8255 Programmable Peripheral Interface(PPI)-
The Intel 8255 (or i8255) programmable peripheral interface (PPI) chip was developed and manufactured by Intel in the first half of the 1970s for the Intel 8080 microprocessor and is a member of the MCS-85 Family of chips. The i8255 was also used with the Intel 8085 and Intel 8086[1]
and their descendants and found wide applicability in digital
processing systems. It was later cloned by other...
