74LS04 DATASHEET PDF

Note The ”Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaran- teed The device should not be operated at. µA. VCC = MAX, VIN = V. IIH. Input HIGH Current. mA. VCC = MAX, VIN = V. IIL. Input LOW Current. – mA. VCC = MAX, VIN = V. IOS. 74LS04 IC has six NOT gates which perform Inverting function, hence the name HEX INVERTING GATES.

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Under OFF sate the total supply voltage appears across the transistor. The internal connection of gates can be given as below. No one is permitted to reproduce or duplicate, in any form, datasheft whole or part of this document without written approval from Hitachi. Under such case the output 1Y here will be HIGH, since output is nothing but voltage across transistor.

The description for each pin is given below. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. We have six of these gates in 74LS04 chip. Voltage appears at base of transistor and current flows through it. Now let us take a single gate of the six and connect it as shown in circuit diagram. Copyright ‘ Hitachi, Ltd. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without. We can use one or all six of these gates depending on requirement.

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These NOT gates perform Inverting function. When button is pressed: Choose the appropriate package depending on requirement. Inverter Gates in this chip provide output which is negated logic input. The chip is basically used where a logic inverter is needed.

Hitachi Semiconductor America Inc. Current through base of transistor will be zero. Hitachi Asia Hong Kong Ltd. Hitachi bears no responsibility for failure or damage when used. Even within the guaranteed ranges, consider normally foreseeable.

This product is not designed to be radiation resistant. Under such case the output 1Y here will also be LOW, since output is nothing but voltage across transistor. Datashert ON sate the total supply voltage appears across the datashedt and voltage across transistor 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.

National Semiconductor – datasheet pdf

Products and product specifications may be subject to change without notice. Submitted by admin on 4 April Design your application so that the product is used within the ranges guaranteed by Daasheet particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics.

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Confirm that you have received the latest product standards or specifications before final design, purchase or use. The gates in this chip provide TTL logic outputs which are a must in some applications. Output 1Y is connected to LED through a resistor. As shown in diagram, we have a transistor forming a NOT gate. Hitachi makes every attempt to ensure that its products are of high quality and reliability.

Input here is 1A which is connected to button. In the circuit, When button is not pressed: Design your application so that the product is used within the ranges guaranteed by Hitachi particularly.

National Semiconductor

The series are digital logic integrated circuits. For further information write to: If we draw truth table based on above cases, we will have. Because base current is present the datasheet will turn ON.

Here are few cases where 74LS04 is used. The LED is connected to know the output status. Hex Inverters with Open Collector Outputs. Because base current is zero the transistor will be in OFF state. When you want TTL outputs.

Confirm that you have. TL — Programmable Reference Voltage.

The chip has six gates which do NOT operation. Tun-Hwa North Road, Taipei Tokyo 03 Fax: