exam

Electronics Engineering Technology Savannah State University ELET 3301K Digital Systems I Final Exam Due Date Dec 9, 2020 Name: ___________________________________________ Instructions Submit your solution on D2L as a single PDF document. Name your file as yourname-ELET3301K- Final.PDF Problem 1.0 (25 Points) Number Systems The computer monitoring system at the geothermal facility shown in figure below is receiving the following warning codes. Determine the problems that exist for each code.

a) 1010 0101 binary b) D0 hexadecimal c) 88H hexadecimal d) 026 octal

Problem 2.0 (25 Points) Relays (a) Identify the normally open and normally closed relay in the figure below: (10 Points)

(b) Specify the output voltages in the circuits below: (15 Points)

Problem 3 (25 Points) Design Design a circuit that outputs a HIGH when the binary value of ABCD (D=LSB) is >5 and <12. Your design must include the following:

a) Truth Table (5 Points) b) Not Simplified Boolean Expression (5 Points) c) Simplified Boolean Expression using K-MAP (5 Points) d) Implementation with NAND gates only (10 Points)

Problem 4.0 (25 Points) KMAP -Simplification

Implement the simplified expression using NAND gates only.