For existing designs, the only sourcing path is the independent market — broker or surplus inventory — where availability is intermittent and pricing reflects scarcity. Any BOM still specifying this MCU should be evaluated for a migration path, as long-term supply cannot be guaranteed.
80 MHz Cortex-M3 with 384 KB Flash — the performance tier
The 80 MHz core delivers roughly 1.25 DMIPS/MHz, or about 100 DMIPS total, which is adequate for real-time control loops, motor commutation, and industrial protocol handling. The peripheral set includes a 16-channel 12-bit ADC, PWM, DMA, watchdog timer, brown-out detect, and POR. The 60 GPIOs in the 100-LQFP package give enough headroom for parallel displays, keypad matrices, and external memory interfaces.
100-LQFP footprint and supply rails
The core supply is 1.235 V to 1.365 V — a narrow window that requires a regulated 1.3 V rail, typically from a separate LDO or a switcher. The I/O ring runs on a separate supply (not listed in this entry, but standard for the Stellaris family is 3.3 V).