MODULE 1

Number Systems and Codes: Binary, Octal and hexadecimal conversions- ASCII code, Excess -3 code, Gray code, BCD, Error detection codes-Parity method.

Signed numbers- representation, addition and subtraction,Fixed point and floating-point representation.

Logic gates, Universal gates, TTL and CMOS logic families-Internal diagram of TTL NAND gate and CMOS NOR gate. Comparison of CMOS and TTL performance.

MODULE 2

Boolean Laws and theorems, Sum of Products method, Product of Sum method – K map representation and simplification(up to four variables) - Pairs, Quads, Octets, Don’t care conditions.

Combinational circuits: Adders -Full adder and half adder, Subtractors- halfsubtractor and fullsubtractor, 4 bit parallel binary adder/subtractor, Carry Look ahead adders.

MODULE 3

Comparators, Parity generators and checkers, Encoders, Decoders, , BCD to seven segment decoder, Code converters, Multiplexers, Demultiplexers, Architecture of Arithmetic Logic Units (Block schematic only).

MODULE 4

'Flip-Flops, SR, JK, D and T flip-flops, JK Master Slave Flip-flop, Preset and clear inputs, Conversion of flip-flops.

Registers -SISO, SIPO, PISO, PIPO.

Up/Down Counters: Asynchronous Counters – Modulus of a counter – Mod-N counters Ring counter, Johnson Counter

Synchronous counters,Design of Synchronous counters.

MODULE 5

State Machines: State transition diagram, Moore and Mealy Machines

Digital to Analog converter –Specifications, Weighted resistor type, R-2R Ladder type.Analog to Digital Converter – Specifications, Flash type, Successive approximation type.

Programmable Logic Devices - PAL, PLA, FPGA (Introduction and basic concepts only) Introduction to Verilog, Implementation of AND, OR, half adder and full adder.

Note: Course assignments may be given in Verilog programming