ST STM32F3 series 32-bit ARM Cortex-M4 MCU, 72MHz, 384KB Flash, 80K x 8 RAM, 51 I/O, 22x12b ADC, 2x12b DAC, CANbus, USB, -40°C to 85°C, 64-LQFP.
| Parameter | Value |
|---|---|
| Series | STM32F3 |
| Mounting type | 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) | 51 |
| Core processor | ARM® Cortex®-M4 |
| Case | 64-LQFP |
| Data converters | A/D 22x12b; D/A 2x12b |
| Program memory size | 384KB (384K x 8) |
Expert opinion by Storeroom Sena · Spare-Parts Storeroom & MRO Inventory Keeper
The 72 MHz Cortex-M4 core with single-cycle MAC handles real-time control loops and DSP math. The 12-bit ADC samples two phase currents and DC-link voltage, and the 384 KB Flash stores a bootloader and communication stack.
This is a 32-bit ARM Cortex-M4 MCU running at 72 MHz, with 384 KB Flash, 80 KB SRAM, 51 I/O, 22-channel 12-bit ADC, dual 12-bit DAC, and CANbus/USB/SPI/I²C/UART interfaces. Operating temperature is -40°C to 85°C, supply 2 V to 3.6 V, in a 64-LQFP package.
The STM32F303RCT6 (256 KB Flash) and STM32F303RET6 (512 KB Flash) are pin-compatible density variants in the same 64-LQFP footprint. They share the same peripheral set and can be swapped on the same PCB without layout changes.
The STM32F303RDT6 has 384 KB Flash, while the STM32F303RCT6 has 256 KB Flash. Both are 64-LQFP, 72 MHz Cortex-M4 parts with identical analog and communication peripherals. The RDT6 is the mid-density option for firmware that needs more than 256 KB but less than 512 KB.