8085 Memory Organization 8085 has 16 address lines, so it can address up to 64KB of memory. This 64KB may be one single IC or can be made using smaller memory IC.  The operations on the memory IC can be a memory read or memory write. We can connect the RD’ or WR’ lines from the microprocessor to the coprresponding RD’ and WR’ pins of the memory IC. Thses signals can also be generated by an external logic Figure above shows the necessary signals in addition to the pins on a typical 64 Byte memory module. These signals are: 6 address lines ( because 2^6 = 64) 8 address lines to carry 8-bit of data Control lines as RD’, WR’ and CS’ (chip select) The memory