Digital Circuit Fundamentals 2 Unit 2 – Decoder and Priority Encoder
Encoders use another operating section to determine input priority (called priority detection).
Detecting more that one input activates the INHIBIT section. This section ensures that only
output bits associated with the higher input value are encoded. Lower input values are locked
out.
NEW TERMS AND WORDS
binary coded decimal - (BCD) a form of 4-bit coding representing decimal number between 9
and 0.
decoder - a circuit that generates one unique output in response to a set of input bit patterns.
base - indicates the numbering system; base 10 indicates decimal, base 2 indicates binary, and
base 16 indicates hexadecimal.
disables - turns off, deactivates, inhibits, or makes nonresponsive.
enables - turns on, activates, or makes responsive.
encoder - a circuit that generates unique output bit patterns in response to a specific input.
data pipeline - a common data path used to distribute information throughout a circuit.
EQUIPMENT REQUIRED
F.A.C.E.T. base unit
Multimeter
Oscilloscope, dual trace
DIGITAL CIRCUIT FUNDAMENTALS 2 circuit board