STM32F301K6U6TR — compact Cortex-M4 with 72 MHz and 32 KB Flash
The STMicroelectronics STM32F301K6U6TR is a 32-bit ARM Cortex-M4 microcontroller from the STM32F3 series, clocked at 72 MHz with 32 KB of Flash and 16 KB of SRAM. It packs 24 I/O lines, a 12-bit ADC with 11 channels, a single 12-bit DAC, and connectivity including I2C, SPI, UART/USART, IrDA, and LINbus into a compact package with exposed pad.
72 MHz core — what it means for loop timing
At 72 MHz the Cortex-M4 delivers single-cycle multiply-accumulate and hardware divide. The FPU handles float math without software emulation.
Package and temperature — board-fit constraints
Housed in a package with exposed pad (5x5 mm body), this MCU demands a thermal pad on the PCB for heat dissipation. The -40°C to 85°C industrial temperature range covers most factory-floor and outdoor telecom enclosures. Supply range is 2 V to 3.6 V.