Paper Code: ETEC 206	L          T          C
Paper: Digital Circuits & System – I	3           1           4

UNIT - I

Analog & Digital signals, AND, OR, NOT, NAND, NOR & XOR gates, Boolean algebra. Standard representation of Logical functions, K-map representation and simplification of logical functions, Don't care conditions, X-OR & X-NOR simplification of K-maps. Combinational circuits: Multiplexers, demultiplexers, Decoders & Encoders, Adders & Subtractor, Code Converters, comparators, decoder/drivers for display devices

UNIT - II

Flip Flops: S-R, J-K, D & T Flip-flops, excitation table of a flip-flop, race around condition. Sequential circuits: Shift registers, Ripple counter, Design of Synchronous counters and sequence detectors, 555 Timer and its application as mono-stable and astable multi-vibrator. Nyquist Sampling Theorem

UNIT - III

A/D and D/A converters: Binary-weighted DAC, R-2R Ladder type networks, Successive-approximation ADC, Linear-ramp ADC, Dual-slope ADC Bipolar-Transistor Characteristics, RTL and DTL circuits, TTL, ECL and CMOS Logic families.

UNIT - IV

Logic Implementations using ROM, PAL & PLA., Semiconductor Memories: Memory organization & operation, classification and characteristics of memories, RAM, ROM and content addressable memory.

TEXT BOOKS:

1. R.P. Jain, “Modern Digital Electronics”, TMH, 3rd Ed, 2004.

2. Morris Mano, “Digital Design”, PHI, 2nd Ed, 2002.

REFERENCE BOOKS:

1. R. J. Tocci, “Digital Systems”, PHI, 2000

2. Malvino and Leach, “Digital principles and applications”, TMH, 2000.

3. I. J. Nagrath, “Electronics, Analog & Digital”, PHI, 1999.

4. J. M. Yarbrough, “Digital Logic-Application and Design”, PWS Publishing, 1999.

5. B. S. Nai, “ Digital Electronics and Logic Design”, PHI, 2000.

6. Balabanian and Carlson, “Digital Logic Design Principles”, Wiley Pub., 2000.