80 MHz Cortex-M4F with FPU — what that means on the bus
The TM4C1233H6PGEI runs an ARM Cortex-M4F core at 80 MHz with a single-precision floating-point unit. That puts it in the sweet spot for control loops that need real-time math — motor FOC, sensor fusion, or digital PSU compensation — without jumping to a DSP or FPGA. The FPU handles trig and divide in hardware; the 256 KB Flash and 32K x 8 RAM give enough headroom for a modest RTOS and a few protocol stacks. 105 I/O pins in a 144-LQFP package mean you can drive a bank of sensors, a parallel LCD, and a CANbus interface without multiplexing. The 20x20 mm footprint is standard for this pin count — no fine-pitch surprises for the assembly house.
Connectivity and peripherals — what's on the die
That covers most industrial fieldbuses and debug links without external transceivers for the digital side. The 24-channel 12-bit ADC samples analog inputs directly — no external mux needed for a multi-sensor array. Internal oscillator and brown-out detect/POR/WDT are built in, so the BOM stays lean: no external crystal needed for non-critical timing, and the watchdog can reset a hung firmware task without a supervisor IC.
Industrial temperature grade — where it runs
Supply range 1.08 V to 3.63 V.
Lifecycle reality — EOL phase, sourced to order
The TM4C1233H6PGEI is flagged as end-of-life (eol_hot). That means TI has issued or will issue a last-time-buy notice. No commitment to long-term production volume without a documented LTB plan.