Overview
The STM32L011K4U3 is a member of the ultra-low-power STM32L011xx family of 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 STM32L011K4U3 features high-speed embedded memories, including up to 16 KB of Flash program memory, 2 KB of SRAM, and 512 bytes of data EEPROM. It also includes a set of backup registers and an extensive range of enhanced I/Os and peripherals.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | ARM® 32-bit Cortex®-M0+ |
| Frequency | Up to 32 MHz |
| Flash Memory | Up to 16 KB with ECC |
| SRAM | 2 KB |
| Data EEPROM | 512 bytes with ECC |
| Backup Register | 20 bytes |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 to 125 °C |
| Package | UFQFPN32 5x5 mm |
| ADC | 1x 12-bit with hardware oversampling |
| Timers | 3x 16-bit timers, 1x low-power timer (LPTIM), 1x RTC, 1x SysTick |
| Watchdogs | 2 (independent and window) |
| Communication Interfaces | 1x I2C, 1x SPI, 1x USART, 1x low-power UART (LPUART) |
| I/Os (High Current) | 28 |
| Comparators | 2 ultra-low-power comparators |
Key Features
- Ultra-low-power platform with multiple power-saving modes, including Standby, Stop, and Run modes.
- High-performance ARM® Cortex®-M0+ core with a maximum frequency of 32 MHz.
- High-speed embedded memories: up to 16 KB Flash, 2 KB SRAM, and 512 bytes data EEPROM.
- Analog features: 12-bit ADC with hardware oversampling, two ultra-low-power comparators.
- Multiple timers: three 16-bit timers, one low-power timer (LPTIM), one RTC, and one SysTick.
- Two watchdogs: one independent and one window watchdog.
- Advanced communication interfaces: I2C, SPI, USART, and low-power UART (LPUART).
- Real-time clock and backup registers that remain powered in Standby mode.
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds.
Applications
- Low-power IoT devices and smart sensors.
- Energy-efficient industrial automation and control systems.
- Portable and wearable devices requiring minimal power consumption.
- Medical devices and health monitoring systems.
- Automotive systems, especially those requiring low power and high reliability.
Q & A
- What is the core architecture of the STM32L011K4U3?
The STM32L011K4U3 is based on the ARM® 32-bit Cortex®-M0+ RISC core.
- What is the maximum frequency of the STM32L011K4U3?
The maximum frequency is up to 32 MHz.
- What are the memory specifications of the STM32L011K4U3?
It features up to 16 KB of Flash memory, 2 KB of SRAM, and 512 bytes of data EEPROM.
- What is the power supply range for the STM32L011K4U3?
The power supply range is from 1.65 V to 3.6 V.
- What is the operating temperature range of the STM32L011K4U3?
The operating temperature range is from -40 to 125 °C.
- What communication interfaces are available on the STM32L011K4U3?
The device includes I2C, SPI, USART, and a low-power UART (LPUART).
- Does the STM32L011K4U3 have any analog features?
Yes, it includes a 12-bit ADC with hardware oversampling and two ultra-low-power comparators.
- What are the power-saving modes available on the STM32L011K4U3?
The device features multiple power-saving modes, including Standby, Stop, and Run modes.
- Is the STM32L011K4U3 RoHS compliant?
Yes, the device is RoHS compliant and comes in ECOPACK2 packages.
- What is the typical current consumption in Standby mode?
The typical current consumption in Standby mode is 0.23 µA with 2 wakeup pins.
