Overview
The STM32L011F3U3TR is a member of the STM32L011xx 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 maximum frequency of 32 MHz. It is designed to provide high power efficiency and is suitable for a wide range of applications requiring low power consumption.
The STM32L011F3U3TR 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 a comprehensive set of peripherals and interfaces, such as analog features, timers, and communication interfaces.
With its ultra-low-power modes and extensive range of clock sources, this microcontroller is ideal for battery-powered devices and other applications where power efficiency is crucial.
Key Specifications
| Specification | Details |
|---|---|
| Core | ARM® 32-bit Cortex®-M0+ |
| Maximum Frequency | 32 MHz |
| Power Supply | 1.65 V to 3.6 V (down to 1.65 V at power down) |
| Temperature Range | -40 to +125 °C |
| Flash Memory | Up to 16 Kbytes with ECC |
| RAM | 2 Kbytes |
| Data EEPROM | 512 bytes with ECC |
| Backup Register | 20 bytes |
| ADC | 12-bit, up to 10 channels (1.14 Msps) |
| Comparators | 2 ultra-low-power comparators |
| Timers | 8 timers (including 3 general-purpose 16-bit timers, 1 low-power timer, 1 RTC, 1 SysTick, and 2 watchdogs) |
| Communication Interfaces | I2C, SPI, USART, and low-power UART (LPUART) |
| Package | UFQFPN20 3x3x0.6 P0.5 NO EXP PAD |
| Low-Power Modes | Standby mode (0.23 μA), Stop mode (0.34 μA), Stop mode + RTC + 2 KB RAM retention (0.67 μA) |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, etc.)
- High-performance ARM® Cortex®-M0+ 32-bit RISC core operating at up to 32 MHz
- High-speed embedded memories: up to 16 Kbytes of Flash, 512 bytes of data EEPROM, and 2 Kbytes of RAM
- Rich analog peripherals: 12-bit ADC, ultra-low-power comparators, and multiple timers
- Advanced communication interfaces: I2C, SPI, USART, and low-power UART (LPUART)
- Real-time clock (RTC) and backup registers
- Internal voltage adaptation and multiple clock sources
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
- Programmable voltage detector (PVD) and ultralow power POR/PDR
- Up to 38 fast I/Os (31 I/Os 5V tolerant)
Applications
- Battery-powered devices and IoT applications requiring low power consumption
- Sensor networks and wireless communication devices
- Industrial automation and control systems
- Medical devices and healthcare applications
- Consumer electronics and wearable devices
Q & A
- What is the core architecture of the STM32L011F3U3TR?
The STM32L011F3U3TR is based on the ARM® 32-bit Cortex®-M0+ RISC core.
- What is the maximum operating frequency of the STM32L011F3U3TR?
The maximum operating frequency is 32 MHz.
- What is the power supply range for the STM32L011F3U3TR?
The power supply range is from 1.65 V to 3.6 V (down to 1.65 V at power down).
- What are the low-power modes available on the STM32L011F3U3TR?
The device features Standby mode (0.23 μA), Stop mode (0.34 μA), and Stop mode + RTC + 2 KB RAM retention (0.67 μA).
- What types of communication interfaces are available on the STM32L011F3U3TR?
The device includes I2C, SPI, USART, and low-power UART (LPUART) interfaces.
- What is the temperature range for the STM32L011F3U3TR?
The operating temperature range is from -40 to +125 °C.
- How much Flash memory does the STM32L011F3U3TR have?
The device has up to 16 Kbytes of Flash program memory with ECC.
- What are the key analog features of the STM32L011F3U3TR?
The device features a 12-bit ADC, two ultra-low-power comparators, and multiple timers.
- Does the STM32L011F3U3TR have a real-time clock?
Yes, the device includes a real-time clock (RTC) and backup registers.
- What is the package type for the STM32L011F3U3TR?
The device is available in the UFQFPN20 3x3x0.6 P0.5 NO EXP PAD package.
