CMOS
CMOS has the highest fan-out among the given logic families.

What is the difference between 74 series and 54 series?

The 74 identifies the IC as a commercial-grade member of the family. The 54 identifies the IC as a high-quality military-grade member of the family. These devices are encapsulated in exotic packages, can use supplies within the limit +4.5 V to +5.5 V, and can operate over the temperature range -55° C to +125° C.

What are the differences between the 74HC family and the 4000 series CMOS ICs?

The difference depends on your system definition. On the one hand, 74HC operates over a limited voltage range, with 6 volts specified as the maximum supply voltage. The CD4000 series, on the other hand, is rated to a maximum of 18 volts, so it may well be easier to use the CD4000 series in a battery-operated system.

Which is fastest logic family?

Emitter-coupled logic (ECL)
Emitter-coupled logic (ECL) is a BJT-based logic family which is generally considered as the fastest logic available. ECL achieves its high-speed operation by employing a relatively small voltage swing and preventing the transistors from entering the saturation region.

Which logic family has worst noise margin?

CMOS has the largest Noise Margin and ECL is having Poor Noise Margin. TTL outputs are typically restricted to narrower limits, between 0 V and 0.4 V for a “LOW” and between 2.4 V and Vcc for a “HIGH”, providing at least 0.4 V of noise immunity.

What is 74HC series?

The 74HC family of logic devices are high speed, low power devices that use CMOS circuitry. The devices are pin compatible with many existing devices such as the 74TTL, 74STTL and 4000 series.

What is the difference between 74LS and 74HC?

difference between 74ls 74hc The 74LS is Transistor to Transistor logic. Uses Shottky transistors to reduce the stored charge and get higher switching speeds then with conventional bipolar transistors. The 74HC uses MOSFET technology. Therefore can operate with wider variety of voltages.

Which of the following logic is the fastest?

ECL
Emitter-coupled-logic (ECL) is a BJT logic family that is generally considered the fastest logic available.

Which family has the better noise margin?

Logic Family Noise Margin

What is the disadvantage of RTL?

The disadvantage of RTL is its high power dissipation when the transistor is switched on, by current flowing in the collector and base resistors. This requires that more current be supplied to and heat be removed from RTL circuits.

Which of the following logic family have best noise immunity?

Which of the following logic families has the highest noise immunity?…Exercise :: Digital Computer Electronics – Section 1.

What is the 74HC family of logic devices?

The 74HC family of logic devices are high speed, low power devices that use CMOS circuitry. The devices are pin compatible with many existing devices such as the 74TTL, 74STTL and 4000 series. The M74HC590 is an high speed CMOS 8-BIT BINARY COUNTER REGISTER (3 STATE) fabricated with silicon gate C 2 MOS technology.

What is the difference between the 74HC and the 4000 series?

The 74HC family has High-speed CMOS circuitry, combining the speed of TTL with the very low power consumption of the 4000 series. They are CMOS chips with the same pin arrangements as the older 74LS family.

What is 74HCT (high speed CMOS)?

Texas Instruments’ 74HCT (high speed CMOS) logic family delivers low power and low noise at a low price. The HCT family offers TTL-compatible inputs.

What is the difference between 74s and 74LS?

The 74S family, using Schottky circuitry, uses more power than the 74, but is faster. The 74LS family of ICs is a lower-power version of the 74S family, with slightly higher speed but lower power dissipation than the original 74 family; it became the most popular variant once it was widely available.