What is tri-state logic, Computer Engineering

Assignment Help:

What is Tri-state logic ?

Ans. Tri-state Logic:

In common logic circuits, there are two states of the output, as LOW and HIGH. If the output is not in the LOW state, this is absolutely in the other state that is HIGH. Likewise, if the output is not into the HIGH state, this is certainly in the LOW state. In complicated digital systems like microprocessors and microcomputers, a number of gate outputs might be essential to be linked to a common line which is referred to as a bus that in turn may be essential to drive a number of gate inputs.

While a number of gate outputs are connected to the bus, Totem pole TTL outputs leads to heating of the ICs that may find damaged and Open-collector TTL outputs causes the difficulties of loading and speed of operation.  To overcome these problems, as well as low impedance outputs 0 and 1, there is a third state termed as the High-impedance state. These logic circuits wherein the output can have three states are termed as tri-state logic.

In the Tri-state Logic, as well as low impedance outputs 0 and 1, there is a third state termed as the High-impedance state. While the gate is disabled, this is in the third state.


Related Discussions:- What is tri-state logic

What is access latency and rotation speed, Q. What is Access latency and Ro...

Q. What is Access latency and Rotation Speed? Access latency: A disk access basically moves the arm to selected cylinder and waits for rotational latency that may take less t

Give examples of different parameter-passing mechanisms, Explain different ...

Explain different parameter passing mechanisms to a function with the help of example? The different parameter-passing mechanisms are given below: 1.   Call by value 2.

Payroll pc, Purpose: Payroll processing and storage for the client database...

Purpose: Payroll processing and storage for the client database (accessed from the Reception-PCover the network),word processing (reports etc.) and spreadsheets. Software: . • W

What is basic working of modem, Q. What is basic working of Modem? A mo...

Q. What is basic working of Modem? A modem (modulator/demodulator) is an electronic device that takes digital data as a serial stream of bits and produces a modulated carrier s

What is ram bus technology, What is RAM Bus technology? The key feature...

What is RAM Bus technology? The key feature of RAM bus technology is a fast signalling method used to transfer information among chips. Instead of using signals that have volta

Work systems framework - information system, The Work Systems Framework - I...

The Work Systems Framework - Information System Adler writing in 1992 used the phrase 'stumbling backwards into the future' to describe the neglect organisations at that time

State about the data glove, State about the Data Glove  Data glove is u...

State about the Data Glove  Data glove is used to grasp a "virtual" object. The glove is constructed with a series of sensors that detect hand and finger motions. Electromagnet

Salient features of direct addressing mode, Q. Salient features of direct a...

Q. Salient features of direct addressing mode? A number of salient points about this technique are: This scheme offers a limited address space since if address field has

Uneven load distribution in parallel computers, Q. Uneven Load Distribution...

Q. Uneven Load Distribution in parallel computers? In parallel computers the problem is split in sub-problems in addition is assigned for computation to several processors howe

Using which ARQ, Using               ARQ, a sending modem must wait for a ...

Using               ARQ, a sending modem must wait for a return ACK for each sent block before sending the next block. (A)  discrete                                      (B)

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