STLD
PART1 Mid-1 Syllabus UNIT-1: REVIEW OF NUMBER SYSTEMS and CODES: Representation of numbers of different radix, conversion from one radix to another radix, r-1’s compliments and r’s compliments of signed members. Gray code ,4-bit codes; BCD, Excess-3, 2421, 84-2-1 code etc. Error detection & correction codes: parity checking, even parity, odd parity, Hamming code. BOOLEAN THEOREMS AND LOGIC OPERATIONS : Boolean theorems, principle of complementation & duality, De-Morgan’s theorems. Logic operations; Basic logic operations -NOT, OR, AND, Universal Logic operations, EX-OR, EX- NOR operations. Standard SOP and POS Forms, NAND-NAND and NOR-NOR realizations, Realization of three level logic circuits. Study the pin diagram and obtain truth table for the following relevant ICs 7400,7402,7404,7408,7432,7486. UNIT-2: MINIMIZATION TECHNIQUES: Minimization and realization of switching functions using Boolean theorems, K-Map (up to 6 variables) and tabular met...