Digital Electronics: Principles, Devices and Applications

114 Digital Electronics6. It is proposed to construct an eight-input NAND gate using only two-input AND gates and two-inputNAND gates. Draw the logic arrangement that uses the minimum number of logic gates.The two possible logic circuits are shown in Figs 4.61(a) and (b)7. Draw the logic diagram to implement an eight-input EX-NOR function using the minimum numberof two-input logic gates.Further Reading1. Cook, N. P. (2003) Practical Digital Electronics, Prentice-Hall, NJ, USA.2. Fairchild Semiconductor Corporation (October 1974) CMOS Oscillators, Application Note 118, South Portland,ME, USA.3. Holdsworth, B. and Woods, C. (2002) Digital Logic Design, Newnes, Oxford, UK.4. Langholz, G., Mott, J. L. and Kandel, A. (1998) Foundations of Digital Logic Design, World Scientific Publ.Co. Inc., Singapore.5. Chen, W.-K. (2003) Logic Design, CRC Press, FL, USA.