The Intel 8085 ("eighty-eighty-five") is an 8-bit microprocessor produced by Intel and introduced in March 1976. The 8085 uses a single +5-volt (V) power supply .The 8085 is supplied in a 40-pin DIP package. To maximize the functions on the available pins, the 8085 uses a multiplexed address/data(AD^0-AD^7) bus. However, an 8085 circuit requires an 8-bit address latch, so Intel manufactured several support chips with an address latch built-in.