The Texas Instruments LM3S1332-IQC50-A2 is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris family, running at 50 MHz with 96 KB of Flash and 16 KB of SRAM. It has 57 I/O lines and peripherals including UART/USART, SPI, SSI, Microwire, IrDA, three 10-bit ADC channels, PWM, and a watchdog timer.
50 MHz core — what it buys you on the bus
At 50 MHz the Cortex-M3 handles a PID loop at a few kHz. The 16 KB SRAM is tight for heavy buffering. The 96 KB Flash is enough for a modest application with an RTOS kernel.
Obsolete — what that means for your BOM line
The LM3S1332-IQC50-A2 is marked obsolete by Texas Instruments. There is no official successor listed in the lifecycle record. For production or repair, this part is sourced through the independent surplus and broker channel.