Curioustab

Home » Digital Electronics » Logic Families and Their Characteristics

The rise time (tr) is the time it takes for a pulse to rise from its point up to its point. The fall time (tf) is the length of time it takes to fall from the to the point.

10%, 90%, 90%, 10%
90%, 10%, 10%, 90%
20%, 80%, 80%, 20%
10%, 70.7%, 70.7%, 10%

Correct Answer: 10%, 90%, 90%, 10%

← Previous Question Next Question→

More Questions from Logic Families and Their Characteristics

Ten TTL loads per TTL driver is known as:
Why is a pull-up resistor needed for an open collector gate?
If all inputs to a TTL NAND gate are low, what is the ON, OFF condition of each transistor in the circuit?
Assume that a particular IC has a supply voltage (Vcc) equal to +5 V and ICCH = 10 mA and ICCL = 23 mA. What is the power dissipation for the chip?
Fan-out is determined by taking the ________ result(s) of ________.
Why is a pull-up resistor needed when connecting TTL logic to CMOS logic?
The output current capability of a single 7400 NAND gate when HIGH is called ________.
What should be done to unused inputs on TTL gates?
The time needed for an output to change from the result of an input change is known as:
Why are the maximum value of VOL and the minimum value of VOH used to determine the noise margin rather than the typical values for these parameters?

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion