72 MHz Cortex-M4 — what it means for the control loop
The STM32F301C8Y6TR: 72 MHz core with hardware FPU and DSP instructions handles field-oriented control of a single PMSM or BLDC motor.
64 KB Flash and 16K x 8 RAM — firmware budget
64 KB Flash holds a moderate sensor-fusion stack plus a bootloader; 16K x 8 SRAM leaves room for a Modbus RTU frame buffer.
49-ball WLCSP — board integration note
49-WLCSP package saves board area. 37 I/O include I²C, SPI, UART, and LIN.
Lifecycle and sourcing
The part carries an EOL lifecycle stage. Official product status is listed as Active. Sourced to order against an RFQ through independent distribution.