Logic gate - nand gate, Other Engineering

Assignment Help:

NAND Gate;

When constructing a NAND gate using transistors as the switching devices, the output often represents the 'inversion' of the "AND" gate. Figure 4 shows an example of a 2 input digital gate consisting of two NPN transistors, TR1 and TR2, which are assumed to be perfect switches. In a positive logic system, when input A and input B are both at the 0 state (0v), both transistors are biased OFF and the output will adopt the 1 state (+ 5v). If input A only is now given the 1 state, transistor TR1 is biased ON but no collector current can flow as TR2 is still OFF. Similarly, if input B only is given the 1 state then transistor TR2 is biased ON but again no current can flow as TR1 is OFF. Only when both input A and input B are at the 1 state together, with both transistors ON, will current be allowed to flow taking the output to the 0 state.

33_nand gate.png


Related Discussions:- Logic gate - nand gate

Trade-offs in communications designs, Trade-offs in Communications Designs ...

Trade-offs in Communications Designs Satellite and Deep Space Communications               - Power is expensive to generate in space and transmission distances are eno

Pressure filter - aircraft maintenance , PRESSURE FILTER The pressure o...

PRESSURE FILTER The pressure oil filter housing contains a wire-wound or mesh, Paper or felt elements and incorporates a by-pass valve. The filter housing can be drained inde

Facilty design, List three advantages and three disadvantages of open offic...

List three advantages and three disadvantages of open office spaces.

Calculating the thrust of the engine - engine performance, Calculating the ...

Calculating the thrust of the engine: When applying the above method to calculate the individual thrust loads on the various components it is assumed that the engine is static.

Keplers’s three laws of planetary motion, Expertsmind.com brings you uniqu...

Expertsmind.com brings you unique solution in electrical engineering -          Ancient people kept track of time and seasons as it affected agriculture. -          Some

Propeller balance, PROPELLER BALANCE There are two types of balance of ...

PROPELLER BALANCE There are two types of balance of importance when working with propellers: • Static Balance • Dynamic Balance Static balance is checked and corrected

Fundamentals of financial management, 4-7 DuPont and Net Income Ebersoll Mi...

4-7 DuPont and Net Income Ebersoll Mining has $6 million in sales, its ROE is 12%, and its total assets turnover is 3.2x. The company is 50% equity financed, and it has no preferr

Meer, write drawback of linear array

write drawback of linear array

Chvorinov''s rule, Q. Why is it desirable to design a casting to have direc...

Q. Why is it desirable to design a casting to have directional solidification sweeping from the extremities of the mould to riser based on Chvorinov's rule? What would be an ideal

Interlaminar fracture tests on composite materials , Generally, there are t...

Generally, there are three modes to describe different crack surface displacement in a cracked body. Mode I is opening or tensile mode where the crack surfaces move directly ap

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