Introduction to Microprocessors & Microcontrollers  (Paperback, Dr. D. Narendar Singh, Mr. Anil Kumar Gona, R. Nagaswetha, B. Pavitra, Ashwini G.)

The 8085 is a microprocessor that has 8 bits and is made using N-MOS technology. It features 16-bit address bus and consequently can address up to 216 = 65536 bytes (64KB) memory addresses via A0-A15. AD0–AD7 are multiplexed over the first eight lines of the address bus and the first eight lines of the data bus, respectively. The eight lines labelled D0 through D7 make up the data bus. It enables external interrupt request.8085 contains of 16-bit programme counter (PC) and stack pointer (SP) (SP). Six 8-bit general purpose register grouped in pairs: BC, DE, HL. It functions at 3 MHz, 5 MHz, and 6 MHz on the Serial in/Serial out Port and needs a power source of +5V to function properly. It is protected by a DIP enclosure with 40 pins (Dual in line package