Which one of the following logic families can be operated using supply voltage from 3V to 15 V?
CMOS
Logic Family Supply Voltage Overview
Different logic families used in digital electronics operate with varying supply voltages. Understanding these voltage requirements is crucial for designing compatible digital circuits.
Comparing Logic Family Supply Voltages
Let's compare the typical supply voltage ranges for the logic families mentioned in the options:
| Logic Family | Typical Supply Voltage (V) |
|---|---|
| TTL (Transistor-Transistor Logic) | 5V (Standard TTL families like 74xx operate around 5V. While some variations exist, 5V is the most common.) |
| ECL (Emitter-Coupled Logic) | -5.2V or -3.7V (ECL typically uses negative supply voltages and requires a stable reference voltage.) |
| PMOS (P-channel Metal-Oxide-Semiconductor) | -5V to -15V (PMOS logic uses negative supply voltages, with the substrate typically connected to the most positive potential, often ground.) |
| CMOS (Complementary Metal-Oxide-Semiconductor) | 3V to 15V (CMOS technology is known for its wide operating voltage flexibility, making it suitable for various applications requiring different voltage levels.) |
CMOS Voltage Flexibility Explained
The question asks which logic family can operate using a supply voltage from 3V to 15V. Based on the typical operating characteristics:
- TTL operates primarily at 5V.
- ECL uses negative supply voltages and has a narrower operational range.
- PMOS typically uses negative supplies.
- CMOS technology offers the broadest supply voltage range among the options provided. Many CMOS devices are designed to function reliably across voltages from 3V up to 15V, allowing for flexibility in power supply choices and compatibility with different system voltage levels.
Therefore, CMOS is the logic family capable of operating within the specified 3V to 15V supply voltage range.
Important Questions from Logic Families
Which logic family is the fastest of all logic families?
Arrange the following logic families in the order of increasing speed: CMOS, low power Schottky TTL, ECL, Schottky TTL, low power TTL, TTL :
Compare the IC logic families based on their rise time in ascending order:
(A) MECL
(B) CMOS
(C) Low power schottky TTL
(D) PECL
Choose the correct answer from the options given below:
Which of the following pair is correct?
I. RTL – Saturated bipolar logic family
II. ECL – Non-Saturated bipolar logic family
In TTL family, the Totem-pole circuit on the output is used to provide _______.
