The TM4C1237H6PGEI7 is a Texas Instruments Tiva C series 32-bit ARM Cortex-M4F microcontroller running at 80 MHz. That core includes a single-precision floating-point unit, so PID loops, FFTs, and sensor fusion math execute in hardware rather than software emulation — no cycle-counting through a fixed-point library. 256 KB of Flash holds the application firmware; 32K x 8 of SRAM handles runtime data and stack. The 2K x 8 EEPROM block is useful for calibration constants or boot-config parameters that need to survive a firmware update without wearing the Flash.
End-of-life — sourcing reality
What the data converters and analog front end bring
The on-chip ADC is a 22-channel, 12-bit converter — enough to sample three-phase currents plus a DC-link voltage with channels left over for thermistors and potentiometer feedback. No external ADC needed for most industrial sensor interfaces. DMA moves ADC results to RAM without CPU intervention, keeping the 80 MHz core free for control math.