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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The truth table for one of the four gates is shown to the right.
For more information about the OR gate in general, see this module. The arrangement of the CMOS components is shown below:.
This chip is different in pinout to the TTLbut can fulfill the function of its counterpart if the wiring is modified. If a is not available, there are several ways to achieve an OR gate.
The first is to use a NOR gate and invert the output. The first method will require two Adtasheet to implement, but a total of four gates can be made.
The second will require only one IC, but only two gates can be made. OR gates with more inputs can be made up from the or any of the above ICs by cascading dwtasheet together. This is discussed on this page.
These are available from manufacturers. A selection of different manufacturers’ datasheets is given below:.
CD 데이터시트(PDF) – Fairchild Semiconductor
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