Data sheet acquired from Harris Semiconductor. SCHSD – Revised August CDB. Quad 2-Input OR Gate. CDB. This datasheet has been downloaded from: This file is the datasheet for the following electronic components: CD – ?. CD is a Dual Input OR Gate with Quad package, i.e. it has four OR gate IC inside it, each of which can be utilized independently.

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Views Read Edit View history. Complete Technical Details can be found at the CD datasheet provided below this article. For more information about the OR gate in general, see this module.

The second will require only one IC, but only two gates can be made. TL — Programmable Reference Voltage. Submitted by admin on 2 July This is discussed on this page.

CD4071 PDF Datasheet浏览和下载

OR gates with more inputs can be made up from the or any of the above ICs by cascading them together. The truth table for one of the four gates is shown to the right. The resistor R is used to limit the current through the LED.


The output of the OR gate is called as Q. A selection of different manufacturers’ datasheets is given below:. The truth table for the OR gate is shown below.

Logic level gates like CD and flip-flops play a vital role in digital electronics. Policies and guidelines Contact us.

The arrangement of the CMOS components is shown below:. If you have more than two inputs for your OR gate then you should look into three input and four input OR gates. The first is to use a NOR gate and invert the output. This datazheet was last edited on 16 Decemberat By using this site, you agree to the Terms of Use and Privacy Policy.

The logic OR operation is very simple, since this is a two input OR gate we will have only two inputs which is A and B respectively. In other languages Add links. Meaning it has four OR gate IC inside it, each of which can be utilized independently. The first method will require two ICs to implement, but a total of four gates can be made.

CD Datasheet(PDF) – Fairchild Semiconductor

The input for the gate is controlled by using a switch connected to pin A and B of the Gate. Retrieved from ” https: From Wikibooks, open books for an open world.


If a is not available, there datashset several ways to achieve an OR gate. As per the truth table shown above, when either one or both the input of the Gate is high the output will be high. This chip is different in pinout to the TTLbut can fulfill the function of its counterpart if the wiring is modified.

If you are looking for an IC to perform logic level OR operation with two inputs, then this IC datashet be the right choice for you. In dc4071 projects Wikimedia Commons.

CD Datasheet(PDF) – National Semiconductor (TI)

To visualize the output we have connected a LED to the output pin Q. A pull down resistor of k is used to hold the logic to low logic 0 when the switch is left floating.

These are available from manufacturers.