The TMS320F28067UPNT is a 32-bit C28x Piccolo microcontroller from Texas Instruments, running at 90 MHz with 256 KB of Flash and 50K x 16 of RAM. The 80-LQFP package keeps board area tight, but that means no socket; swapping one on site needs a hot-air station, not a screwdriver.
90 MHz and the control loop
The 90 MHz core clock feeds a PWM module that can update at sub-microsecond intervals. The 12-bit ADC samples twelve channels.
Lifecycle reality — act now
TI lists this part as active, but the EOL hot flag signals that a last-time-buy window is open or imminent. If you are qualifying a new board design, look at the TMS320F2806x family for a pin-compatible path forward.
The 1.71 V to 1.995 V core supply means you need a regulated rail — not a direct battery tap — but the internal oscillator and brown-out reset keep it running through supply dips that would glitch a less robust part.