What are the characteristics of digital ics, Computer Engineering

Assignment Help:

What are the characteristics of digital ICs used to compute their performance?

Ans:

Characteristics of Digital Integrated Circuits

1. Speed of operation:  The Speed of operation of a digital circuit is given in terms of the propagation delay time. The input delay times and output delay times can be demonstrated as:

792_Characteristics of Digital Integrated Circuits.png

The delay times are measured in between the 50% voltage levels of input and output wave forms. Here two delay times those are t

phl, while the output goes from the high state to low state and tphl, while output goes from low state to high state.

2. Power Dissipation: It is the amount of power dissipated in an IC. It is determined through the current, ICC that this draws from the Vcc supply and is provided by Vcc x Icc. Icc is the av value of ICC [O] and ICC [1]. This is specified in mW.

3. Figure of merit: For digital IC, this is explained as the product of speed and power. This is specified in Pico joules i.e. ns x mw= pj. The low value of speed power product is required.

4. Fan Out: It is the no of the same gates that can be driven by a gate. High fan out is beneficial, as this reduces the requirement for additional drivers to drive more gates.

5. Noise Immunity: Stray electric and magnetic fields make unnecessary voltages termed as noise, on the connecting wires in between logic circuits. It may cause the voltage at the input to a logic circuit to drop below Vih or fuse above Vil and may generate unwanted operation. The circuit's capability to tolerate noise signals is termed to as the noise immunity.

909_Digital Integrated Circuits.png

6. Operating Temperature: A range of temperature wherein an IC functions properly should be identified. The accepted temperature range for consumer IC' s are from 0 to 70 degree C and for industrial applications [from -55° C to +125° C for military applications].


Related Discussions:- What are the characteristics of digital ics

Generic techniques developed - artificial intelligence, Generic Techniques ...

Generic Techniques Developed: In the pursuit of solutions to various problems in the above categories, various individual fundamental techniques have sprung up which have been

What are the advantages offered by data mining, What are the advantages off...

What are the advantages offered by data mining? Advantages offered through Data Mining are given below: a) Facilitates discovery of knowledge through massive, large data set

How two domain servers having same set of names, Does it makes sense for tw...

Does it makes sense for two domain servers to contain exactly the same set of names? Why or why not? Yes. This is very advantageous for 2-domain servers having same set of name

Define dynamic linking, Define dynamic linking.  Dynamic linking is sam...

Define dynamic linking.  Dynamic linking is same to dynamic loading, rather that loading being postponed unless execution time, linking is postponed. This feature is usually us

What is high level formatting, Q. What is High level formatting? In any...

Q. What is High level formatting? In any disk system the space at some time in use would become discarded and therefore will be free for other application. Operating system ass

What is the semiconductor memory chip, What is the Semiconductor memory chi...

What is the Semiconductor memory chip A semiconductor memory chip comprises a large number of cells organized into an array and the logic necessary to access any array in the c

Combinatorial and scheduling problems, Combinatorial and Scheduling Proble...

Combinatorial and Scheduling Problems: One class of problems is concerned with specifying optimal scheduled. A classical example is the Travelling Salesperson Problem where

What is e-brokerage, What is e-brokerage? E-brokerage is an investment ...

What is e-brokerage? E-brokerage is an investment house that permits you to buy and sell stocks and get investment information from its Web site.

calculates the area and perimeter of a rectangle, Write a program, using f...

Write a program, using functions, that calculates the area and perimeter of a rectangle whose dimensions (Length & width) are given by a user.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd