128 KB Flash, 64 KB RAM — what the memory map supports
The 128 KB program Flash is sized for a single firmware image with room for a modest bootloader, while the 64 KB SRAM handles real-time data buffers and stack. That combination fits applications like a CAN-to-Ethernet gateway or a motor-controller state machine that doesn't need external memory.
Connectivity peripherals: CAN, Ethernet, and serial interfaces
The Ethernet MAC with dedicated DMA is the standout — it enables low-cost embedded web servers or industrial protocol gateways without an external PHY controller. The CAN 2.0B controller suits automotive or factory-floor networking.
New-production allocations are gone; any available units are from remaining inventory or the surplus channel. The last-time-buy window has closed, so procurement should verify date-code provenance and plan for a migration if a production run needs ongoing supply.
Sourcing posture for this obsolete part
Buyers should be prepared to evaluate date codes and condition, as this is strictly a surplus-channel part.