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System Digital Encoder dan Decoder

System Digital Encoder dan Decoder

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System Digital Encoder dan Decoder

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  1. System DigitalEncoder dan Decoder

  2. Mux/Demux Vocabulary MULTIPLEXER (aka DATA SELECTOR)- circuit that can select one of a number of inputs and pass the logic level of that input to the output. DEMULTIPLEXER (aka DATA DISTRIBUTOR)- circuit that depending on the status of its select inputs will channel its data input to one of several outputs. SELECT INPUTS (aka ADDRESS LINES)- used by the mux to determine which data inputs will be switched to the output.

  3. BASIC TWO-INPUT MULTIPLEXER

  4. FOUR-INPUT MULTIPLEXER

  5. 8-to-1 ENCODER

  6. MULTIPLEXER LOGIC DIAGRAM • Takes one of many inputs and funnels it to an output Z. • Take the selector lines convert to a decimal number and this is the input funneled to the output. • Strobe is active low enable

  7. MULTIPLEXER APPLICATIONS • DATA ROUTING • PARALLEL-TO-SERIAL CONVERSION • OPERATION SEQUENCING • IMPLEMENT LOGIC FUNCTION OF A TRUTH TABLE

  8. LOGIC FUNCTION GENERATION

  9. TEST FILL IN THE TABLE

  10. TEST FILL IN THE TABLE

  11. TEST FILL IN THE TABLE

  12. TEST FILL IN THE TABLE

  13. TEST WRITE A BOOLEAN EXPRESSION FOR THE CIRCUIT

  14. DEMULTIPLEXER 1-of-8 DECODER

  15. DEMULTIPLEXER LOGIC DIAGRAM • Logic circuit that depending on the status of its select inputs will funnel its data input to one of several data outputs. • Separate enable inputs (useful for cascading decoders) into AND gate which must be high to enable the decoder outputs.

  16. LOGIC FUNCTION GENERATION NAND- any low in gives a high out

  17. LAB 35. A SECURITY MONITORING SYSTEM

  18. TEST NAME THE CIRCUIT

  19. TEST NAME THE CIRCUIT

  20. TEST STATE THE BOOLEAN EXPRESSION

  21. TEST STATE THE BOOLEAN EXPRESSION