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Can different logic families be connected to each other?
While you can, to a large extent, connect up logic gates of a given family on a single board just by following some quite simple rules, if you want to interface between different logic families, or use logic gates to drive external circuitry, or conversely use external circuitry to provide inputs to logic gates, you …
Can different logic families be connected to each other like ICs within a logic family can?
Making direct connections between ICs of a single family or sub family is usually very simple. ICs of different families can sometimes also be directly connected together, but may require some extra circuitry at the interface of the two IC families to maintain compatibility.
Which logic family has the lowest switching speed?
The logic family with the lowest power dissipation is
- TTL.
- DTL.
- CMOS.
- ECL.
How to troubleshoot a logic gate in a circuit?
Students need to be able to recognize these logic gate types at a glance, or else they will have difficulty analyzing circuits that use them. Identify at least two faults in this simple logic gate circuit that could cause its output to fail in the “low” logic state: Be sure to explain why the proposed faults would cause the output to fail low.
Which is more important in a logic circuit?
Static control principles and logic function terminology represent a radical change from conventional relay circuitry. The more important logic circuits are “AND― units, “OR― units, “NOT― units, “NOT AND― units, “NOT OR― units, “MEMORY― units, and “TIME DELAY― units.
Is the fanout of one logic family the same as another?
The fanout of one logic family does not mean it will be the same if you try to interface it to a different logic family. One of the nice things about 4000 series logic is that the input impedance of the gates are so high, that you can drive a LOT of them with very little current.
Can you connect two outputs to an IC when not powered up?
However, there is a logic family that is specifically designed so that you can apply voltage to the outputs even when the IC is not powered up. The inputs and outputs will not be damaged, and will maintain high impedance until VCC comes up. The other problem with connecting outputs together has nothing to do with separate power domains.