5, which incorporates the basic features of standard microcontroller. It will be used only a subset of the 8051 simplified instructions. Starting this core basics are all structured the architecture ...

8-bit microcontroller that executes the MCS®51 instruction set and includes a configurable range of features and integrated peripherals. The core’s sophisticated architecture yields the fastest ...

Some other old silicon survives in the form of cores incorporated into other chips, for example the venerable Intel 8051 ... The architecture survives in some of NXPs microcontroller ranges.