What Determines the Size of a Memory Bank?

💡 The Answer

• Bank size depends on two factors: bits per column/row per chip and number of chips.
• The bits in a column and a row per chip define the internal storage capacity of one chip.
• Multiplying by the number of chips in the bank gives the total bank capacity.
• For example, if a chip has 256 bits per column and 512 per row, and the bank has 8 chips, size is large.
• This relationship ties chip design to overall memory module capacity.
• The memory controller knows the bank size and uses it for addressing.