Standard Logic Devices (SLD) Questions

• Why CMOS logic is favored in modern digital design Which option best captures the primary advantages that make CMOS logic a strong all-around choice?
• CMOS low-power mechanism CMOS logic achieves low static power consumption primarily because its gates are built from:
• Definition of fanout in TTL logic In TTL logic families, the specification “ten TTL loads per TTL driver” refers to which parameter?
• IC packaging and PCB space efficiency Which integrated-circuit package style generally makes the most efficient use of printed circuit board (PCB) area?
• Key characteristics of emitter-coupled logic (ECL) Which statement best summarizes the typical features of ECL logic families?
• Standard TTL noise margin For standard TTL logic operating at 5 V, what is the typical dc noise margin (per level)?
• Interfacing logic families with different supply voltages To connect ICs that operate at different VCC levels, which solution is appropriate?
• Package identification by pin rows An integrated circuit package that has two parallel rows of connection pins is commonly called a:
• TTL output stage design – totem-pole configuration: In transistor–transistor logic (TTL) with a totem-pole output stage, how are the two output transistors intentionally operated to prevent shoot-through and minimize power dissipation while delivering fast edges to the load?
• Interfacing digital logic families: Which electrical quantities must be mutually compatible when connecting the output of one logic family to the input of another (e.g., TTL to CMOS)?
• Digital buffer characteristics: For a device used purely as a buffer/driver between logic stages, which input/output impedance combination is most desirable to avoid loading the source while strongly driving the next stage?
• Logic input thresholds (TTL example): For standard 5 V TTL-compatible inputs, what is the guaranteed range for a valid logic LOW level (VIL)?
• Digital timing parameter: The interval required for a logic gate's output to settle to a new logic level after an input change is called what?
• ECL gates are noted for their high frequency capability and small output voltage swing.
• 5400 TTL series logic chips are made to military specifications.
• CMOS circuits consume less power than TTL circuits.
• Due to the extremely low power requirements of CMOS logic circuits, any number of CMOS and TTL gates can be interconnected.
• Schottky TTL logic gates overcome the problem of saturation delay time.
• Totem pole output circuits can change states faster than open-collector output circuits.
• The term buffer/driver signifies the ability to provide low output currents to drive light loads.