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Step 1 of 2 9.05DP Refer the Logic symbol for HM628512 in the Figure 9-24 from the textbook. HM628512 is a 512Kx8 SRAM. Convert 512Kx8 SRAM to binary format. Step 2 of 2 Convert 2Mx8 SRAM to binary format. Replace 512Kx8 by in 2Mx8=4(2"x8) =4(HM628512) Therefore, to build a 2Mx8 SRAM, we need four HM628512 , one 2 to 4 decoder at input side and eight multiplexer at output side.