Course Code: EET206
Course Name: Digital Electronics
Course Objectives:
To impart knowledge about digital logic and to gain the ability to design various digital circuits
Course Outcomes:
After the completion of the course the student will be able to:
CO 1: Identify various number systems, binary codes and formulate digital functions using Boolean algebra.
CO 2: Design and implement combinational logic circuits.
CO 3: Design and implement sequential logic circuits.
CO 4: Compare the operation of various analog to digital and digital to analog conversion circuits.
CO 5: Explain the basic concepts of programmable logic devices and VHDL
Curriculum
- 5 Sections
- 34 Lessons
- 10 Weeks
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- MODULE 1Number 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.9
- MODULE 2Boolean 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- half subtractor and full subtractor, 4 bit parallel binary adder/subtractor, Carry Look ahead adders.9
- MODULE 3Comparators, Parity generators and checkers, Encoders, Decoders, , BCD to seven segment decoder, Code converters, Multiplexers, Demultiplexers, Architecture of Arithmetic Logic Units (Block schematic only).5
- MODULE 4Flip-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.6
- MODULE 5State 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 programming5
