The STM32F031C6T7: Product status is Active.
Industrial temperature range — where it lives
The 105°C ceiling gives headroom for self-heating in a sealed enclosure, and the -40°C floor covers cold-start in northern climates.

STMicroelectronics STM32F0 series, ARM Cortex-M0, 32-bit, 48MHz, 32KB Flash, 4K x 8 RAM, 48-LQFP, -40°C to 105°C, 2V to 3.6V supply.
| Parameter | Value |
|---|---|
| Series | STM32F0 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2V ~ 3.6V |
| Operating temperature | -40°C ~ 105°C (TA) |
| Speed | 48MHz |
| Package | Tray |
| RAM size | 4K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | DMA, I²S, POR, PWM, WDT |
| Connectivity | I²C, IrDA, LINbus, SPI, UART/USART |
| Number of i (O) | 39 |
| Core processor | ARM® Cortex®-M0 |
| Case | 48-LQFP |
| Data converters | A/D 13x12b |
| Program memory size | 32KB (32K x 8) |
The STM32F031C6T7: Product status is Active.
The 105°C ceiling gives headroom for self-heating in a sealed enclosure, and the -40°C floor covers cold-start in northern climates.
The difference is the temperature grade. Both share the same 48 MHz Cortex-M0 core, 32 KB Flash, 48-LQFP package, and peripheral set — the T7 variant is the industrial-temperature option for hotter environments.
Yes, the oscillator type is internal, so it can run without an external crystal or clock source for basic timing.