What this Stellaris MCU is and where it fits
The LM3S2918-EQC50-A2: The LM3S2918 is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris series. It runs at 50 MHz and provides 256 KB of Flash program memory with 64K x 8 of SRAM.
256 KB Flash and 64 KB SRAM — firmware and data budget
The 256 KB Flash and 64K x 8 SRAM support firmware and data buffers for CAN message queues and Modbus holding registers.
CAN bus and peripheral set — fieldbus ready
The LM3S2918 includes a CANbus controller along with I²C, SPI, SSI, Microwire, IrDA, and two UART/USART interfaces. The 52 general-purpose I/O pins connect local sensors and indicators.
Temperature grade and package — mounting and environment
Rated for -40°C to 105°C operating ambient, this MCU suits unconditioned enclosures. The 100-LQFP package (14x14 mm) uses a 2.25 V to 2.75 V supply rail.
Obsolete — sourcing reality for this EOL MCU
Texas Instruments has marked the LM3S2918 as obsolete. No official successor part number is published for this order code, and no last-time-buy window remains open.