In 8085 microprocessor the address bus is of __________ bits.
2017
In 8085 microprocessor the address bus is of __________ bits.
- A.
4
- B.
8
- C.
16
- D.
32
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Correct answer: C
Answer: the 8085 microprocessor has a 16-bit address bus.
Address lines are labeled A0 through A15, giving 16 address lines.
Number of unique addresses = 2^16 = 65,536.
Total addressable memory = 65,536 bytes = 64 KB.
For context, the 8085 has an 8-bit data bus but a 16-bit address bus, so it transfers 8 bits at a time while addressing up to 64 KB of memory.