74HCT Memory bank 0 RD RD - 138 E3 Memory bank 1 WR WR O Memory bank 2 IO/M q E2 Memory bank 3 A15 4 b Memory bank 4 8085A microprocessor A14 A2 Memory bank 5 A13 A1 Memory bank 6- Address lines A12...



In the diagram below, the chip on the right hand side, the 74HCT138, is provided with address information from the microprocessor and then activates one of its output lines to select a memory bank.  The 74HCT138 is






A multiplexer



A demultiplexer



An encoder



A decoder



A comparator



74HCT<br>Memory bank 0<br>RD<br>RD -<br>138<br>E3<br>Memory bank 1<br>WR<br>WR O<br>Memory bank 2<br>IO/M<br>q E2<br>Memory bank 3<br>A15<br>4 b<br>Memory bank 4<br>8085A<br>microprocessor<br>A14<br>A2<br>Memory bank 5<br>A13<br>A1<br>Memory bank 6-<br>Address<br>lines<br>A12<br>Ao<br>Memory bank 7<br>A11<br>То<br>memory<br>ICs<br>Ao<br>

Extracted text: 74HCT Memory bank 0 RD RD - 138 E3 Memory bank 1 WR WR O Memory bank 2 IO/M q E2 Memory bank 3 A15 4 b Memory bank 4 8085A microprocessor A14 A2 Memory bank 5 A13 A1 Memory bank 6- Address lines A12 Ao Memory bank 7 A11 То memory ICs Ao

Jun 02, 2022
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