Arrange the following logic families in the order of increasing speed: CMOS, low power Schottky TTL, ECL, Schottky TTL, low power TTL.

1. ### Break Down the Problem

To arrange the logic families in order of increasing speed, we need to understand the typical speed characteristics of each family:

• CMOS
• Low Power Schottky TTL
• ECL (Emitter Coupled Logic)
• Schottky TTL
• Low Power TTL

2. ### Relevant Concepts

The speed of these logic families can be generally categorized based on their technology and switching speeds. The speed can be evaluated based on parameters like propagation delay and maximum frequency:

• CMOS: Generally slower due to higher capacitance but consumes less power.
• Low Power TTL: Slower than standard TTL due to design for lower power.
• Schottky TTL: Faster than standard TTL because it uses Schottky diodes to eliminate saturation.
• Low Power Schottky TTL: Slower than Schottky TTL but faster than low power TTL.
• ECL: The fastest among these due to its unique transistor configuration allowing rapid switching.

3. ### Analysis and Detail

Now we analyze the relative speeds:

1. CMOS: Typically has a longer propagation delay compared to others.
2. Low Power TTL: Slower due to added low power considerations.
3. Low Power Schottky TTL: Faster than low power TTL but slower than regular Schottky due to lower power operation.
4. Schottky TTL: Faster than standard TTL due to avoiding saturation.
5. ECL: Renowned for its speed, making it the fastest among these logic families.

4. ### Verify and Summarize

We have established a ranking based on the analysis. The ranking in terms of speed from slowest to fastest is verified and summarized as follows:

Final Answer

The order of increasing speed for the provided logic families is:

1. CMOS
2. Low Power TTL
3. Low Power Schottky TTL
4. Schottky TTL
5. ECL