E6C: Integrated circuits: TTL digital integrated circuits; CMOS digital integrated circuits; gates
E6C01:
What is the recommended power supply voltage for TTL series integrated circuits?
5 volts
12 volts
1.5 volts
13.6 volts
E6C02:
What logic state do the inputs of a TTL device assume if they are left open?
A logic-high state
A logic-low state
The device becomes randomized and will not provide consistent high or low-logic states
Open inputs on a TTL device are ignored
E6C03:
What level of input voltage is a logic "high" in a TTL device operating with a positive 5-volt power supply?
2.0 to 5.5 volts
1.5 to 3.0 volts
1.0 to 1.5 volts
-5.0 to -2.0 volts
E6C04:
What level of input voltage is a logic "low" in a TTL device operating with a positive 5-volt power-supply?
0.0 to 0.8 volts
-2.0 to -5.5 volts
2.0 to 5.5 volts
-0.8 to 0.4 volts
E6C05:
Which of the following is an advantage of CMOS logic devices over TTL devices?
Lower power consumption
Differential output capability
Lower distortion
Immune to damage from static discharge
E6C06:
Why do CMOS digital integrated circuits have high immunity to noise on the input signal or power supply?
The input switching threshold is about one-half the power supply voltage
Larger bypass capacitors are used in CMOS circuit design
The input switching threshold is about two times the power supply voltage
Input signals are stronger
E6C07:
In Figure E6-5, what is the schematic symbol for an AND gate?
1
2
3
4
E6C08:
In Figure E6-5, what is the schematic symbol for a NAND gate?
2
1
3
4
E6C09:
In Figure E6-5, what is the schematic symbol for an OR gate?
3
2
4
6
E6C10:
In Figure E6-5, what is the schematic symbol for a NOR gate?
4
1
2
3
E6C11:
In Figure E6-5, what is the schematic symbol for the NOT operation (inverter)?
5
2
4
6
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