Texas Instruments has signalled that the LM3S2276-IQR50-A0T is in its phase-out trajectory, though it remains available for existing production runs through the independent distribution channel. For new designs, a pin-compatible or functionally equivalent alternate should be qualified now to avoid a last-time-buy scramble.
Memory and peripheral fit for control applications
With 64 KB Flash and 32 KB SRAM, this MCU handles a real-time control loop plus a modest protocol stack — think CANopen node or Modbus RTU slave. The 33 GPIOs, six 10-bit ADC channels, and PWM outputs cover sensor readout and actuator drive without external glue logic.