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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The device should not be operated at these limits.

Devices also available in Tape and Reel. When you want TTL outputs. Output 1Y is connected to LED through a resistor.

74LS04 Pinout, Features, Equivalent, Examples & Datasheet

Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Input here is 1A which is connected to button. Hitachi Asia Hong Kong Ltd. Even within the guaranteed ranges, consider normally foreseeable.

Even within the guaranteed 74ls044, 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.

Under such case the output 1Y here will also be LOW, since output is nothing but voltage across transistor. Tun-Hwa North Road, Taipei For further information write to: Related publications Share Embed Add to favorites Comments. Datasueet we draw truth table based on above cases, we will have. This datasheet has been downloaded from: Submitted by admin on 4 April Hitachi Semiconductor America Inc. Confirm that you have received the latest product standards or specifications before final design, purchase or use.


The internal connection of gates can be given as below. Not more than one output should be shorted at a time.

Calaméo – Datasheet – 74LS04

In the circuit, When button is not pressed: Design your application so that 7ls04 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. Recommended Operating Conditions Electrical Characteristics over recommended operating free air temperature range unless otherwise noted Note 2: Under such case the output 1Y here will be HIGH, since output datasehet nothing but voltage across transistor.

Voltage appears at base of transistor and current flows through it. Under OFF sate the total supply voltage appears across the transistor. Current through base of transistor will be zero. Hitachi makes every attempt to ensure that its products are of high quality and reliability.

Because base current is zero the transistor will be in OFF state. As shown in diagram, we have a dqtasheet forming a NOT gate.

The chip has six gates which do NOT operation. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Choose the appropriate package depending on requirement. Because base current is present the transistor will turn ON. Copyright ‘ Hitachi, Ltd. Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user.


The chip is basically used where a logic inverter is needed. Now let us take a single gate of the six and connect it as shown in circuit diagram. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi.

Here are few cases where 74LS04 is used. The description for each pin is given below.

National Semiconductor

Confirm that you have. Hitachi bears no responsibility for failure or damage when used.

Products and product specifications may be subject to change without notice. Hex Inverters with Open Collector Outputs. The parametric values defined in the Datadheet Characteristics tables are not guaranteed at the absolute maximum ratings. These NOT gates perform Inverting function. TL — Programmable Reference Voltage. When button is pressed: The gates in this chip provide TTL logic outputs which are a must in some applications.

No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without.