STMicroelectronics STM32F3 series, ARM Cortex-M4 32-bit MCU, 72 MHz, 512 KB Flash, 80K x 8 RAM, 115 I/O, CANbus/I²C/SPI/USART/USB, A/D 40x12b, D/A 2x12b, -40°C to 85°C, 144-LQFP.
| 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 | 80K 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) | 115 |
| Core processor | ARM® Cortex®-M4 |
| Case | 144-LQFP |
| Data converters | A/D 40x12b; D/A 2x12b |
| Program memory size | 512KB (512K x 8) |
STM32F303ZET6 has 512 KB of Flash and 80 KB of SRAM. The 40-channel 12-bit ADC array is the standout feature — it lets a single chip sample multiple analog inputs (current-sense resistors, thermistors, encoder signals) without an external multiplexer, saving board area and routing complexity.
The core runs at 72 MHz, which is the rated maximum for this device.
The ZET6 suffix indicates 144 pins and 512 KB Flash; the RET6 variant is a 64-pin LQFP with the same core and Flash size but fewer I/O and a smaller package. The pinout is not compatible between the two.