32-bit single-core ARM Cortex-M3 in a 100-LQFP package (14x14 mm body).
Peripheral set — what you can actually connect
The 16-channel 10-bit ADC covers analog sensing without an external converter. For a hobbyist building a connected robot or a networked sensor node, this one chip handles the Ethernet stack, the motor encoders, and the serial console — no extra interface chips needed.
The LM3S9792-IQC80-C0 carries an official lifecycle status of Obsolete. TI ended production on the Stellaris line after acquiring Luminary Micro and transitioning to the Tiva C series. There is no direct pin-compatible replacement from TI — the Tiva TM4C devices use a different pinout and peripheral map. For an existing design that already has the PCB laid out for this 100-LQFP footprint, your options are to buy remaining stock through independent distribution or to plan a board spin.
Sourcing a legacy Stellaris part
The independent market is where you'll find it — new-old-stock from excess inventory, or pulled from unused production runs. When you submit an RFQ, we check our multi-source network for date codes and quantities that match your BOM need. For a production line that can't respin the board, we can also quote a lifetime buy quantity if you have a forecast. The 100-LQFP package is common enough that broker stock tends to be available, but the window narrows every year.