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Function of Combinational Logic

Function of Combinational Logic. Decoders & Encoders. By Fariza EL Sharif Noorhan Abo Hanu. BCD Excess 3.

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Function of Combinational Logic

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  1. Function of Combinational Logic Decoders & Encoders By Fariza EL Sharif Noorhan Abo Hanu

  2. BCD Excess 3 is a numeral systemused on some older computers that uses a pre-specified number N as a biasing value. It is a way to represent values with a balanced number of positive and negative numbers. • The Code conversion Procedure to Excess 3

  3. Truth Table: BCD Excess 3 The Truth Table of the BCD Excess-3:

  4. Maps of BCD to Excess 3 BCD Excess 3

  5. BCD Excess 3 Logic symbol for a BCD Excess-3 : Fig. (1) BCD Excess-3

  6. WHAT IS DTMF ? • DTMFis a method of sending and receiving control information over a communications channel. • The reader is probably most familiar with DTMF tones as heard on a modern push-button telephone. Each digit on the keypad is encoded as a DTMF tone, which is then transmitted over a medium, and decoded at the receiving end. Dual tone multiple frequency signaling

  7. Application DTMF Fig. (2) application DTMF

  8. The electrical circuits

  9. Application DTMF ? Turth Table a 7-Segment Display

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