It packs 512 KB of Flash and 128 KB of SRAM, giving firmware headroom for vector-control algorithms, multiple PID loops, and OTA staging buffers without external memory. The 26-channel 12-bit ADC and 7-channel 12-bit DAC let it handle simultaneous current/voltage sensing and analog output in a single chip, which is the main draw over general-purpose MCUs in this footprint.
Mixed-signal density: 26 ADC channels, 7 DAC channels
The STM32G474RET6 carries 26 analog-to-digital converter channels (12-bit) and 7 digital-to-analog converter channels (12-bit) — a density unusual in a 64-pin LQFP. For a three-phase motor drive, you can sample all phase currents plus the DC-link voltage on dedicated ADC channels while the DACs generate reference voltages or analog setpoints.
The date-code and marking consistency should trace cleanly back to ST's authorized chain — the laser etch on the 64-LQFP body is a straightforward authenticity check for incoming inspection.