Modern Computer Architecture and Organization, by Jim Ledin. Published by Packt Publishing.
A 16 gigabit DRAM integrated circuit has two bank group selection inputs, two bank selection inputs, and 17 row address inputs. How many bits are in each row of a bank in this device?
The DRAM circuit contains 16 gigabits = 16 × 230 bits
The number of address bits is 2 bank group bits + 2 bank bits + 17 row address bits = 21 bits
The row dimension of each bank is therefore (16 × 230) ÷ 221 = 8192 bits