1 / 18

Digital Electronics Electronics Technology

Digital Electronics Electronics Technology. Landon Johnson. Encoding, Decoding, and Seven-Segment Displays. Encoder/Decoder Competencies. 52. Given four different input combinations to a 10 line to 4 line encoder, the student will state the output combinations with 100% accuracy.

hoy
Download Presentation

Digital Electronics Electronics Technology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Digital Electronics Electronics Technology Landon Johnson Encoding, Decoding, and Seven-Segment Displays

  2. Encoder/Decoder Competencies 52. Given four different input combinations to a 10 line to 4 line encoder, the student will state the output combinations with 100% accuracy. 53. Given four different input combinations for a 4 line to 10 line decoder, the student will state the output combinations with 100% accuracy.

  3. Encoder/Decoder Vocabulary ENCODER- a digital circuit that produces a binary output code depending on which of its inputs are activated. DECODER- a digital circuit that converts an input binary code into a single numeric output.

  4. ENCODERS AND DECODERS ONLY ONE INPUT ACTIVATED AT A TIME BINARY CODE INPUT ONLY ONE OUTPUT ACTIVATED AT A TIME BINARY CODE OUTPUT

  5. THE 8421 BCD CODE • BCD stands for Binary-Coded Decimal. • A BCD number is a four-bit binary group that represents one of the ten decimal digits 0 through 9. Example: Decimal number 49264 9 2 6 8421 BCD coded number0100 10010010 0110

  6. 3 ELECTRONIC ENCODER - DECIMAL TO BCD BCD output Decimal input 0 0 0 0 0 1 0 1 0 1 1 1 0 0 1 1 Decimal to BCD Encoder 7 5 0 • Encoders are available in IC form. • This encoder translates from decimal input to BCD output.

  7. 10 line to 4 line Encoder

  8. 10 line to 4 line Encoder

  9. 4 line to 10 line Decoder

  10. DECODERS: BCD TO 7-SEGMENT DECODER/DRIVER Decimal output LED BCD input 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 BCD-to- 7-Segment Decoder/ Driver • Electronic decoders are available in IC form. • This decoder translates from BCD to decimal. • Decimals are shown on an 7-segment LED display. • This IC also drives the 7-segment LED display.

  11. TEST Q #5- What is the decimal output from the decoder that appears on the 7-segment display? Q #4- What is the decimal output from the decoder that appears on the 7-segment display? Q #1- What is the decimal output from the decoder that appears on the 7-segment display? Q #2- What is the decimal output from the decoder that appears on the 7-segment display? Q #3- What is the decimal output from the decoder that appears on the 7-segment display? Answer: 3 Answer: 9 Answer: 0 Answer: 6 Answer: 7 BCD input Decimal output 1 0 0 1 0 1 1 1 0 0 0 0 0 1 1 0 0 0 1 1 BCD-to- 7-Segment Decoder/ Driver ?

  12. TEST

  13. TEST

  14. TEST ANSWER THE FOLLOWING QUESTIONS WITH ONE OR MORE OF THESE WORDS: MUX, DEMUX, ENCODER, DECODER. A. Has more inputs than outputs. ENCODER, MUX B. Uses select inputs. MUX, DEMUX C. Can be used in parallel-to-serial conversion. MUX D. Produces a binary code at its output. ENCODER E. Only one of its outputs is activated at one time. DEMUX, DECODER F. Used to route input signals to one of several outputs. MUX G. Used to generate arbitrary logic functions. MUX, DEMUX H. 3 line-to-8 line or binary to octal. DECODER I. Data Selectors are also MUX.

More Related