 | Digital Teaching Aid (DED Philippinen, 86 p.) |
 |  | (introduction...) |
| | Preface |
| | Introduction |
|  | Fundamental Logic Operations - Lesson 1 |
| | Lesson Plan |
| | (introduction...) |
| | Introduction |
| | TTL circuits |
| | Logic operations |
| | Handout No. 1 |
| | Worksheet No. 1 |
| | Introduction Boolean Algebra - Lesson 2 |
| | Lesson Plan |
| | Introduction |
| | Boolean algebra |
| | Boolean equations of logic circuits |
| | NOR and NAN gates |
| | De Morgan's theorems |
| | Worksheet No. 2 |
| | Circuit Analysis and Design - Lesson 3 |
| | Lesson Plan |
| | (introduction...) |
| | Introduction |
| | Boolean laws and theorems |
| | Sum of product method |
| | Design example |
| | Handout No. 2 |
| | Worksheet No. 3 |
| | First Evaluation |
| | Karnaugh Mapping - Lesson 4 |
| | Lesson Plan |
| | (introduction...) |
| | Introduction |
| | Karnaugh map |
| | Truth table to Karnaugh map |
| | Pairs, Quads, and Octets |
| | Overlapping and Rolling |
| | Worksheet No. 4 |
| | Karnaugh Mapping II - Lesson 5 |
| | Lesson Plan |
| | (introduction...) |
| | Introduction |
| | Product of sums method |
| | Don't care conditions |
| | Worksheet No. 5 |
| | Coding - Lesson 6 |
| | Lesson Plan |
| | (introduction...) |
| | Introduction |
| | ASCII code |
| | Excess-3 code |
| | Gray code |
| | Encoder |
| | Decoder |
| | Code converter |
| | Worksheet No. 6 |
| | Flip-Flops - Lesson 7 |
| | Lesson Plan |
| | (introduction...) |
| | Introduction |
| | RS Flip-Flops |
| | D - Flip-Flop (D-FF) |
| | JK Flip-Flop (JK-FF) |
| | Worksheet No. 7 |
| | Second Evaluation |
| | Counter - Lesson 8 |
| | Lesson Plan |
| | (introduction...) |
| | Introduction |
| | Asynchronous counter |
| | Synchronous counter |
| | Seven segment indicator and decoder |
| | Worksheet No. 8 |
| | Data Processing Circuits - Lesson 9 |
| | Lesson Plan |
| | (introduction...) |
| | Introduction |
| | Multiplexer |
| | Demultiplexer |
| | Handout No. 3 |
| | Worksheet No. 9 |
| | Third Evaluation |
| | Answers to Evaluation Problems |
Worksheet No. 6
No. 1 Develop a decoder circuit for the conversion of the Gray code into the decimal system. Use a Karnaugh map to get a simplified circuit!
|
Gray code |
decimal | |||
|
d |
c |
b |
a | |
|
0 |
0 |
0 |
0 |
0 |
|
0 |
0 |
0 |
1 |
1 |
|
0 |
0 |
1 |
1 |
2 |
|
0 |
0 |
1 |
0 |
3 |
|
0 |
1 |
1 |
0 |
4 |
|
0 |
1 |
1 |
1 |
5 |
|
0 |
1 |
0 |
1 |
6 |
|
0 |
1 |
0 |
0 |
7 |
|
1 |
1 |
0 |
0 |
8 |
|
1 |
1 |
0 |
1 |
9 |
|
X |
X |
X |
X | |
|
. |
. |
. |
. | |
|
. |
. |
. |
. | |
No. 2 Develop a code converter for the conversion of the excess 3 code into the 8421 code (BCD).
Complete the truth table!
Use Karnaugh maps to get a simplified circuit!
|
Excess 3 code |
8421 code | |||||||
|
dec |
d |
c |
b |
a |
d1 |
c1 |
b1 |
a1 |
|
0 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
|
1 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
1 |
|
2 |
0 |
1 |
0 |
1 |
0 |
0 |
1 |
0 |
|
3 |
0 |
1 |
1 |
0 |
0 |
0 |
1 |
1 |
|
4 |
0 |
1 |
1 |
1 |
0 |
1 |
0 |
0 |
|
5 |
1 |
0 |
0 |
0 |
0 |
1 |
0 |
1 |
|
6 |
1 |
0 |
0 |
1 |
0 |
1 |
1 |
0 |
|
7 |
1 |
0 |
1 |
0 |
0 |
1 |
1 |
1 |
|
8 |
1 |
0 |
1 |
1 |
1 |
0 |
0 |
0 |
|
9 |
1 |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
| |
1 |
1 |
0 |
1 |
1 |
0 |
1 |
0 |
| |
1 |
1 |
1 |
0 |
1 |
0 |
1 |
1 |
| |
1 |
1 |
1 |
1 |
1 |
1 |
0 |
0 |
| |
0 |
0 |
0 |
0 |
1 |
1 |
0 |
1 |
| |
0 |
0 |
0 |
1 |
1 |
1 |
1 |
0 |
| |
0 |
0 |
1 |
0 |
1 |
1 |
1 |
1 |
The lower six rows are redundant.
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