D8751H Microcontroller for Legacy Embedded Control

D8751H is a solid fit for older control boards that still rely on an 8051-compatible architecture and programmed EPROM memory. It is an 8-bit microcontroller with 4 Kbytes of EPROM, 128 bytes of RAM, 32 I/O lines, two 16-bit timer counters, and a full-duplex serial port. That mix supports established control logic, simple communications, and direct digital interfacing without forcing a redesign of the original board. D8751H works well in service programs, industrial controls, and instrumentation where software compatibility is often more important than adding new features. The ceramic 40-pin DIP package also suits socketed and through-hole assemblies that remain common in long-life systems. Request a quote for D8751H.