Assignment title: Management
TASK 1: LO3.1
a) Using Manufacturer's datasheets complete a table using Nominal values for the following logic families: LS TTL, ALS TTL, CMOS, HCMOS. (Include excerpts from datasheet in appendix)
b) Briefly explain the different types of scales of integration: SSI, MSI, LSI, VLSI. (one sentence each)
c) Briefly explain the different types of programmable devices: PROM, PAL, PLA. (one-two sentances)
TASK 2: (LO3.2 & LO3.3)
You are to design a 3-bit counter with outputs Q0, Q1, Q2, where Q0 is the least significant bit.
The sequence 0, 2, 3, 5, 7, 6, 4, 0, 2 … is generated:
010 (2)
011 (3)
101 (5)
111 (7)
110 (6)
100 (4)
000 (0)
Then repeat
Part 1
Design the circuit. (Use any type of flip-flops eg JK T or D, and any gates)
Include truth tables and Karnaugh maps in your answer
Part 2
Using circuit simulation software, draw a circuit diagram from Task 2, Part 1 and simulate its operation.
Demonstrate the circuit operation to your tutor.
Part 3
Design a circuit using only NAND gates, whose output goes HIGH when its inputs are: A is high and B is low and either input C or input D is also HIGH and make a sketch. Derive a Boolean equation that describes the performance of the required circuit.
WITNESS STATEMENT ref HNDDADC3
Learner name:
Qualification: HND Electrical & Electronic Engineering
Unit number & title: Unit 117 Digital and Analogue Devices and Circuits
Description of activity undertaken (please be as specific as possible)
TASK 2: (LO3.2A & LO3.3A)
Part 2
Using circuit simulation software, draw the circuit diagram from Task 2, Part 2 and simulate its operation.
TASK 3: (LO3.2B & LO3.3B)
Part 2
A. Using a 'Logic Tutor' design and construct the circuit using the output connected to a LED or Logic-probe, and produce a four-variable truth table and apply all combinations of input variables to the circuit and each time note the logical state of the output.
Assessment & grading criteria (for which the activity provides evidence)
LO3.2 Design and construct combinational and sequential digital electronic circuits using logic devices
LO3.3 Test digital electronic circuits
How the activity meets the requirements of the assessment and grading criteria, including how and where the activity took place
Successful operation of practical circuits demonstrated to tutor in the electronics lab.
Witness name: Job role:
Witness signature: Date:
Learner name:
Learner signature: Date:
Assessor name:
Assessor signature: Date:
HND ASSIGNMENT EVIDENCE AND FEEDBACK
Learning
Outcome Evidence in Report
(Student) Location
(Student) Assessor
Comments Referred Achieved
LO3.1
LO3.2
LO3.3
Merit
M1
M2
Distinction
D2
S