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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Confirm that you have. Where high speed NOR operation is necessary. Hitachi Semiconductor America Inc. In that state the current flow through base of both transistors will be zero. Output of the gate is taken out from joint collector of both transistors.
PDF 74LS02 Datasheet ( Hoja de datos )
This output is connected to a LED trough a current limiting resistor. With them the switching delays of gates are minimized. We can use one or all gates. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges.
After verifying the darasheet states, you can tell that we have satisfied the above truth table.
This product is not designed to be radiation resistant. Here are a few cases why it is used.
Hitachi bears no responsibility for failure or damage when used. When both buttons are pressed. When both buttons are not pressed. For realizing the above truth table let us take simplified NOR gate and have it connected as shown below.
Even within the guaranteed ranges, consider normally foreseeable. The chipis basically used when NOR logic function is required. Submitted by admin on 5 April Hitachi makes every attempt to ensure that its products are of high quality and reliability. The chip has four NOR gates in it. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without.
SN54/74LS02 Motorola QUAD 2-INPUT NOR GATE ChipFind Datasheet Archive |
Design your application so that the product is used within the ranges guaranteed by Hitachi particularly.
Hitachi Asia Hong Kong Ltd. Products and product specifications may be subject to change without notice. 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.
The chip also provides TTL outputs which are a must in some systems.
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. Now let us consider a few states: The two inputs are driven out from bases of two transistors.
It is really popular and is available everywhere. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. For further information write to: The buttons are connected to change the logic of inputs. The description for each pin is given below.
VCC-Connected to positive voltage to provide power to all four gates. The chip is available in different packages and is chosen depending on requirement. Tun-Hwa North Road, Taipei This LED is connected to detect the state of output. TL — Programmable Reference Voltage. Tokyo 03 Fax: The four NOR gates in the chip mentioned earlier are connected internally as shown below. Copyright ‘ Hitachi, Ltd. These two inputs are connected to buttons.
Both transistors will be ON and voltage across both of them will be zero. Because transistor drop is zero Y1 will be LOW. With that datahseet total drop across both transistors will be zero. Confirm that you have received the latest product standards or specifications before final design, purchase or use. In the circuit two transistors are connected to form a NOR gate. Because of this the chip can be used high speed applications.
When you want logic inverter. Like this we can use each gate of the chip depending on requirement.