
- High-performance core: Arm 32-bit Cortex-M0+ core with a memory protection unit (MPU).
- Comprehensive peripherals: Includes 12-bit ADC, ultra-low-power comparators, multiple timers, and rich communication interfaces.
- Advanced clock management: Supports multiple clock sources including crystal oscillators, internal RC oscillators, and a PLL for CPU clock.
- Development support: Features serial wire debug support and a pre-programmed bootloader.
- Environmental robustness: Operates within a temperature range of -40 to 125 °C.
- Power supply flexibility: Supports a power supply voltage from 1.65 V to 3.6 V.
Applications
- Industrial automation: Suitable for low-power industrial control systems and automation.
- IoT devices: Ideal for Internet of Things applications requiring low power consumption and high performance.
- Medical devices: Can be used in medical devices that need to operate for extended periods on a single battery charge.
- Consumer electronics: Applicable in various consumer electronics requiring low power and high efficiency.
- Automotive systems: Can be integrated into automotive systems that demand low power and robust performance.
Q & A
- What is the core architecture of the STM32L051K8T7?
The STM32L051K8T7 is based on the Arm 32-bit Cortex-M0+ core with a memory protection unit (MPU).
- What is the maximum frequency of the STM32L051K8T7?
The maximum frequency is up to 32 MHz.
- How much Flash memory does the STM32L051K8T7 have?
The device has up to 64 Kbytes of Flash memory with ECC.
- What is the power supply voltage range for the STM32L051K8T7?
The power supply voltage range is from 1.65 V to 3.6 V.
- What are the key analog peripherals of the STM32L051K8T7?
The key analog peripherals include a 12-bit ADC with up to 16 channels and two ultra-low-power comparators.
- What communication interfaces are available on the STM32L051K8T7?
The device features 2 USARTs, 1 low-power UART, up to 4 SPIs, 2 I2Cs, and 1 I2S.
- What are the power-saving modes available on the STM32L051K8T7?
The device supports Standby mode, Stop mode, and Stop mode with RTC and RAM retention, among others.
- What is the current consumption in Standby mode?
The current consumption in Standby mode is 0.27 µA with 2 wakeup pins.
- What is the temperature range for the STM32L051K8T7?
The operating temperature range is from -40 to 125 °C.
- Does the STM32L051K8T7 support serial wire debug?
Yes, the device supports serial wire debug.
