Overview
The STM32L011F4U3TR 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 STM32L011F4U3TR features high-speed embedded memories, including up to 16 Kbytes of Flash program memory, 512 bytes of data EEPROM, and 2 Kbytes of RAM. The device also includes an extensive range of enhanced I/Os and peripherals, such as analog features, timers, and communication interfaces.
With its ultra-low-power platform, the STM32L011F4U3TR operates from a 1.65 V to 3.6 V power supply and is available in the -40 to +125 °C temperature range, making it versatile for various industrial and consumer applications.
Key Specifications
| Specification | Value |
|---|---|
| Core | ARM® 32-bit Cortex®-M0+ |
| Maximum Frequency | Up to 32 MHz |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 to +125 °C |
| Standby Mode Current | 0.23 μA (2 wakeup pins) |
| Stop Mode Current | 0.34 μA (16 wakeup lines) |
| Stop Mode + RTC + 2 KB RAM Retention Current | 0.67 μA |
| Run Mode Current | Down to 79 μA/MHz |
| Wakeup Time | 5 μs (from Flash memory) |
| ADC Conversion Current | 1 μA (12-bit ADC at 10 ksps) |
| Flash Memory | Up to 16 KB with ECC |
| RAM | 2 KB |
| Data EEPROM | 512 B with ECC |
| Backup Register | 20-byte |
| Communication Interfaces | USART, SPI, I2C, Low-power UART |
| Timers | 8 timers including 16-bit, ultra-low-power timer, SysTick, RTC, and 2 watchdogs |
| Package | UFQFPN20 3x3x0.6 P0.5 NO EXP PAD |
Key Features
- Ultra-low-power platform: Features low power modes such as Standby, Stop, and low power RTC and RAM retention.
- High-performance core: ARM® 32-bit Cortex®-M0+ core operating at up to 32 MHz.
- Rich analog peripherals: Includes a 12-bit ADC with hardware oversampling, ultra-low-power comparators, and a temperature sensor.
- Communication interfaces: Supports USART, SPI, I2C, and low-power UART.
- Timers and watchdogs: Features multiple timers including 16-bit timers, an ultra-low-power timer, SysTick, RTC, and two watchdogs.
- Development support: Includes serial wire debug support and a pre-programmed bootloader.
- Power management: Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds, ultralow power POR/PDR, and programmable voltage detector (PVD).
- Memory and data protection: Up to 16 KB Flash memory with ECC, 2 KB RAM, 512 B data EEPROM with ECC, and sector protection against R/W operation.
Applications
The STM32L011F4U3TR is suitable for a variety of applications that require low power consumption and high performance. These include:
- Industrial automation: For applications such as sensor nodes, control systems, and IoT devices.
- Consumer electronics: For devices like smart home appliances, wearables, and portable electronics.
- Medical devices: For low-power medical devices such as fitness trackers, health monitors, and portable diagnostic equipment.
- Automotive systems: For applications requiring low power and high reliability, such as in-car infotainment systems and vehicle sensors.
Q & A
- What is the core architecture of the STM32L011F4U3TR?
The STM32L011F4U3TR is based on the ARM® 32-bit Cortex®-M0+ core.
- What is the operating voltage range of the STM32L011F4U3TR?
The device operates from a 1.65 V to 3.6 V power supply.
- What are the low-power modes available on the STM32L011F4U3TR?
The device features Standby, Stop, and low power RTC and RAM retention modes.
- What is the maximum frequency of the STM32L011F4U3TR?
The device can operate up to a frequency of 32 MHz.
- What types of communication interfaces are supported by the STM32L011F4U3TR?
The device supports USART, SPI, I2C, and low-power UART.
- What is the temperature range of the STM32L011F4U3TR?
The device operates in the -40 to +125 °C temperature range.
- What are the memory specifications of the STM32L011F4U3TR?
The device includes up to 16 KB Flash memory with ECC, 2 KB RAM, and 512 B data EEPROM with ECC.
- Does the STM32L011F4U3TR support serial wire debug?
Yes, the device supports serial wire debug.
- What is the package type of the STM32L011F4U3TR?
The device is available in the UFQFPN20 3x3x0.6 P0.5 NO EXP PAD package.
- What are some typical applications for the STM32L011F4U3TR?
Typical applications include industrial automation, consumer electronics, medical devices, and automotive systems.
