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

What is meant by refreshing of the screen, What is meant by refreshing of t...

What is meant by refreshing of the screen?  Some method is required for maintaining the picture on the screen. Refreshing of screen is completed by keeping the phosphorus glowi

Ia-32 support, In order to support IA-32, the Itanium can switch into 32-bi...

In order to support IA-32, the Itanium can switch into 32-bit mode with special jump escape instructions. The IA-32 instructions have been mapped to the Itanium's functional units.

Explain file transfer protocol, Explain File Transfer Protocol . FTP is ...

Explain File Transfer Protocol . FTP is utilized to exchange files among computer accounts, to transfer files among an account and a desktop computer (upload) or to access softw

A full binary tree with ''n'' non-leaf nodes, A full binary tree with 'n' n...

A full binary tree with 'n' non-leaf nodes have  2n+l nodes.

Explain web service - .net component, Can you give an example of when it wo...

Can you give an example of when it would be appropriate to use a web service as opposed to a non-serviced .NET component? Services which help in stock trading by giving analysi

Mention the two subsystem relationship, Mention the two subsystem relations...

Mention the two subsystem relationship. The relationship among two subsystems can be: Client-server Peer-peer

What is the purpose of iop, What is the purpose of IOP. The purpose of ...

What is the purpose of IOP. The purpose of IOP is to given an independent path way for transfer of information among external and internal memory.

Pulse train, brief explanation on pulse train

brief explanation on pulse train

What do you mean by resolution, Q. What do you mean by Resolution? Reso...

Q. What do you mean by Resolution? Resolution is parameter which defines possible sharpness or clarity of a video image.  Resolution is defined as number of pixels which make u

Subtract the numbers using 1's complements, Subtraction 11001-10110 using 1...

Subtraction 11001-10110 using 1's complement Ans. 11001 - 10110 01001 is 1' s Compliment of 10110, so     1 1 0 0 1 +  0 1 0 0 1 ------------------    1 0 0 0 1 0    Add 1

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