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 such case the output 1Y here will also be LOW, since datasyeet is nothing but voltage across transistor. When button is pressed: Because base current is present the transistor will turn ON.
Hitachi bears no responsibility for failure or damage when used. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Submitted by admin on 4 April Input here is 1A which is connected to button.
PDF 74LS04 Datasheet ( Hoja de datos )
Now let us take a single gate of the six and connect it as shown in circuit diagram. For further information write to: Hitachi Asia Hong Kong Ltd. These NOT gates perform Inverting function. As shown in diagram, we have a transistor forming a NOT gate.
74LS04 Datasheet(PDF) – Motorola, Inc
Here are few cases where 74LS04 is used. The internal connection of gates can be given as below. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi.
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.
Output 1Y is connected to LED through a resistor.
74LS04 Hoja de datos ( Datasheet PDF ) – Hex Inverters(with Open Collector Outputs)
The chip is basically used where a logic inverter is needed. The description for each pin is given below. In the circuit, When button is not pressed: The LED is connected to know the output status.
The gates in this chip provide TTL logic outputs which are a must in some applications. Because base current is zero the transistor will be in OFF state. We have six of these gates in 74LS04 chip.
If we draw truth table based on above cases, we will have. Choose the appropriate package 74lls04 on requirement. Hex Inverters with Open Collector Outputs. Under OFF sate the total supply voltage appears across the transistor. Voltage appears at base of transistor and current flows through it. The chip has six gates which do NOT operation.
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TL — Programmable Reference Voltage. When you want TTL outputs. Under ON sate the total supply voltage appears across the resistor and voltage across transistor will be zero. This product is not designed to be radiation resistant. Current through base of transistor will be zero.
We can use one or all six of these gates depending on requirement. Under such case the output 1Y here will be HIGH, since output is nothing but voltage across transistor. Tun-Hwa North Datashewt, Taipei Inverter Gates in this chip provide output which is negated logic input.
Copyright ‘ Hitachi, Ltd. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without. Tokyo 03 Fax: Products and product specifications may be subject to change without notice. The series are digital logic integrated circuits.