HEF Datasheet, HEF PDF, HEF Data sheet, HEF manual, HEF pdf, HEF, datenblatt, Electronics HEF, alldatasheet, free. Oct 11, DATASHEET. Features. • High-Voltage Types (20V Rating). • CDBMS Triple 3-Input AND Gate (No longer available or supported). Data sheet acquired from Harris Semiconductor. SCHSC – Revised September The CDB, CDB, and CDB types are supplied in .

Author: Gugar Dogor
Country: Jamaica
Language: English (Spanish)
Genre: Relationship
Published (Last): 4 April 2007
Pages: 141
PDF File Size: 4.94 Mb
ePub File Size: 9.18 Mb
ISBN: 908-5-26555-214-3
Downloads: 36711
Price: Free* [*Free Regsitration Required]
Uploader: Mauran

The second will require only one IC, but only two gates can be made. When both buttons are not pressed.

Views Hef40881 Edit View history. A selection of different manufacturers’ datasheets is given below:. When both buttons are pressed. This chip is different in pinout to the TTL andbut can fulfill the function of either if the wiring is modified.

The two inputs of AND gate are driven out from bases of the two transistors. For more information about the AND gate in general, see this module. Hf4081 first is to use a NAND gate and invert the output. The chip is available in different packages and is chosen depending on requirement. The pinout diagram, given on the right, is the standard two-input logic gate IC layout:. After verifying the three states, you can tell that we have satisfied the above truth table.


A few mentioned below. AND gates with more inputs can be made up from the or any of the above ICs by cascading them together. This page was last edited on 16 Decemberat It is really popular and is available everywhere. Retrieved from ” https: The truth table her4081 one of the four gates is shown to the right.

In other languages Add links. There are four AND gates in the chip, we can use one or all gates simultaneously.

The chip provides TTL outputs uef4081 are needed in some systems. By using this site, hef401 agree to the Terms of Use and Privacy Policy. In the circuit two transistors are connected in series to form a AND gate. The chip is basically used where AND logic operation is needed. If a is not available, there are several ways to achieve an AND gate.

Because total VCC datasheeet across transistors the drop across resistor R1 will be zero. This LED is connected to detect the state of output.

In this state the current flow through base of both transistors will be zero. These are available from manufacturers. The description for each pin is given below.


For realizing the above truth table let us take a simple AND gate application circuit as shown below. From Wikibooks, open books for an open world.

Both transistors will be ON and voltage across both of them will be zero.

This is discussed on this page. When any one of the buttons is pressed.

HEF Datasheet, PDF – Alldatasheet

Submitted by admin on 6 April ratasheet Output of the AND gate is the voltage across resistor R1. These two inputs are connected to buttons to change the logic of inputs. Because of this the chip can be used for high speed AND operations.

The four AND gates in the chip mentioned earlier are connected internally as shown in diagram below.

Practical Electronics/IC/4081

The first method with require two ICs to implement, but a total of four gates can be made. Policies and guidelines Contact us.

TL — Programmable Reference Voltage. With that the drop across resistor R1 will be zero. The arrangement of the CMOS components is shown below:.