Cortex-M4 with 72 MHz — what that means for a control loop
The STM32F334K8U6TR is a 32-bit ARM Cortex-M4 MCU from STMicroelectronics, clocked at 72 MHz with a single-precision FPU for real-time math in motor-control or digital-power loops.
Analog integration — 10 ADC channels, 3 DAC outputs
The on-chip data converters — 10 channels of 12-bit ADC and 3 channels of 12-bit DAC — cover current sensing and setpoint generation without external converters.
Connectivity and peripherals — CANbus, I²C, SPI, UART
The peripheral set includes CANbus, I²C, IrDA, LINbus, SPI, and UART/USART — enough to interface with an inverter gate-driver over SPI, a Hall sensor over I²C, and a CANopen fieldbus. The DMA engine offloads data transfers from the core, keeping the 72 MHz CPU free for the control algorithm. The 25 I/O include PWM-capable channels; the part also integrates a programmable watchdog timer and brownout reset.
Sourcing and lifecycle
This part carries an active lifecycle status. It is sourced to order through independent distribution; availability and current pricing are confirmed at quote time.