A RAM chip has a capacity of 1024 words of 8 bits each ( \( 1 \mathrm{k} \times 8 \) ) The number of \( -2 \times 4 \) decoders with enable line needed to construct a 16 k ( 16 RAM from \( 1 \mathrm{k} \times 8 \) RAM is
16K words from 1K × 8 chips needs \(16K / 1K = 16\) chips, so we need a 4-to-16 decoder to select one chip.
Build it with 2×4 decoders that have an enable input:
Total = 1 + 4 = 5 decoders.
Answer: (A) 5
Reinforce your conceptual grasp with related questions from CUET-MCA 2023:
Take timed full-length mock tests with authentic question distributions, negative marking (+12/-3 in Math), and instant All India Rank calculation.
Start Free Mock Test Series →