How many address lines and data lines are required to provide a memory…
2019
How many address lines and data lines are required to provide a memory capacity of 16𝐾 × 16?
- A.
10,4
- B.
16,16
- C.
14,16
- D.
4,16
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Correct answer: C
Answer: 14 address lines and 16 data lines.
Key idea: The number of address lines is the base-2 logarithm of the number of addressable words; the number of data lines equals the word width in bits.
Compute the number of words: 16K = 16 × 1024 = 16384 words.
Address lines needed = log2(number of words) = log2(16384) = 14 (because 16384 = 2^14).
Data lines = word size = 16 bits, so 16 data lines are required.
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