Memory Basics Digital Logic Design Instructor: Kasım Sinan YILDIRIM.
Revision02 Digital Logic Basics
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Transcript of Revision02 Digital Logic Basics
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Digital Logic Basics R2
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TTL & CMOS
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TTL versus CMOSCMOS to TTL
When connecting CMOS gates to TTL
Voltage YES
Current NO
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Fundamental Logic GatesOR Gate
Symbol Test Circuit
Timing Diagram Truth Table
C=A+BBoolean Ex ression4
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Fundamental Logic GatesAND Gate
Symbol Test Circuit
Timing Diagram Truth Table
C=A . BBoolean Expression5
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Fundamental Logic GatesXOR Gate
Symbol Test Circuit
Timing Diagram Truth Table
C=A
BBoolean Expression6
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Fundamental Logic GatesNOT Gate
Symbol Test Circuit
Timing Diagram Truth Table
B=ABoolean Expression7
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Fundamental Logic GatesNAND & NOR Gates
Symbols and Equivalent Circuits
B=A.B B=A+BBoolean Expression Boolean Expression
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Fundamental Logic GatesNAND & NOR Gate
Truth Tables
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Combinatorial Logic
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Parity Generation
8-bit Even Parity Generation.
A0A1A2
A3A4A5A6A7PB
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Parity Check
8-bit Even Parity Check.
PC
PC
PBEC
0 Data OK1 Error Occurred
EC
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Decoders and Encoders
Z0Z1
AB
Z0
Z1
Z2Z3
Truth TableTruth Table
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Multiplexers
Truth Table
SymbolEquivalent Logic Circuit
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Demultiplexers
Truth Table
SymbolEquivalent Logic Circuit
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Flip-Flops and RegistersRS Latch
Equivalent Logic Circuit
Symbol
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Flip-Flops and RegistersRS Latch
Timing Diagram
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Flip-Flops and RegistersGated Latches
SymbolEquivalent Logic Circuit
Truth Table18
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Flip-Flops and RegistersD-FlipFlops
SymbolEquivalent Logic Circuit
Truth Table19
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Flip-Flops and RegistersD-FlipFlops
Timing Diagram
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Flip-Flops and RegistersJK-FlipFlops
SymbolEquivalent Logic Circuit
Truth Table21
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Flip-Flops and RegistersJK-FlipFlops
Timing Diagram
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Counters
Timing Diagram
Output
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Counters
Equivalent Circuit of a 2-bit Counter
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How Hardware Engineers
Dene Digital Designs
Hardware Denition Languages VHDL Verilog
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