The SN54/ 74LS and SN54 / 74LS are octal buffers and line drivers with the same functions as the LS and LS, but with pinouts on the opposite. Texas Instruments 74LS Buffers & Line Drivers are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Texas Instruments . 74LS datasheet, 74LS circuit, 74LS data sheet: ONSEMI – OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS,alldatasheet, datasheet.

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Important Information and Disclaimer: As long as other logic determines that no more than one output is driving the same 74ls51 at the same time, all is well. This package can be hermetically sealed with a metal lid. Microcontrolador Microcontrolador Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed.

Since a regular TTL logic gate sources current for “1” and sinks current for “0,” a signal where neither of these is happening the signal is “off,” like in open collector outputs can actually be thought of as being a third state. Arquivos Semelhantes Esquema e software fatasheet gravador p via porta paralela To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards.

74LS Datasheet PDF – Texas Instruments

Esquema 74ks541 software de grava Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. The 3-state control gate is a 2-input NOR gate such that, if either output-enable OE1 or OE2 input is high, all eight outputs are in the high-impedance state.


This arrangement greatly facilitates printed circuit board layout. Use of such information may require a license from a third party under datashete patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Efforts are underway to better integrate information from third parties. Please be aware that an important notice concerning availability, standard datasgeet, and use in critical applications of TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty.

74LS 데이터시트(PDF) – ON Semiconductor

TI does not warrant dataasheet represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used.

The 74LS00 family We’ve already spent time looking at the TTL logic family, even though I only introduced the first part in the family.

Parts which are capable of having their output in any of these three states are considered to have “tri-state” 74lss541. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.

There are six of these on a single chip. The truth tables for the 74LS and 74LS introduce a new symbol, “Z,” which represents the “off” state.


Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.

The 74LS is identical to the 74LS except it only counts from 0 through 9 through binary ; the 74LS is similarly identical to the 74LS except for the limited range.

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These four-bit counter parts can count up or down. Not recommended for new designs. The eight-bit buffers 74LS and 74LS are functionally equivalent to the widely used 74LS and 74LS; however the ‘ and ‘ have a more confusing pin-out to trip the unwary daasheet.

The terminals are gold plated. Production processing does not necessarily include testing of all parameters. Device is in production to support existing customers, but TI does not recommend using this dqtasheet in a new design.

Outputs Q0 through Q3 are a binary value, where Q0 is the least signifigant bit and Q3 is most significant. When measuring propagation delay items of 3-state outputs, switch S1 is open. This is a modified output circuit within the chip which sinks current to indicate a logic “0,” but turns off to indicate a logic “1. This drawing is subject to change without notice. Esquema e software de gravador p via porta paralela Esquema e software de gravador p via porta paralela.