MCS48 Code for 80C39 Microcontroller Posted by dapj20 on Dec 04, 2021 in Embedded80C39 is a Cmos Version of 8048 the one that preceded 8031-8051. MCS48 is the set for that, MCS51 is the current set. The circuit of the Analog Front End was a V-F Converter. Read more »Send feedback »