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74LS02 DATASHEET PDF

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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.

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For realizing the above truth table let us take simplified NOR gate and have it connected as shown below. Hitachi makes every datasheeg to ensure that its products are of high quality and reliability. Both transistors will be ON and voltage across both of them will be zero.

Output of the gate is taken out from joint collector of both transistors. Now let us consider a few states: When you datasneet logic inverter.

Confirm that you have. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly. Even within the guaranteed ranges, consider normally foreseeable dxtasheet 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. In that state the current flow through base of both transistors will be zero.

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Copyright ‘ Hitachi, Ltd.

Because transistor drop is zero Y1 will be LOW. Submitted by admin on 5 April The two inputs are driven out from bases of two transistors.

The four NOR gates in the chip mentioned earlier are connected internally as shown below. Tokyo 03 Fax: Where high speed NOR operation datashheet necessary.

SNLS02 Datasheet(PDF) – ON Semiconductor

The description for each pin is given below. 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. Here are a few cases why it is used.

These two inputs are connected to buttons. We can use one or all gates. The chip is available in different packages and is chosen depending on requirement. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without.

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

VCC-Connected to positive voltage to provide power to all four gates. The chip has four NOR gates in it. The buttons are connected to change the logic of inputs. Hitachi Asia Hong Kong Ltd.

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74LS02 Datasheet

Tun-Hwa North Road, Taipei The chip also provides TTL outputs which are a must in some systems. Hitachi bears no responsibility for failure or damage when used. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi.

The chipis basically used when NOR logic function is required. It is really popular and is available everywhere. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges.

Hitachi Semiconductor America Inc. Even within the guaranteed ranges, consider normally foreseeable. Because of this the chip can be used high speed applications. This product is not designed to be radiation resistant. Like this we can use each gate of the chip depending on requirement. This output is connected to a LED trough a current limiting resistor. With them the switching delays of gates are minimized. Confirm that you have received the latest product standards or specifications before final design, purchase or use.

When both buttons are pressed. In the circuit two transistors are connected to form a NOR gate. Products and product specifications may be subject to change without notice.