Internal organization of memory chip.

Question

What are external connection in "internal organization of memory chip" ? How these lines are decided ?

Example memory with 128 bits (16×8) requires 14 external connections.

How we decided this ☝ ?

Answer 1

For 16 x 8 memory organization =memory with 16 word each of 8 bit

16 word require 4 Address Lines (2⁴=16)

8 bit of 16x8 memory org. require 8 Data Lines

by default :CONTROL PINS :read + write = 2 pins

Total External Connections = 4+8+2=14 connections

If we consider power and ground connections also (+ 2 more connection)

then we get,

Total External Connections = 4+8+2+2=16 connections 

The above diagram is of MEMORY INTERFACE. It shows that memory chip externally connected mainly with address lines , data lines and control signals.