80 MHz Cortex-M4F with FPU — throughput for real-time control
The TM4C1231D5PZI is a Texas Instruments Tiva C series 32-bit ARM Cortex-M4F MCU clocked at 80 MHz, with a single-precision floating-point unit that handles PID loops and sensor fusion math without a separate coprocessor. 64 KB of Flash program memory and 24K x 8 of SRAM support mid-complexity firmware for motor drives, industrial gateways, and CAN-based automation nodes. The 2K x 8 EEPROM stores calibration constants and boot parameters without wearing the Flash.
The 100-LQFP package (14x14 mm) provides 69 general-purpose I/O lines.
Procurement teams should confirm last-time-buy windows and evaluate pin-compatible siblings in the Tiva C family for long-term production continuity.
