| PartNumber | STM32L031G6U7 | STM32L031G6U7TR | STM32L031G6U7STR |
| Description | ARM Microcontrollers - MCU 16/32-BITS MICROS | ARM Microcontrollers - MCU Ultra-low-power ARM Cortex-M0+ MCU with 32-Kbytes Flash, 32 MHz CPU | ARM Microcontrollers - MCU Ultra-low-power ARM Cortex-M0+ MCU with 32-Kbytes Flash, 32 MHz CPU |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | UFQFPN-28 | UFQFPN-28 | UFQFPN-28 |
| Series | STM32L031G6 | STM32L031G6 | STM32L031G6 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Moisture Sensitive | Yes | - | - |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| Factory Pack Quantity | 2940 | 3000 | 3000 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Tradename | STM32 | - | STM32 |
| Core | - | ARM Cortex M0+ | - |
| Data Bus Width | - | 32 bit | - |
| Maximum Clock Frequency | - | 32 MHz | - |
| Program Memory Size | - | 32 kB | - |
| Data RAM Size | - | 8 kB | - |
| ADC Resolution | - | 12 bit | - |
| Number of I/Os | - | 21 I/O | - |
| Operating Supply Voltage | - | 1.8 V to 3.6 V | - |
| Minimum Operating Temperature | - | - 40 C | - |
| Maximum Operating Temperature | - | + 105 C | - |
| Product | - | MCU | - |
| Program Memory Type | - | Flash | - |
| Data RAM Type | - | RAM | - |
| Data ROM Size | - | 1 kB | - |
| Data ROM Type | - | EEPROM | - |
| Interface Type | - | I2C, LPUART, SPI, USART | - |
| Analog Supply Voltage | - | 1.65 V to 3.6 V | - |
| Number of ADC Channels | - | 10 Channel | - |
| Number of Timers/Counters | - | 4 Timer | - |
| Processor Series | - | STM32L031 | - |
| Supply Voltage Max | - | 3.6 V | - |
| Supply Voltage Min | - | 1.8 V | - |
| Watchdog Timers | - | Watchdog Timer, Windowed | - |