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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The chipis basically used when NOR logic function is required. Tokyo 03 Fax: For realizing the above truth table let us take simplified NOR gate and have it connected as shown below. Confirm that you have received the latest product standards or specifications before final design, purchase or use.

Datasheet «SN54/74LS02»

No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. Output of the gate is taken out from joint collector of both transistors.

Like this we can use each gate of the chip depending on requirement. Submitted by admin on 5 April Hitachi makes every attempt to ensure that its products are of high quality and reliability. The four NOR gates in the chip mentioned earlier are connected internally as shown below.


With them eatasheet switching delays of gates are minimized. The description for each pin is given below. Both transistors will be ON and voltage across both of them will be zero. Here are a few cases why it is used. Tun-Hwa North Road, Taipei With that the total drop across both transistors will be zero. Because transistor drop is zero Y1 will be LOW. This output is 74ls002 to a LED trough a current limiting resistor.

Hitachi Asia Hong Kong 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. The two inputs are driven out from bases of two transistors.

74LS02 Datasheet pdf – Quad 2-Input NOR Gate – Fairchild Semiconductor

Hitachi Semiconductor America Inc. When one of buttons is pressed. Even within the guaranteed ranges, consider normally foreseeable. Confirm that you have. After verifying the three states, you can tell 74ps02 we have satisfied the above truth table. Now let us consider a few states: VCC-Connected to positive voltage to provide power to all four gates. These two inputs are connected to buttons. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly.


PDF 74LS02 Datasheet ( Hoja de datos )

The chip also provides TTL outputs which are a must in some systems. Hitachi bears no responsibility for failure or damage when used. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges.

TL — Programmable Reference Voltage.

The buttons are connected to change the logic of inputs. When both buttons are pressed. For further information write to: Products and product specifications may be subject to change without notice.

When you want logic inverter. 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.