AD574 and PC bus interface circuit

Another example given in AD574 and PC bus. The figure for the AD574 converter Ul, U2 is 74LS245 bidirectional data buffer, U3 of 74 Lsoo two-input AND gate, U4 to 74LS125 tri-s

tate output gates, U5 is 74LS04 inverting gate.

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