| Manufacturer | STMicroelectronics |
| Product Category | ARM Microcontrollers - MCU |
| RoHS Compliance | Details |
| Series | STM32L431RB |
| Tradename | STM32 |
| Mounting Style | SMD/SMT |
| Package / Case | LQFP-64 |
| Core Processor | ARM Cortex M4 |
| Program Memory Size | 128 kB Flash |
| Data RAM Size | 64 kB SRAM |
| Data Bus Width | 32 bit |
| Maximum Clock Frequency | 80 MHz |
| Number of I/Os | 52 I/O |
| ADC Resolution | 12 bit |
| Number of ADC Channels | 16 Channel |
| DAC Resolution | 12 bit |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Operating Temperature | -40°C to +85°C |
| Packaging | Tray |
| Factory Pack Quantity | 960 |
| Unit Weight | 0.013680 oz |
| Moisture Sensitive | Yes |