74LS Absolute Maximum Ratings(Note 1). Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be. 74LS02 is a LOGIC GATE IC and member of 74XXYY IC series which are logic Where to use 74LS02 IC 74LS02 NOR Gate IC Datasheet. 74LS02 datasheet, 74LS02 pdf, 74LS02 data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, Quad 2-Input NOR Gate.

Author: Dilkis Zulkirisar
Country: Switzerland
Language: English (Spanish)
Genre: Politics
Published (Last): 25 March 2011
Pages: 76
PDF File Size: 20.51 Mb
ePub File Size: 10.21 Mb
ISBN: 271-3-21070-793-7
Downloads: 4699
Price: Free* [*Free Regsitration Required]
Uploader: Kigaramar

Even within the guaranteed ranges, consider normally foreseeable. Output of the gate is taken out from joint collector of both transistors.

74LS02 NOR Gate IC Pinout, Features, Equivalents, Circuit & Datasheet

The chipis basically used when NOR logic function is required. We can use one or all gates. The chip has four NOR gates in it. The description for each pin is datashert below.

The chip is available in different packages and is chosen depending on requirement. In that state the current flow through base of both transistors will be zero.


Now let us consider a few states: In the circuit two transistors are connected to form a NOR gate. Here datazheet a few cases why it is used. This output is connected to a LED trough a current limiting resistor. With that the total drop across both transistors will be zero. TL — Programmable Reference Voltage. It is really popular and is available everywhere.

SNLS02 Datasheet(PDF) – ON Semiconductor

Because of this the chip can be used high speed applications. Hitachi Semiconductor America Inc.

Tun-Hwa North Road, Taipei Hitachi Asia Hong Kong Ltd. The four NOR gates in the chip mentioned earlier are connected internally as shown below.

VCC-Connected to positive voltage to provide power to all four gates. With them the switching delays of gates are minimized.

Because transistor drop is zero Y1 will be LOW. For further information write to: Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as fail- safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product.


When both buttons are pressed. These two inputs are connected to buttons. After verifying the three states, you can tell that we have satisfied the above truth table.

Datasheet «SN54/74LS02»

Confirm that you have. Copyright ‘ Hitachi, Ltd. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics.

When one of buttons is pressed.

Tokyo 03 Fax: Both transistors will be ON and voltage across both of them will be zero. Like this we can use each gate of the datashret depending on requirement. Submitted by admin on 5 April

Posted in Art