The Texas Instruments TM4C123GH6PGETR is a Tiva™ C Series 32-bit microcontroller built around an ARM Cortex-M4F core with single-precision floating-point unit, running at 80 MHz. The 105 available I/O lines in the 144-LQFP package give it the pin count to handle parallel sensor interfaces, a parallel LCD, or multiple serial peripherals without multiplexing.
Peripheral set and connectivity — CAN, USB OTG, and serial options
The QEI (quadrature encoder interface) peripheral is purpose-built for motor position feedback in servo drives and robotics. The DMA controller can move data between peripherals and memory without CPU intervention, which matters when the core is busy running a field-oriented control loop at 80 MHz.
Analog integration — 12-bit ADC with 24 channels
The on-chip data converter subsystem provides 24 channels of 12-bit ADC, enough to sample multiple analog feedback signals — current sensors, thermistors, potentiometers — without an external multiplexer. For a motor drive reading three phase currents plus a DC-link voltage, the channel count is more than adequate.