Editing Intel MCS-51 (section)

== {{anchor|MCS-151}}Enhanced 8-bit binary compatible microcontroller: MCS-151 family ==
{{Expand section|date=May 2013}}
In 1996 Intel announced the MCS-151 family, an up to 6 times faster variant,<ref name="1+2-51" >{{Cite web|url=http://datasheets.chipdb.org/Intel/MCS51/151BACK.HTM|title=Intel MCS 151 and MCS 251 Microcontrollers|website=datasheets.chipdb.org}}</ref> that's fully binary and [[instruction set]] compatible with 8051. Unlike their 8051 MCS-151 is a pipelined CPU, with 16-bit internal code bus and is 6x the speed. The MCS-151 family was also discontinued by Intel, but is widely available in binary compatible and partly enhanced variants.