SKEU/SEEU 1212

Digital Logic

Chapter 1: Introduction (1 hours)

Differences of analog and digital. Advantage/disadvantage of digital. Example systems.

Chapter 2: Number Systems& Digital Codes (5 hours)

Conversions between number systems: decimal, binary, hexadecimal, octal.

Binary codes: BCD, Gray. Alphanumeric: ASCII, Unicode.

Binary arithmetic: +, -, x, /

Chapter 3: Gates and Boolean Algebra (4 hours)

Logic gates. Boolean algebra. Conversion of equations <--> circuits.

Boolean theorems. Algebraic simplifications.

Chapter 4: Combinational Logic Networks (5 hours)

Minterms, maxterms, canonical SOP and POS.

Logic simplification using Karnaugh maps, Gate transformations and DeMorgan equivalent circuits.

Chapter 5: Combinational MSI (5 hours)

Multiplexers: concepts, devices (74x153 and 74x151), expansion.

Decoders/code converters: concepts, devices (74x138, 74x139, 74x47), expansion.

Implementations of Boolean functions using multiplexers and decoders

Encoders: concepts, devices (74x148 and 74x147).

Adders: half adder, full adder, ripple adder, device (74x283).

Chapter 6: Latches and flip-flops (4 hours)

Sequential vs combinational circuits. SR latches.

Gated SR latch, Gated D latch. D flip flop, T flip flop and JK flip flop.

Chapter 7: Sequential MSI (4 hours)

Synchronous and asynchronous counters.

74x293 and 74x163 devices: basic usage and generating custom counting sequences.