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Digital Electronics: Principles, Devices and Applications

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310 <strong>Digital</strong> <strong>Electronics</strong>A B C D EHard-wired AND-array012345678910111213141516171819202122232425262728293031ProgrammableOR-arrayY1 Y2 Y3 Y4Figure 9.9Internal architecture of a 32 × 4 PROM.

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