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: Dougrel Samule
Country: Zambia
Language: English (Spanish)
Genre: Science
Published (Last): 10 October 2013
Pages: 393
PDF File Size: 20.36 Mb
ePub File Size: 15.65 Mb
ISBN: 355-6-49466-707-8
Downloads: 23457
Price: Free* [*Free Regsitration Required]
Uploader: Tojajar

Because output is nothing but voltage across resistor R1 it will be LOW. For better understanding the internal working let us consider the simplified internal circuit of AND gate as shown below. The two inputs of AND gate are driven out from bases of the two transistors. When any one of the buttons hfe4081 pressed. Both transistors will be ON and voltage across both of them will be zero.

By using this site, you agree to the Terms dataheet Use and Privacy Policy. In the circuit two transistors are connected in series to form a AND gate.

HEFBP Datasheet pdf – Quad 2-input AND gate – NXP Semiconductors

This page was last edited on 16 Decemberat At this time the total VCC appears across resistor R1. When both buttons are pressed.


The circuit working can be hec4081 in few stages below: AND gates with more inputs can be made up from the or any of the above ICs by cascading them together.

The pinout diagram, given on the right, is the standard two-input logic gate IC layout:. TL — Programmable Reference Voltage. Because of this the chip can be used for high speed AND operations.

The second will require only one IC, but only two gates can be made. This LED is connected to detect the state of output.

Practical Electronics/IC/4081

After verifying the three states, you can tell that we have satisfied the above truth table. The chip is basically used datasheey AND logic operation is needed. There are four AND gates in the chip, we can use one or all gates simultaneously. In other languages Add links.

Policies and guidelines Contact us. The arrangement of the CMOS components is shown below:. The first is to use a NAND gate and invert the output. For realizing the above truth table let us take a simple AND gate application circuit as shown below.


These are available from manufacturers. The chip is used in systems where high speed AND operation is needed. The truth table for one of the four gates is shown to the right. The description for each pin is given below.

When both buttons are not pressed. From Wikibooks, open books for an open world. These two inputs are connected to buttons to change the logic of inputs. The chip provides TTL outputs which are needed in some systems. Retrieved from ” https: The four AND gates in the chip mentioned earlier are connected internally as shown in diagram below. A selection of different manufacturers’ datasheets is given datashewt.

It is really popular and is available everywhere.

This chip is different in pinout to the TTL andbut can fulfill the function of either if the wiring daatasheet modified. The first method with require two ICs to implement, but a total of four gates can be made.