Pertemuan:8 (Decoder - Encoder)

11/02/2013 02:14:00 PM (Basic) Digital Technique 0 Comments

In this section, the discusion is about :

• Design Procedure
• Code Converters
• Binary Decoders
– Expansion
– Circuit implementation
• Binary Encoders
• Priority Encoders

Design Procedure:
• Design of a combinational circuit is the development of a circuit from a description of its function.
• Starts with a problem specification and produces a logic diagram or set of boolean equations that represent the circuit.

Decoder:
• A combinational circuit that converts binary information from n coded inputs to a maximum 2n decoded outputs n-to- 2n decoder
• n-to-m decoder, m ≤ 2n
• Examples: BCD-to-7-segment decoder,
where n=4 and m=7

Encoder:
• An encoder is a digital circuit that performs the inverse operation of a decoder. An encoder has 2n input lines and n output lines.
• The output lines generate the binary equivalent of the input line whose value is 1.


You can download full chapter from this link:
BDT08-Decoder and Encoder