Codificador 74148 datasheet pdf

Codificador 74148 electronica ingenieria electronica. Defective products are accepted for exchange within 7days from the date of purchase. Data is maintained by an independent source and accuracy is not guaranteed. They offer active low, high sink current outputs for driving indicators directly. Jun 09, 2015 this feature is not available right now. The sn5474ls748 is a proprietary motorola part incorporating a builtin deglitcher network which minimizes glitches on the gs output. The ls151 can be used as a universal function generator to generate any logic function of four variables. This cycle will repeat itself as long as the transmission enable te or d8d11 is. Multiple 74148s can be cascaded by connecting eo of the high priority chip to ei of the low priority chip see datasheet. Ci 74147 codificador com prioridade decimalparabcd observando a tabela verdade mostrada na fig. Dm7446a, dm7447a bcd to 7segment decodersdrivers fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and fairchild reserves the right at any time without notice to change said circuitry and specifications.

Revised may 20045post office box 655303 dallas, texas 75265148, ls148 logic diagram positive logic1011 datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated. For instance, if you have 16 inputs but your encoder chip only takes 8 or some of these extra pins are what allow these devices to be cascaded. Dm7446a, dm7447a bcd to 7segment decodersdrivers dm7446a, dm7447a bcd to 7segment decodersdrivers general description the dm7446a and dm7447a feature activelow outputs designed for driving commonanode leds or incandescent indicators directly. Ti 10line to 4line and 8line to 3line priority encoders,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Pdf si4567dy 18jul08 74147 74147 datasheet semiconductor 74147 information 74147. In some cases, such as this, you will be using the keypad for input to devices which use active low inputs. Dm7446a, dm7447a bcd to 7segment decodersdrivers physical dimensions inches millimeters unless otherwise noted 16lead plastic dualinline package pdip, jedec ms001, 0. Check with the manufacturers datasheet for uptodate information. This means that you will want a key pressed to give a low sbeet on the corresponding line.

It accepts two 4bit binary words a1a4, b1b4 and a carry input c 0. Revised may 20045post office box 655303 dallas, texas 75265148, ls148 logic diagram positive logic1011 datasheet search, datasheets, datasheet search site for electronic. According to the 7447 datasheet the 7446a and 7447a ics feature activelow outputs designed for driving commonanode leds or incandescent indicators directly. Revised may 20042post office box 655303 dallas, texas 75265descriptionordering informationthese ttl encoders feature priority decoding of the inputs to ensure that only the highest. All of the circuits have full rippleblanking inputoutput controls and a lamp test input. Nte74148 integrated circuit ttl line to line octal. Circuitos combinacionais codificadores e decodificadores. Revised may 2004 2 post office box 655303 dallas, texas 75265 descriptionordering information these ttl encoders feature priority decoding of the inputs to ensure that only the highestorder data line is. Diagrama logico aplicaciones codificador interruptor. Lead plastic dip type package that features priority decoding of the inputs to ensure that only the highest.

The ls147 encodes nine data lines to fourline 8421 bcd. And 8lineto3line priority encoders the sn5474ls147 and the sn5474ls148 are priority encoders. Both devices have data inputs and outputs which are active at the low logic level. Revised april 2004 post office box 655303 dallas, texas 75265 3 logic diagram positive logic 11 a0 9 1 a1 7 a2 6 gs 14 eo 15 12 2 3 1 4 2 5 5 ei 4 7 3 6 10 0 pin numbers shown are for the d, dw, j, n, ns, and w packages. Codificadores y decodificadores ingenieria electronica. Codificadores e descodificadores linkedin slideshare. Ti, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Datasheet texas instruments pdf data sheet free from. Resources to view pdf documents, you can download adobe acrobat reader. In each o f these cases, no other com ponentso r three ss is used to select the code outputs o f the highestpriority firstlevel encoder w.

These ttl encoders feature priority decoding of the inputs to ensure that only the highestorder data line is. Data sheet acquired from harris semiconductor schs102c revised october 2003 the cd40147b cmos encoder features priority encoding of the inputs to ensure that only the highestorder data line. Bcd to 7segment decoderdriver the sn5474ls47 are low power schottky bcd to 7segment decoder drivers consisting of nand gates, input buffers and seven andorinvert gates. Seven nand gates and one driver are connected in pairs. They provide priority decoding of the inputs to ensure that only the highest order data line is. Segment identification and resultant displays are shown on a following page. They provide priority decoding of the inputs to ensure that only the highest order data line is encoded.

Functional description operation the 212 series of encoders begin a 4word transmission cycle upon receipt of a transmission enable te for the ht12e or d8d11 for the ht12a, active low. The sn5474ls147 and the sn5474ls148 are priority encoders. It provides, in one package, the ability to select one bit of data from up to eight sources. Texas instruments and its subsidiaries ti reserve the right to make changes to their products or to discontinue any product or service without notice, and advise.