PHY-307 Digital Electronics
Pre-requisites: PHY-103, 205, 206, 209
PART A
1. Numbers and Binary Codes
- Different number systems: Binary numbers
- Decimal numbers
- Octal numbers
- Hexadecimal numbers
- Number base conversion
- Weighted codes: The 8421 code
- Other 4-bit BCD codes
- The parity bit
- The Gray code
- Hamming code
- Error detection and correction
- The ASCII code
- Code conversion
2. Boolean Algebra and Logic Gates
- Laws and theorems of Boolean algebra
- Boolean functions
- Simplification of Boolean functions
- De Morgan’s theorems
- Digital Logic gates:
- AND gate
- OR Gate
- NOT gate
- NOR gate
- The universal building block
- XOR and XNOR gates
- TTL circuits
3. Simplifying Logic Circuits
- Minterm and maxterm
- SOP and POS circuits
- Algebraic simplification
- Map method: Truth table to Karnaugh maps
- Simplifications
- Tabulation method: Determination and selection of Prime- Implicants.
- Arithmetic Circuits
- Complements:
- The r’s and (r-1)’s complements
- Subtraction with r’s and (r-1)’s complements
- Adders:
- half-adder and Full-adder
- Binary parallel adder
- Decimal adder
- BCD adder
- Subtractors:
- Half-subtractor and
- full subtractor
- Complements:
- Binary multiplier.
4. Flip-Flops: SR Latches
- Transistor latch
- NAND and NOR latch
- Clocked SR flip-flop
- D-type flip-flop: Unclocked and clocked D flip-flop
- JK flip-flop: Edge- triggered JK flip-flop
- Jk master-slave flip-flop
- Multivibrators
PART B
5. Counters and Registers
- Ripple counter
- Design of synchronous counter,
- Parallel Counter
- Combination counter
- BCD shift registers
- Decoders: BCD- to decimal decoder
- Demultiplexers
- Encoders
- Multiplexers
6. D/A and A/D Conversion
- Variable-resistor network
- Binary ladder,
- D/A converter
- D/A accuracy and resolution
- A/D converter
- A/D accuracy and resolution
- Advanced A/D techniques
7. Memory Devices
- Semiconductor memory technologies
- Memory addressing
- ROM architecture
- Types of PROMS and EPROMs
- RAM architecture
- Static and dynamic RAM
- DRAM
- SDRAM
- Magnetic Core and bubble memory Cache memory
8. Integrated Circuit Technology
- Integrated Circuit
- IC Fabrication: Purification and preparation of silicon wafer
- Epitaxial growth
- Oxidization
- Photolithographic process
- Isolation diffusion
- Base and emitter diffusion
- Metallization
- Encapsulation
- Formation of integrated circuit elements
- Transistors, capacitors and resistors for integrated circuits
- Sheet resistance