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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Search Results for 74LS02 : 2 documents found
Even within the guaranteed ranges, consider normally foreseeable. Datasheeh by admin on 5 April These two inputs are connected to buttons. 7ls02 is really popular and is available everywhere. Hitachi Semiconductor America Inc. For further information write to: We can use one or all gates. The four NOR gates in the chip mentioned earlier are connected internally as shown below.
When both buttons are not pressed. Tun-Hwa North Road, Taipei Now let us consider a few states: Confirm that you have. This output is connected to a LED trough a current limiting resistor. For realizing the above truth table let us take simplified NOR gate and have it connected as shown below. This product is not designed to be radiation resistant. Because transistor drop is zero Y1 will be LOW. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi.
The buttons are connected to change the logic of inputs. The chip is available in different packages and is chosen depending on requirement. Where high speed NOR operation is necessary. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly. When one of buttons is pressed.
TL datassheet Programmable Reference Voltage. Hitachi bears no responsibility for failure or damage when used. Confirm that you have received the latest product standards or specifications before final design, purchase or use.
When both buttons are pressed. This LED is connected to detect the state of output. Tokyo 03 Fax: Both transistors will be ON and voltage across both of them will be zero. With that the total drop across both transistors will be zero. The chip has four NOR gates in it. Copyright ‘ Hitachi, Ltd. In the circuit two transistors are connected to form a NOR gate.
VCC-Connected to positive voltage to provide power to all four gates. With them the switching delays of gates are minimized. Products and product specifications may be subject to change without notice.
When you want logic inverter. The description for each pin is given below. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without.
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.
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. Output of the gate is taken out from joint collector of both transistors. In that state the current flow through base of both transistors will be zero.
74LS02 Hoja de datos ( Datasheet PDF ) – Quadruple 2-input Positive NOR Gates
Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Like this we can use each gate of the chip depending on requirement. 74lx02 of this the chip can be used high speed applications.
Hitachi Asia Hong Kong Ltd. After verifying the three states, you can tell that we have satisfied the above truth table. Here are a few cases why it is used.