Multiple choice

The amount of ROM needed to implement a 4 bit multiplier is

  1. 64 bits

  2. 128 bits

  3. 1 Kbit

  4. 2 Kbits
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

For a 4 bit multiplier, there are 24 ×24 = 28 = 256 combinations. Output will contain 8 bits. So, the amount of ROM needed is 28 × 8 bits = 2 Kbits.

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