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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Multi-way switching is the most common method to be found in the electrical system.

CD4042 – CD4042 Quad Clocked D Latch

The supply voltage of the IC is up to 18v max. Next Article Timer IC.

Click here for the following lesson or in the synopsis envisaged to this end. You can turn ON the light why pressing any of the four cd404, which are set on different location in real.

This IC can be latched at four outputs by giving the clock pulse, so we will control an AC light with four different buttons at four different places. CD has four flip-flop inside it, each strobe by a common clock.

These two entries have a function similar to the entry C of rocker R. With the C1 entry on the level H and the C2 entry on the level Lthe circuit memorizes the last logical level present on the entry at the moment which immediately precedes that where the C1 entry passed from the level L on the level H.

Top menu About Us Contact. If the polarity set to high or oneby giving high to input, the output waveform will rise when the clock pulse falls. 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.

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By taking account of the preceding 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 cv4042 summarizes as follows: There are four Flip-flops present inside IC, each strobe by a common clock. Static page of welcome.

Being given the complexity of the circuit, the electric diagram as you can observe it is simply made up by a rectangle from which the connections leave to the various pins. Cd402 a Relay module is attached to the Q0 output pin 2. 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.

CD4042 – Quad Latch

As the relay triggered the bulb or light turns ON and remain in ON state until the switch is released. With the handling which will follow, you will check the operation of the integrated circuit CD container four circuits latch asynchronous of type D.

The rocker D used in practice preceding can function as synchronous latch. Return to the synopsis To contact the author Low of page.

Now, the circuit given below shows that how we can use CD IC for making an electronic circuit.

CD – CD Quad Clocked D Latch

Quote and Order boards in minutes on https: Therefore, if for ce4042 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. There are many ways to perform Multi-way Switching.

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When Polarity set to Low, on giving high pulse the output waveform will rise when the clock pulse is in rising state.

You note this time that the situation was reversed ; when the C1 entry is on the level Lthe circuit is insensitive with the changes of levels H and L which appear on cd40042 entries. It is the same when the C1 entry is with the state H and that the C2 entry passes to the state L. Using these last dc4042, you can supplement the table of operation of the CD which is thus presented as shown in the figure The logic diagram and truth table of the IC is given below: With this test, you noted that on each exit of the integrated circuit in question, you find the level present on the corresponding entry.

Dynamic page of welcome. It indeed memorizes ccd4042 logical state present on the entry D at the moment of the positive transition applied to entry CLOCK. It memorizes the logical level present at the moment when the C1 entry passes from the level H on the level L.