25 MHz Cortex-M3 with 16 KB Flash — where it lands in the Stellaris line
The LM3S316-EGZ25-C2: It targets cost-sensitive control applications — motor commutation, sensor fusion, human-machine interface — where the 32 I/O lines and the integrated ADC (four 10-bit channels) cover the peripheral count without needing an external converter.
Memory and peripheral budget — what fits and what does not
16 KB Flash and 4 KB SRAM support control loops and UART bootloader. Peripherals include I2C, SPI/SSI, Microwire, UART/USART, PWM, and watchdog.
Package and thermal — 48-VQFN with exposed pad
The 48-VQFN package (7x7 mm) has an exposed thermal pad. For operation at 105°C ambient, the pad requires a via array to a ground plane.
TI lists the LM3S316-EGZ25-C2 as Active. The Stellaris 300 family includes pin-compatible siblings with larger Flash that drop in without a board spin.