c. Draw the block diagram of a 32Gx64-bitRAM using 8Gx64-bit RAM ICs, externalgates, and decoders. Use minimal number ofcomponents. Each RAM IC has R/W', EN',Data (Do-Dm), and Address (Ao-An) pins. Blockdiagram of a RAM IC is shown in Figure 3.R/W'd ENDo-D,DUse a suitable decoder with active-highselect inputs and active-low outputs.8ax64-bit RAMA,-A,AFigure 3. Block diagram of a 8Gx64-bit RAMIC. c. Draw the block diagram of a 32Gx64-bitRAM using 8Gx64-bit RAM ICs, externalgates, and decoders. Use minimal number ofcomponents. Each RAM IC has R/W', EN',Data (Do-Dm), and Address (Ao-An) pins. Blockdiagram of a RAM IC is shown in Figure 3.R/W'd ENDo-D,DUse a suitable decoder with active-highselect inputs and active-low outputs.8ax64-bit RAMA,-A,AFigure 3. Block diagram of a 8Gx64-bit RAMIC.

c. Draw the block diagram of a 32Gx64-bit RAM using 8Gx64-bit RAM ICs, external gates, and decoders. Use minimal number of components. Each RAM IC has R/W', EN', Data (Do-Dm), and Address (Ag-An) pins. Block diagram of a RAM IC is shown in Figure 3. R/W' Do-D, C EN D Use a suitable decoder with active-high select inputs and active-low outputs. 86x64-bit RAM A-A, Figure 3. Block diagram of a 8G×64-bit RAM

c. Draw the block diagram of a 32Gx64-bit RAM using 8Gx64-bit RAM ICs, external gates, and decoders. Use minimal number of components. Each RAM IC has R/W', EN', Data (Do-Dm), and Address (Ag-An) pins. Block diagram of a RAM IC is shown in Figure 3. R/W' Do-D, C EN D Use a suitable decoder with active-high select inputs and active-low outputs. 86x64-bit RAM A-A, Figure 3. Block diagram of a 8G×64-bit RAM

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Refer to Figure Q1(a), describe the data memory of PIC-X.
(b) Draw the transistor level circuit diagram of a 2X2 bit six transistor static RAM cell array. Clearly show the row select and column select signal in your circuit. Explain the write operaion and the read operation of the memory cell assuming a “1” being stored and then read to the 1st row, 2nd coloumn of the array.
Draw block diagram for 64k * 8 memory
II. IMPLEMENTATION OF SIMPLE SYSTEMS. Implement the given RTL below using bus connection and multiplexers and/or tri-state buffers. Assume that the given control signals are all mutually exclusive, and all registers are 4-bit wide. You may include additional flip-flop pins if necessary. A: W + Z,V + 1(high) B: X + V,Z + V C: X +W,Y + 0 (low) D: V + Y,W + Y,z-Y E: Y + X,Z + X
Using four 32 x 8 ROM chips, design a circuit such that the effective size of the ROM circuit is 64 x 16. The ROM chip must show the Address inputs, enable input, and data connections. As shown in the lessons, use the MSB(s) of the combined address lines as the chip selection lines.
II. IMPLEMENTATION OF SIMPLE SYSTEMS. Implement the given RTL below using bus connection and tri-state buffers. Assume that the given control signals are mutually exclusive, and all registers are 4-bit wide. You may include additional flip-flop pins if necessary. V: c€ E, DEE W: DEB, E €1 (high) X: DEC, BEC, A€c Y: cEA, E E A Z: AD, B E0 (low)
Redraw the block diagram in Figure for a 64k × 8 memory.
Q. Construct a 4 KB memory using 1 KB IC's
4) Obtain the truth table for a 2-to-1 word-sized mux where the two input buses and output bus are all 2-bits wide. Use IN0_1, IN0_1, IN1_0, IN1_1, S for the inputs and OUT_0 and OUT_1 for the outputs. Obtain the schematic diagram for a possible implementation of such a mux following the example given in Figure 3.3 correctly.
A. Design an interface circuit for three 8255 PPI's and minimum mode 8088 MPU. The memory-mapped addresses are started from [00700h].
Draw the complete design for constructing a SRAM memory of a total capacity 512KX32 using a SRAM memory 256KX8.
4) Obtain the truth table for a 2-to-1 word-sized mux where the two input buses and output bus are all 2-bits wide. Use IN0_1, IN0_1, IN1_0, IN1_1, S for the inputs and OUT_0 and OUT_1 for the outputs. Obtain the schematic diagram for a possible implementation of such a mux following the example given in Figure 3.3