STMicroelectronics STM32F3 series, STM32F303CBT6, 32-bit ARM Cortex-M4 single-core MCU, 72 MHz, 128 KB Flash, 32K x 8 RAM, 37 I/O, CANbus/I²C/SPI/USART/USB, 48-LQFP, -40 to 85 °C.
| Parameter | Value |
|---|---|
| Series | STM32F3 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2V ~ 3.6V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 72MHz |
| Package | Tray |
| RAM size | 32K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | DMA, I²S, POR, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, LINbus, SPI, UART/USART, USB |
| Number of i (O) | 37 |
| Core processor | ARM® Cortex®-M4 |
| Case | 48-LQFP |
| Data converters | A/D 15x12b; D/A 2x12b |
| Program memory size | 128KB (128K x 8) |
For dual-sourcing resilience, the STM32F303 family shares pin-compatible density options — the CCT6 variant offers double the Flash — but no direct second-source from another manufacturer is listed in the official cross-reference.
The core runs at 72 MHz, and the MCU belongs to the STM32F3 series, built around the ARM Cortex-M4 core with single-precision FPU.
Yes, the base product number STM32F303 shares the same 48-LQFP footprint across Flash density variants, so the CCT6 (256 KB Flash) is a pin-compatible drop-in upgrade if firmware fits.
Yes, it is listed as ROHS3 Compliant.