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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For more information about the OR gate in general, see this module. Complete Technical Details can be found at the CD datasheet provided below this article.
The second will require only one IC, but only two gates can be made. The input for the gate is controlled by using a switch connected to pin A and B of the Gate.
Logic level gates like CD and flip-flops play a vital role in digital electronics. Policies and guidelines Contact datasheeet. This chip is different in pinout to the TTLbut can fulfill the function of its counterpart if the wiring is modified.
The resistor R is used to limit the current through the LED.
Submitted by admin on 2 July As per the truth table shown above, when either one or both the input of the Gate is high the output will be high. TL — Programmable Reference Voltage.
A pull down resistor of k is used to hold the logic to low logic 0 when the switch is left datashert. The first is to use a NOR gate and invert the output. The arrangement of the CMOS components is shown below:. The output of the OR gate is called as Q.
If a is not available, there are several ways to achieve an OR gate. Views Read Edit View history. Retrieved from ” https: The truth table for the OR gate is shown below.
CD Datasheet(PDF) – Fairchild Semiconductor
OR gates with more inputs datasheer be made up from the or any of the above ICs by cascading them together. This page was last edited on 16 Decemberat This is discussed on this page. If you have more than two inputs for your OR gate then you should look into three input and four input OR gates. In other projects Wikimedia Commons.
To visualize the output we have connected a LED to the output pin Q. A selection of different manufacturers’ datasheets is given below:.
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. The first method will require two ICs to implement, but a total of datahseet gates can be made. In other languages Add links. These are available from manufacturers.