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Differences between 8085 and 8086 microprocessor

In the changing world of technologies, the devices used are also changing. Let us take a look at the changes between 8085 series of microprocessors and 8086 series of microprocessors.

Serial No. 8085 microprocessor 8086 microprocessor
1 The data bus is of 8 bits. The data bus is of 16 bits.
2 The address bus is of 16 bits. The address bus is of 20 bits.
3 The memory capacity is 64 KB. The memory capacity is 1 MB.
4 The input/output port addresses are of 8 bits. The input/output port addresses are of 8 bits.
5 The operating frequency is 3 MHz. The operating frequency is 5 MHz.
6 It not have multiplication and division instructions. It have multiplication and division instructions.
7 It does not support pipe-lining. It supports pipe-lining as it has two independent units Execution Unit (EU) and Bus Interface Unit (BIU).
8 It does not support instruction queue. It supports instruction queue.
9 Memory space is not segmented. Memory space is segmented.
10 It consists of 5 flags(Sign Flag, Zero Flag, Auxiliary Carry Flag, Parity Flag, Carry Flag). It consists of 9 flags(Overflow Flag, Direction Flag, Interrupt Flag, Trap Flag, Sign Flag, Zero Flag, Auxiliary Carry Flag, Parity Flag, Carry Flag).


This article is attributed to GeeksforGeeks.org

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