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UNIT 1 :
NUMBER SYSTEMS, BASIC LOGIC GATES & BOOLEAN ALGEBRA: Binary Arithmetic
& Radix representation of different numbers. Sign & magnitude
representation, complement notation, various codes & arithmetic in
different codes & their inter conversion. Features of logic algebra,
postulates of Boolean algebra. Theorems of Boolean algebra. Boolean
function. Derived logic gates: Exclusive-OR, NAND, NOR gates, their block
diagrams and truth tables. Logic diagrams from Boolean expressions and
vica-versa. Converting logic diagrams to universal logic.
Positive, negative and mixed logic. Logic gate conversion.
UNIT 2 : DIGITAL LOGIC GATE CHARACTERISTICS: TTL logic gate
characteristics. Theory & operation of TTL NAND gate circuitry. Open
collector TTL. Three state output logic. TTL subfamilies. MOS & CMOS logic
families. Realization of logic gates in RTL, DTL, ECL, C-MOS & MOSFET.
Interfacing logic families to one another.
UNIT 3 : MINIMIZATION TECHNIQUES: Minterm, Maxterm, Karnaugh Map, K
map upto 4 variables. Simplification of logic functions with K-map,
conversion of truth tables in POS and SOP form. Incomplete specified
functions. Variable mapping. Quinn-Mc Klusky minimization techniques.
UNIT 4 : COMBINATIONAL SYSTEMS: Combinational logic circuit design,
half and full adder, subtractor. Binary serial and parallel adders. BCD
adder. Binary multiplier. Decoder: Binary to Gray decoder, BCD to decimal,
BCD to 7-segment decoder. Multiplexer, demultiplexer, encoder. Octal to
binary, BCD to excess-3 encoder. Diode switching matrix. Design of logic
circuits by multiplexers, encoders, decoders and demultiplexers.
UNIT 5 : SEQUENTIAL SYSTEMS: Latches, flip-flops, R-S, D, J-K,
Master Slave flip flops. Conversions of flip-flops. Counters :
Asynchronous (ripple), synchronous and synchronous decade counter, Modulus
counter, skipping state counter, counter design. Ring counter. Counter
applications. Registers: buffer register, shift register.
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