DATASHEET 74LS02 PDF

SN74LS02N. SN74LS02NSR. ACTIVE. SO. NS. Green (RoHS. & no Sb /Br). CU NIPDAU. LevelC-UNLIM. 0 to 74LS 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. Free 74LS02 semiconductor datasheets. Datasheet search.

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These two inputs are connected to buttons. It is really popular and is available everywhere. Here are a few cases why it is used. For realizing the above truth table let us take simplified NOR gate and have it connected as shown below. The buttons are connected to change the logic of inputs. With that the total drop across both transistors will be zero. This LED is connected to detect the state of output. The four NOR gates in the chip mentioned earlier are connected internally as shown below.

In that state the current flow through base of both transistors will be zero. The description for each pin is given below.

Copyright ‘ Hitachi, Ltd. Confirm that you have received the latest product standards or specifications before final design, purchase or use. Even within the guaranteed ranges, consider normally foreseeable.

PDF 74LS02 Datasheet ( Hoja de datos )

This product is not designed to datasheeg radiation resistant. With them the switching delays of gates are minimized. VCC-Connected to positive voltage to provide power to all four gates. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly. This output is dxtasheet to a LED trough a current limiting resistor. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without.

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Submitted by admin on 5 April When you want logic inverter. Because transistor drop is zero Y1 will be LOW.

For further information write to: TL — Programmable Reference Voltage. When one of buttons is pressed. When both buttons are pressed. The chip has four NOR gates in it. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure datashwet 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.

After verifying the three states, you can tell that we have satisfied the above truth table. Where high speed Datasneet operation is necessary.

Both transistors will be ON and voltage across both of them will be zero. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges.

74LS02 datasheet & applicatoin notes – Datasheet Archive

Now let us consider a few states: We can use one or all gates. Hitachi Semiconductor America Inc. Confirm that you have. Output of the gate is taken out from joint collector of both transistors.

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Vatasheet 03 Fax: The chip also provides TTL outputs which are a must in some systems. Hitachi bears no responsibility for failure or damage when used. Because of this the chip can be used high speed applications.

No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. Design your application so that the product is used 74ls0 the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics.

Products and product specifications may be subject to change without notice. Hitachi makes every attempt to ensure that its products are of high quality and reliability. The chipis basically used when NOR logic function is required.

In the circuit two transistors are connected to form a NOR gate. Hitachi Asia Hong Kong Ltd. Like this we can use each gate of the chip depending on requirement. When both buttons are not pressed. The two inputs are driven out from bases of two transistors.