What this part is and where it fits
The LM3S1960-IQC50-A2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 1000 series, running at 50 MHz with 256 KB of Flash and 64 KB of RAM. It carries 60 general-purpose I/O lines and a full set of serial interfaces — I²C, SPI, SSI, UART/USART, plus IrDA, Microwire, and a quadrature encoder interface (QEI) for motor-feedback loops. The internal oscillator and brown-out detect / POR / WDT peripherals reduce external component count for a compact industrial controller board. Rated for -40°C to 85°C. Supply range is 2.25 V to 2.75 V.
NRND lifecycle — what it means for procurement
The LM3S1960-IQC50-A2T carries an NRND (Not Recommended for New Designs) status. This is the official signal from Texas Instruments that the part is in the phase-out pipeline. No official successor order code is listed in the lifecycle record. The NRND flag means procurement should evaluate a last-time-buy quantity or qualify an alternative. The 100-LQFP footprint and 2.25 V–2.75 V supply narrow the field.
50 MHz core — what it buys the design
The 50 MHz clock rate on this Cortex-M3 delivers throughput for moderate-speed control loops. It is not a high-end part for DSP work.