Tronic5 Flashcards
Correct Boolean expression for circuit
Y=C+(A*B)
What is deMorgan equivalent expression
Y=Ā*B
To turn output display number 2 what status
AB=10
Principal of encoding and decoding
Encoders change letters
The clock frequency for j-k flip flop is 10khz
5khz
Which multivibrator can be called free running
Astable multivibrator
Multivibrator one-shot
Monostable multivibrator
Formal name for flip flop
Bistable multivibrator
Maintain 2 second pulse duration for monostable 15k ohm
122
The decade counter, highest can count
Counts to 9
Why necessary to have clear input on counter
To reset and start again
Multiplexer is equivalent to a rotary Selector switch
True
Advantages of IC’s over discrete circuits
Cost less
Less power
Fast switch
Reliability
Limitations of ic’s
Low current levels
IC’s used for calculators
Digital logic
In a dual in line chip the identifier terminal is the
Lowest
TTL logic family uses
BJT
CMOS uses
FET
Which gate require unused terminal connected to low input
OR and NOR
On logic probe what does green light indicate
Gate has a low
What quantities can oscilloscope measure
Voltage and frequency
When logic probe selector switch is on CMOS and light is green
Supply voltage at 30%
Logic probe on CMOS and red light is on
Supply voltage at 70%
What does CMOS stand for
Metal oxide semiconductor.
