STM32L031 in STM32 Family
The STM32L031 sub-family from STMicroelectronics is a line of ultra-low-power microcontrollers based on the ARM Cortex-M0+ RISC core. Designed for energy-constrained applications, these devices achieve extremely low power consumption across a wide temperature range. They are frequently used in battery-operated devices where high efficiency and a small footprint are critical, offering a balanced mix of 32-bit performance, essential analog peripherals, and integrated EEPROM to reduce total system bill-of-materials.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | I/O Pins | Package | Stock |
|---|---|---|---|
| STM32L031C6T6 (STMicroelectronics) | 38 | LQFP-48 | 2,813 |
| STM32L031G6U6 (STMicroelectronics) | 21 | UFQFN-28 | 2,724 |
The STM32L031 sub-family differentiates primarily through Flash memory density, ranging from 16 KB to 32 KB, and SRAM capacity. Package options are a significant differentiator, with pin counts spanning from 20-pin TSSOP to 32-pin LQFP or UFQFPN configurations. Specific part numbers may also include specialized hardware features such as the AES encryption engine or varying counts of standard serial interfaces like I2C, USART, and SPI.
