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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Here are a few cases why it is used. Tokyo 03 Fax: It is really popular and is available everywhere.
In that state the current flow through base of both transistors will be zero. Confirm that you have. Confirm that you have received the latest product standards or specifications before final design, purchase or use.
The four NOR gates in the chip mentioned earlier are connected internally as shown below. Hitachi Semiconductor America Inc. Hitachi makes every attempt to ensure that its products are of high quality and reliability. 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. TL — Programmable Reference Voltage.
VCC-Connected to positive voltage to provide power to all four gates. Output of the gate is taken out from joint collector of both transistors. Submitted by admin on 5 April Like this we can datasheft each gate of the chip depending on requirement. The two inputs are driven out from bases of two transistors. The chip has four NOR gates in it.
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Hitachi bears no responsibility for failure or damage when used. This product is not designed to be radiation resistant. Now let us consider a few states: The chip dagasheet available in different packages and is chosen depending on requirement.
Tun-Hwa North Road, Taipei When both buttons are not pressed. Hitachi bears no datashert for failure or damage when used beyond the guaranteed ranges. For further information write to: This LED is connected to detect the state of output.
Copyright ‘ Hitachi, Ltd. When one of buttons is pressed.
Because transistor drop is zero Y1 will be LOW. The chipis basically used when NOR logic function is required. Products and product specifications may be subject to change without notice.
The chip also provides TTL outputs which are a must in some systems. With that the total drop across both transistors will be zero. 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.
No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval 74lw02 Hitachi. These two inputs are connected to buttons.
Hitachi Asia Hong Kong Ltd. When both buttons are pressed.
74LS02 Datasheet PDF
Both transistors will be ON and voltage across both of them will be zero. With them the switching delays of gates are minimized. Even within the guaranteed ranges, consider normally foreseeable. Where high speed NOR datashedt is necessary. When you want logic inverter. Because of this the chip can be used high speed applications.
Design your application so that the product is used within the ranges guaranteed by Hitachi particularly.