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- Question
In order to get a HIGH or a LOW output from an open-collector gate, an external _________ must be connected between +VCC and the collector.
Options- A. pull-down resistor
- B. pull-up resistor
- C. diode
- D. buffer
- Correct Answer
- pull-up resistor
- 1. Large-scale integration (LSI) ICs contain between ______ and _______ interconnected components.
Options- A. 15,000, 150,000
- B. 1,500, 15,000
- C. 180, 1,000
- D. 180, 1,500 Discuss
- 2. The output current capability of a single 7400 NAND gate when HIGH is called _____________.
Options- A. source current
- B. sink current
- C. IOH
- D. source current or IOH Discuss
- 3. A three-state output TTL can have three possible outputs: LOW, HIGH, or FLOATING.
Options- A. True
- B. False Discuss
- 4. Integrated-injection logic offers high component density and is easier to fabricate than TTL.
Options- A. True
- B. False Discuss
- 5. The TTL HIGH level source current is higher than the LOW level sinking current.
Options- A. True
- B. False Discuss
- 6. One example of the use of a Schmitt trigger is as a(n) _____
Options- A. astable oscillator
- B. transition pulse generator
- C. pulse shaper
- D. buffer Discuss
- 7. An undefined state, neither high nor low, is called _________.
Options- A. don't care
- B. floating
- C. minimum state
- D. noise Discuss
- 8. PMOS and NMOS ____________________________.
Options- A. represent MOSFET devices utilizing either P-channel or N-channel devices exclusively within a given gate
- B. are enhancement type CMOS devices used to produce a series of high-speed logic known as 74HC
- C. represent positive and negative MOS type devices that can be operated from differential power supplies and are compatible with operational amplifiers
- D. none of the above Discuss
- 9. The number of inputs that a gate output can drive without possible logic errors is the _______.
Options- A. propagation delay
- B. noise margin
- C. speed-power product
- D. fanout Discuss
- 10. When the output of a standard TTL gate is HIGH, it can ___________________.
Options- A. sink 16 mA of current from the attached input gates
- B. source 400 µA of current to no more than 10 attached gates
- C. source 16 mA of current to no more than 10 attached gates
- D. sink a maximum of 400 µA from no more than 10 load gates Discuss
Standard Logic Devices (SLD) problems
Search Results
Correct Answer: 1,500, 15,000
Correct Answer: source current
Correct Answer: False
Correct Answer: True
Correct Answer: False
Correct Answer: pulse shaper
Correct Answer: floating
Correct Answer: represent MOSFET devices utilizing either P-channel or N-channel devices exclusively within a given gate
Correct Answer: fanout
Correct Answer: source 400 µA of current to no more than 10 attached gates
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