Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

consider a 1 Gbit DRAM chip organized as 16 million addresses of 64 bit words. A

ID: 2082820 • Letter: C

Question

consider a 1 Gbit DRAM chip organized as 16 million addresses of 64 bit words. Assume both the DRAM cell and the DRAM chip is square. The column number and offset concatenate to form the memory address. Using the organization approach discussed in class, answer the following questions about the chip. Express all answers in decimal. Problem 2.0 Part A (10 points) Consider a 1 Gbit DRAM chip organized as 16 million addresses of 64 bit words. Assume both the DRAM cell and the DRAM is square. The column number and offset concatenate to form the memory address. Using the organization approach discussed in class, answer the following questions about chip. Express all answers in decimal number of columns column decoder required (n to m) type of mux required (m to m) number of muxes required number of address lines in column number number of address lines in column offset

Explanation / Answer

number of columns = square root of 1G = square root of 230 = 215= 32K

requirement of column decoder = 15 - 32K

type of MUX that is required = 32/64K =512 to 1 MUX is required

number of MUX's required = 64 MUX

number of address lines in column number = 15

number of address lines in column offset = 9