Gary Plimer 20005 Higher Technological Studies Applied Electronics (Outcome 3) G. Plimer 2005.

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Presentation transcript:

Gary Plimer Higher Technological Studies Applied Electronics (Outcome 3) G. Plimer 2005

Gary Plimer Applied Electronics (outcome 3)  NOT  AND  OR A Z A B Z A B Z Basic Logic Gates

Gary Plimer Applied Electronics (outcome 3)  NAND  NOR A B Z A B Z Basic Logic Gates  EOR A BZ

Pupil Problems 1  Applied Electronics Work Book Outcome 3, Page 6 Questions 1 to 9 bute.sch.uk/subjects/tech/ts/higher/Electronics /ASSIGNMENT3-2.htm

Combinational Logic  It is often necessary to use more than one gate in a logic circuit. In these cases, we need to analyse a Combinational Logic circuit. A B C D Z ABCDZ

Pupil Problems 2  Applied Electronics Work Book Outcome 3, Page 12 Questions 1 to 5

Nand Equivalents 1 Integrated Circuits, (IC’s) come in varying packages. The one shown below is a Quad, 2 Input, Nand IC. In industry, it is common to restrict the number of IC’s used. This reduces cost, stock levels and assembly requirements.

Nand Equivalents 2 AND OR NOT

Converting to Nands NOT =AND = Substituting NANDS Original Circuit

Pupil Problems 3  Applied Electronics Work Book Outcome 3, Page 18 Questions 1 to 4 bute.sch.uk/subjects/tech/ts/higher/Index. htm