- A binary decoder is that sort of combinational logic that does the conversion of binary a(n inputs) into maximum 2^n outputs.
- More frequently implemented as a standalone circuited IC or as an internal part of a multiple IC’s.
One variant of this BCD is the BCD to seven segment decoder. The output will be the corresponding decimal digits 0-9 displayed on the screen.
EXAMPLES OF BCD DECODER IN EMBEDDED SYSTEMS:
A 3 TO 8 line decoder:
- It activates one of the eight output bits 0 to 7.
A BCD to decimal decoder:
- It has has ten output bits.
- All the output signals are frozen when a non decimal value is inputted to the decoder.
- It is a 1-n binary decoder used to divert a input to one of it’s n outputs whilst keeping the other output signals inactive.
- Code translators vary where multiple output bits may be active at the same time.
- An perfect example of this is displaying the digit eight on seven segment via BCD to seven segment decoder.
- In this unique case all seven segments are lit up (high signal) when the corresponding single input of 0100 is given to the BCD decoder.