Overview
The STM32L011K4U3TR is a member of the STM32L0 series 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 STM32L011K4U3TR features high-speed embedded memories, including up to 16 KB of Flash program memory, 2 KB of RAM, and 512 bytes of data EEPROM. It also includes a set of backup registers and sector protection against R/W operations. The device supports multiple low-power modes, making it ideal for battery-powered devices and other low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Processor | ARM® Cortex®-M0+ |
| Operating Frequency | Up to 32 MHz |
| Flash Memory | Up to 16 KB with ECC |
| RAM | 2 KB |
| EEPROM | 512 bytes with ECC |
| Backup Register | 20 bytes |
| Power Supply | 1.65 V to 3.6 V (down to 1.65 V at power down) |
| Operating Temperature | -40°C to 125°C |
| Package | UFQFPN32 5x5 mm |
| Number of I/Os | Up to 38 fast I/Os (28 high current) |
| Analog Peripherals | 1x 12-bit ADC (up to 10 channels), 2x ultra-low-power comparators |
| Timers | 3x 16-bit timers, 1x ultra-low-power timer, 1x RTC, 2x watchdogs |
| Communication Interfaces | 1x I2C, 1x SPI, 1x USART, 1x low-power UART (LPUART) |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, etc.)
- High-speed internal oscillators: 16 MHz RC, 37 kHz RC, and 65 kHz to 4.2 MHz RC
- PLL for CPU clock
- Pre-programmed bootloader and serial wire debug support
- Rich analog peripherals including a 12-bit ADC and ultra-low-power comparators
- Multiple timers: general-purpose timers, ultra-low-power timer, RTC, and SysTick
- Two watchdogs: independent and window watchdogs
- Standard and advanced communication interfaces: I2C, SPI, USART, and low-power UART
- Real-time clock and backup registers that remain powered in Standby mode
- Brownout reset (BOR) with 5 selectable thresholds and ultra-low power POR/PDR
Applications
- Battery-powered devices and IoT applications requiring low power consumption
- Sensor networks and data logging systems
- Industrial automation and control systems
- Medical devices and portable health monitors
- Consumer electronics such as smart home devices and wearables
Q & A
- What is the core processor of the STM32L011K4U3TR?
The core processor is the ARM® Cortex®-M0+ 32-bit RISC core.
- What is the maximum operating frequency of the STM32L011K4U3TR?
The maximum operating frequency is up to 32 MHz.
- How much Flash memory does the STM32L011K4U3TR have?
The device has up to 16 KB of Flash memory with ECC.
- What is the power supply range for the STM32L011K4U3TR?
The power supply range is from 1.65 V to 3.6 V (down to 1.65 V at power down).
- What are the key analog peripherals of the STM32L011K4U3TR?
The key analog peripherals include a 12-bit ADC with up to 10 channels and two ultra-low-power comparators.
- What communication interfaces are available on the STM32L011K4U3TR?
The device features I2C, SPI, USART, and a low-power UART (LPUART).
- Does the STM32L011K4U3TR support low-power modes?
Yes, it supports multiple low-power modes including Standby and Stop modes.
- What is the operating temperature range of the STM32L011K4U3TR?
The operating temperature range is from -40°C to 125°C.
- How many I/Os does the STM32L011K4U3TR have?
The device has up to 38 fast I/Os, with 28 being high current.
- Is the STM32L011K4U3TR RoHS compliant?
Yes, the device is RoHS compliant.
