72 MHz Cortex-M4 with FPU — what it buys you
The STM32F303CBT6TR: The 48-LQFP package (7x7 mm) keeps the footprint small enough for a two-layer board, with 37 GPIOs that cover CAN, USB, SPI, I²C, and multiple UARTs.
STM32F303CBT6TR ARM Cortex-M4 MCU, 72 MHz, 128 KB Flash
MPNSTM32F303CBT6TR
Active
STMicroelectronics STM32F3 series, ARM Cortex-M4 32-bit MCU, 72 MHz, 128 KB Flash, 32K x 8 RAM, CANbus, I²C, IrDA, LINbus, SPI, UART/USART, USB, 37 I/O, 48-LQFP, -40°C to 85°C.
$6.6100Ref. price · indicative, final on quote
Packaging48-LQFP
RoHSROHS3 Compliant
SeriesSTM32F3
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| 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 | Tape & Reel (TR) Cut Tape (CT) |
| 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) |
Product details
Frequently asked questions
Can the STM32F303CBT6TR replace the STM32F303CBT6?
Yes — the TR suffix only indicates Tape & Reel packaging; the die and firmware are identical to the STM32F303CBT6. The same code compiles and runs, and the pinout matches.