Logic Families » Exercise – 1
1. Which one of the following logic family ICs is fastest :
(a) TTL
(b) ECL
(c) CMOS
(d) DTL
2. Advanced schottky is a part of :
(a) ECL family
(b) CMOS family
(c) TTL family
(d) None of above
3. As compared to TTL, ECL has :
(a) Lower power dissipation
(b) Lower propagation delay
(c) Higher propagation delay
(d) Higher noise margin
4. Positive logic in a logic circuit is one in which :
(a) Logic 0 and 1 are represented by 0 and positive voltage respectively
(b) Logic 0 and, -1 are represented by negative and positive voltages respectively
(c) Logic 0 voltage level is higher than logic 1 voltage level
(d) Logic 0 voltage level is lower than logic 1 voltage level
5. Special handling precautions should be taken when working with MOS devices. Which of the following statements is not one of these precautions?
(a) All test equipment should be grounded.
(b) MOS devices should have their leads shorted together for shipment and storage.
(c) Never remove or insert MOS devices with the power on.
(d) Workers handling MOS devices should not have grounding straps attached to their wrists.
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