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Given a 64 8 ROM chip with an enable input, show the external connections necessary to construct a 256 8 ROM with four chips and a decoder.
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Specify the size of a ROM (number of words and number of bits per word) the will accommodate the truth table for the following combinational circuit components:
(a) a binary multiplier that multiplies two 4-bit binary words,
(b) a 4-bit adder-subtractor,
© a quadruple two-to-one-line multiplexer with common select and enable inputs, and
(d) a BCD-to-seven-segment decoder with an enable input.
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List the PLA programming table for the BCD-mctss-3-code converter whose Boolean functions are simplified in Fig. 4.3.