8751

8751 is a numeric designation that can denote several things, most notably a family of 8-bit microcontroller devices produced by Intel in the 1980s and 1990s. The Intel 8751 was designed for embedded control tasks and appeared in devices where a compact, self-contained processor was advantageous.

The device integrates a central processor, memory, and I/O interfaces on a single chip, enabling compact, stand-alone control units. Depending on the variant, on-chip program memory may be implemented as ROM or EPROM, complemented by a modest amount of RAM and a set of I/O ports and interrupt options. This configuration made the 8751 suitable for a range of applications, including consumer electronics, household appliances, automotive controls, and industrial equipment.

Variants differ in memory capacity, I/O count, and supported features. Programming and debugging typically required specialized tools, with in-system programming approaches common for devices of that era. Over time, newer microcontroller architectures replaced the 8751, and the line became largely obsolete, though it remains of interest for hobbyists and for maintenance of legacy equipment.

In other contexts, 8751 can appear as a model or catalog number for components not related to Intel. As a numeric label, it does not denote a single standardized specification across all uses, so precise capabilities depend on the specific part and vendor. The term is most often encountered in historical discussions of early embedded electronics and vintage Intel-based hardware.