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STMicroelectronics STM32F302R6T6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F302R6T6 STM32F3 ARM Cortex-M4 MCU, 72 MHz, 32 KB Flash

MPNSTM32F302R6T6
Active

STMicroelectronics STM32F3 series, ARM Cortex-M4 32-bit MCU, 72 MHz, 32 KB Flash, 16K x 8 RAM, CANbus, I²C, SPI, UART/USART, USB, 51 I/O, 64-LQFP (10x10 mm), -40°C to 85°C.

$6.2400Ref. price · indicative, final on quote
STMicroelectronics STM32F302R6T6 datasheet (PDF)
Packaging64-LQFP
RoHSROHS3 Compliant
SeriesSTM32F3
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32F302R6T6 specifications
ParameterValue
SeriesSTM32F3
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed72MHz
PackageTray
RAM size16K x 8
Core size32-Bit Single-Core
PeripheralsDMA, I²S, POR, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, SPI, UART/USART, USB
Number of i (O)51
Core processorARM® Cortex®-M4
Case64-LQFP
Data convertersA/D 15x12b; D/A 1x12b
Program memory size32KB (32K x 8)

Product details

72 MHz Cortex-M4 with FPU — what it means for motor-control and sensor-fusion loops

The STM32F302R6T6: The single-precision FPU handles trigonometric and filter math without software emulation. The 32 KB Flash and 16 KB SRAM suit firmware footprints for field-oriented motor control or sensor-hub processing.

64-LQFP — rework-friendly footprint, 51 I/O brought out

The 51 GPIOs include remappable pins for the CAN, USB, and multiple SPI/I²C peripherals.

The on-chip analog includes a 12-bit ADC with 15 multiplexed channels and a single 12-bit DAC, enough for three-phase current sensing plus a setpoint output. Internal oscillator trims to 1% accuracy, saving an external crystal for UART or CAN at moderate baud rates.

The base product number STM32F302 covers multiple Flash and RAM density variants in the same 64-LQFP footprint, so a firmware or memory upgrade (e.g., to the STM32F302R8T6 with 64 KB Flash) is a drop-in swap if the project outgrows the 32 KB limit.

Frequently asked questions

What is the maximum clock speed of STM32F302R6T6?

The core runs at 72 MHz. At that speed the Flash requires one wait state for zero-wait execution; the FPU and single-cycle multiply-accumulate keep the loop tight for control algorithms.

Is STM32F302R6T6 the same as STM32F302R8T6?

No — the R6 variant has 32 KB Flash, while the R8 carries 64 KB Flash. Both share the same 64-LQFP footprint, pinout, and peripheral set, so a firmware migration is a direct board-level swap if you need the extra code space.

What is the closest functional second-source for STM32F302R6T6?

The STM32L151CBU6A is a lower-power ARM Cortex-M3 alternative at 32 MHz with similar connectivity (I²C, SPI, UART, USB) and a 12-bit ADC, but it lacks the FPU and the 72 MHz performance of the Cortex-M4. It is not a pin-compatible drop-in — the package and I/O count differ — so a board redesign is required.