Why was CMOS devices be handled with care?

Why was CMOS devices be handled with care?

Correct Answer: These devices use Schottky transistors and diodes to prevent them from going into saturation; this results in faster turn-on and turn-off times, which translates into higher frequency operation.

Which of the following logic family has the shortest propagation delay?

Among the given options, TTL has the least propagation delay.

Can a 74hcmos logic gate directly connect to a 74alsttl gate?

Correct Answer: They are simply the inverse of each other.

What is the range of invalid TTL output voltage?

10. What is the range of invalid TTL output voltage?…Discussion :: Logic Families and Their Characteristics – General Questions (Q. No. 10)

What should be done to unused inputs on TTL gates?

What should be done to unused inputs on TTL gates? They should be left disconnected so as not to produce a load on any of the other circuits and to minimize power loading on the voltage source. All unused gates should be connected together and tied to V through a 1 k resistor.

What is the major advantage of ECL logic?

A major advantage of ECL is that the current-steering behavior of the input stage (i.e., Q1 and Q2) does not cause disturbances in the way that CMOS switching does. However, this noise performance is achieved at the cost of burning more static power.

What must be done to interface TTL to CMOS?

7. What must be done to interface TTL to CMOS? Explanation: To interface TTL to CMOS a pull-up resistor must be used between the TTL output-CMOS input node and Vcc. A pull-up resistor is used to avoid the floating state on the input node of the CMOS, thus using a small amount of current.

Why is the fan-out of CMOS gates frequency dependent Mcq?

Why is the fan-out of CMOS gates frequency dependent? The input gates of the FETs are predominantly capacitive, and as the signal frequency increases the capacitive loading also increases, thereby limiting the number of loads that may be attached to the output of the driving gate.

What is the difference between 54XX and 74XX series?

What is the difference between the 54XX and 74XX series of TTL logic gates? 54XX is faster. 54XX is slower. 54XX has a wider power supply and expanded temperature range.

What is unique about TTL devices such as the 74XX?

What is unique about TTL devices such as the 74SXX? These devices use Schottky transistors and diodes to prevent them from going into saturation; this results in faster turn-on and turn-off times, which translates into higher frequency operation.

Which family of devices has the characteristic of preventing situation during operation?

Answer is “ECL”