Existing production lines can still source it through independent distribution, but new designs should look at the current Stellaris or Tiva C Series portfolio for a pin-compatible upgrade path. The 25 MHz core and 48-LQFP footprint are common across the family, so a migration is typically a firmware recompile and a BOM swap.
Connectivity and peripherals for control applications
The LM3S315 integrates UART/USART, SPI, SSI, and Microwire serial interfaces, along with 32 GPIOs. The internal oscillator and WDT simplify the board-level BOM for a compact sensor node or a brushless-DC motor controller. The 4x10-bit ADC provides enough resolution for current-sense feedback or potentiometer inputs.