Digital Electronics Tutorial Sheet 5 1.* What is important about the ordering of the rows and columns in a Karnaugh map? 2.** Using a Karnaugh map, show that CBACBAABCBACA...+=+++. 3.** Read the relevant parts of the notes and text book to review “Product of Sums” and “Sum of Products” forms. Minimise the following expression for fusing SOP and POS forms. State which form is minimal in terms of the number of gates, not counting inverters. f=∑015781415,,, ,, ,with don’t cares at 2 and 10. 4.** Use a Karnaugh map to reduce each expression to a minimum SOP form: a) CDCBAX++=b) DCBADCBADCBADCBAX+++=c) DCBADCDCABDCDCBAX++++=)()(d) ))((DCCDBABAX++=e) DCDCBABAX+++=5.*** A washing machine control circuit has 4 inputs: WASH, THERMOSTAT, FULL, EMPTY and 4 outputs: HOT, COLD, MOTOR and PUMP. When they are high,
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