50 MHz Cortex-M3 with 512 KB flash — where it fits
The internal oscillator and on-chip brown-out detect, POR, PWM, and watchdog peripherals reduce external BOM count. This part was designed for industrial control, human-machine interface, and networked sensor nodes where a balance of processing throughput, memory, and connectivity is needed.
The LM3S1H11-IBZ50-A1T is officially classified as Obsolete by Texas Instruments. For production runs or repair stock, procurement must go through the surplus and independent distribution channel. This is not a part to spec into a new design — the lifecycle risk is already realized.
108-ball BGA — layout and rework notes
It is a surface-mount device shipped in Tape & Reel. The fine-pitch BGA demands careful PCB land pattern design and controlled reflow profiling.
Core and I/O supply is 1.235 V to 1.365 V — a narrow, low-voltage rail that requires a clean regulated source.