How many address lines and input-output data lines are needed in 2K × 16…
2021
How many address lines and input-output data lines are needed in 2K × 16 memory unit?
- A.
10 address lines, 16 data lines
- B.
10 address lines, 4 data lines
- C.
11 address lines, 4 data lines
- D.
11 address lines, 16 data lines
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Correct answer: D
Given: 2{K} * 16 memory unit.
1. Calculating Address Lines
The number of words is 2{K}.
We know that $1\text{K} = 1024 = 2^{10}.
Therefore, 2{K} = 2 * 2^{10} = 2^{11}.
Since the number of words is 2^{11}, we need 11 address lines.
2. Calculating Data Lines
The second part of the notation ($16$) represents the number of bits stored in each memory location.
The input-output data lines are always equal to the word size.
Therefore, we need 16 data lines.