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CD4042 PDF

The CD quad clocked “D” latch is a monolithic complementary MOS (CMOS) integrated circuit constructed with P- and N-channel enhancement mode. Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise . CD Datasheet, CD Quad Clocked D Latch Datasheet, buy CD

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Get Our Weekly Newsletter! When Polarity set to High, on giving high pulse the output waveform will rise when the clock pulse is in falling state. You thus carry out following connections with the pins of entry of the CD The connections of the CD that we have just described are easily controllable on the practical diagram of cf4042 figure a like on the electric diagram of the figure b.

Therefore, if for example the Q1 exit is on the level Lexit 1 will be on the level H ; it is the same for Q2 and 2, Q3 and 3, Q4 and 4. You note this time that the situation was reversed vd4042 when the C1 entry is on the level Lthe circuit is insensitive with the changes of levels H and L which appear on the entries. The truth table of the IC is given below:.

With this test, you noted that c4042 each exit of the integrated circuit in question, you find the level present on the corresponding entry. To contact the author. CD has four flip-flop inside it, each strobe by a common clock.

There are then two entries of validation C1 and C2 communes with the four rockers. Skip to main content. These two entries have a function similar to the entry C of rocker R.

CD – CD Quad Clocked D Latch

We can also change the rise and fall time of Output by setting Polarity terminal. Return to the synopsis. Click here for the following lesson or in the synopsis envisaged to this end.

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Return to the synopsis To contact the author Low of page. Being given the complexity of the circuit, the electric diagram as you can observe it is simply dc4042 up by a rectangle from which the connections leave to the various pins.

Dynamic page of welcome. Static page of welcome. cx4042

CD4042 – Quad Latch

Polarity changes the rising and fall time of the Output for understanding this see the waveform below:. It has four Data input pins, each of them have two output inverting and non-inverting. You can understand the concept of using the polarity by the waveform below:. With the handling which will follow, you will check the operation of the integrated circuit CD container four circuits latch asynchronous of type D.

We can control the Output from any of the Four Switches preset in the circuit. Form of the perso pages. Using these last observations, you can supplement the table of operation of the CD which is thus presented as shown in the figure In this circuit, we are using only one Flip-flop of the IC. As the relay triggered the bulb or light turns ON and remain in ON state until the switch is released.

This is the multi-switch circuit which is taking input from the Data pin D0. If the polarity set to Low or zeroby giving high to input, the output waveform will rise when the clock pulse get rise.

Electronic forum and Poem. Forms maths Geometry Physics 1. High of page Preceding page Following page. The rocker D used in practice preceding can function as synchronous latch. Top menu About Us Advertise. Electronic forum and Infos.

When Polarity set to Low, on giving high pulse the output waveform will rise when the clock pulse is in rising state. By taking account of the dc4042 observations, it is possible to write the first part of the table of operation of the integrated circuit CD deferred in figure 14, and that one summarizes as follows: Now, the circuit given below shows that how we can use CD IC for making an electronic circuit.

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After you to be thus ensured that the assembly carried out corresponds to the electric diagram of the figure b, begin the experiment by conforming you to the following indications. There are four Flip-flops present inside IC, each strobe by a common clock.

Next Article Timer IC. Observe the LEDyou note that they all are extinct ; in cd042 contrary case, disconnect the food and re-examine the connections carried out.

By observing the indication of the LEDyou note that the exits do not change a state, but that these last preserve well the state which they had before P0 was not actuated, which means that the circuit memorized the situation existing before the action on P0.

It has four data input and each data input has two outputs. The most common use of multi-way switching is for lighting systems and placed in the most common areas of a building like hallways, reception area, kitchen, living room and many other. How to make a site? You can turn ON the light why pressing any of the four switches, which are set on different location in real.

It is the same when the C1 entry is with the state H and that the C2 entry passes to the state L. Quote and Order boards in minutes on https: The flip flop inside the CD IC works as per the table given below: Log in or register to post Comment.

The flip flop inside the CD IC works as per the table given below:. On this subject, you point out that it is advised always to consult the electric diagram to check the exactitude of the connections carried out in practice. There are many ways to perform Multi-way Switching.