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Unit1.
NUMBER SYSTEMS AND CODES: Radix and Radix conversions, sign, magnitude
& complement notation. Weighted and non-weighted codes, BCD codes,
self-complementing codes, cyclic codes, error detecting and correcting
codes, ASCII & EBCDIC codes. Alphanumeric codes. Fixed point and floating
point arithmetic. BCD arithmetic.
Unit2. BOOLEAN ALGEBRA AND DIGITAL LOGIC GATES: Features of Boolean
algebra, postulates of Boolean algebra, theorems of Boolean algebra.
Fundamental logic gates, derived logic gates, logic diagrams and Boolean
expressions. Converting logic diagrams to universal logic. Positive,
negative and mixed logic. MINIMIZATION TECHNIQUES: Minterm, Maxterm,
Karnaugh’s maps, simplification of logic functions with K-map, conversions
of truth tables in SOP & POS forms, incompletely specified functions,
variable mapping, Quinn- Mcklusky method.
Unit3. SWITCHING CIRCUITS AND LOGIC FAMILIES: Diode, BJT, FET as
switch. Different types of logic families: RTL, TTL, open collector TTL,
three state output logic, TTL subfamilies, MOS, CMOS, ECL IIL.
Unit4. COMBINATION SYSTEMS: Combinational logic circuit design,
Half and full adder & subtractors. Binary serial and parallel adders, BCD
adder. Binary multiplier, comparator, decoders, encoders, multiplexer,
de-multiplexer, Code converters.
Unit5. SEQUENTIAL SYSTEMS: Latches, Flip-Flop: R-S, D, J-K, T,
Master slave. Flip-flop conversions. Counters: asynchronous & synchronous
counter. Counter design, counter applications. Registers: buffer & shift
register.
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