The Texas Instruments LM3S9790-IBZ80-C1 is a Stellaris-series ARM Cortex-M3 MCU for connected industrial control.
TI ended production on this Stellaris family line, so the only available stock is what remains in independent distribution or surplus channels. For a BOM that already qualifies this MCU, the procurement path is to source from verified independent inventory — we quote against an RFQ with confirmed traceability and date codes.
80 MHz Cortex-M3 with Ethernet and USB OTG
The 80 MHz ARM Cortex-M3 core runs real-time control loops and TCP/IP offload without an external network coprocessor. The integrated Ethernet MAC and USB OTG controller are the headline differentiators — this part was designed for applications needing both wired networking and USB host/device capability on a single chip. The 60 general-purpose I/O pins, DMA, PWM, and watchdog timer round out the feature set for motor drives, building automation gateways, and industrial HMIs.
BGA footprint and rework considerations
The 0.8 mm ball pitch is manageable with standard stencil apertures, but the supply voltage (1.235 V to 1.365 V core) demands a clean, low-noise rail — a separate LDO or DC-DC is typical.