74148 ic datasheet download

The multiple input enables allow parallel expansion to a 1of24 decoder using just three ls8 devices or to a 1of32. This means that you will want a key pressed to give a low output on the corresponding line. Apr 24, 2020 74hc148 ic 8 to 3line priority encoder ic 74148 ic no abstract text available text. Sn54hc148 sn74hc148 unit min nom max min nom max vcc supply voltage 2 5 6 2 5 6 v vcc 2 v 1.

Refer to the maximum ratings table for safe operating area. The km uses four common input and output lines and has an output enable pin which. Jun 18, 2019 ic 74148 pdf descriptionordering information. Jun 30, 2019 74hc148 ic 8 to 3line priority encoder ic 74148 ic allows additionalpulldown. Discussion in homework help started by hitmenmar 16, a priority is assigned to each input so that when two or more inputs are. Active low inputs in some cases, such as this, you will be using the keypad for input to devices which use active low inputs. Technical information motorola semiconductor 74ls148 datasheet. Jun 24, 2019 gs is group output goes low on priority detect, with priority address in a, also active low, combined with gs to flag which ic when cascading two. Since the ic is a transceiver ic, data can flow from input bus to output bus and also from output bus to 74hc datasheet bus, by simply toggling the direction pin dir pin as required. Ad7848 dynam ic, ic e digitaltoanalogconverters 2 7 3 7 ad7848 addo p t c sft dip 28 i clkin pin con, into the dac register.

The response time specified is for a 100 mv input step with 5. These ttl encoders feature priority decoding of the inputs to ensure that only the highestorder data line is. The modern integrated circuit version is typi ed by the famous 741 opamp. 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. The ldac input pin 5 should be tied high for software control of the dac update. Designing a 164 priority encoder from 2 74148 8to3 line. Lm339 semiconductor and integrated circuit devices. Check with the manufacturers datasheet for uptodate information. Data is maintained by an independent source and accuracy is not guaranteed. Mar 16, 2009 hi all, my tutor gave me an answer i did not understand. These ttl encoders feature priority decoding of the inputs to ensure that only the highestorder data line is encoded. I searched the datasheet of 74148 but it did not specify what is gs, e0 and e1. Defective products are accepted for exchange within 7days from the date of purchase.

Sometimes you have more inputs than can be used with a single encoder chip. Thus the operation of 8 to 3 line encoder and 3 to 8 decoder using ic 748, 74148 truth tables are verified. This means that you will want a key pressed to give a low sbeet on the corresponding line. Googling will let you find a data sheet for the device. Datasheet pdf line to 4line and 8line to 3line priority encoders texas instruments. Data is entered serially through dsa or dsb and either input can be used as an active high enable for data entry through the other input. Designing a 164 priority encoder from 2 74148 8to3 line priority encoder device. The sn5474ls147 and the sn5474ls148 are priority encoders. The device features two serial data inputs dsa and dsb, eight parallel data outputs q0 to q7.

Search through datasheets for the 74148 device to find an application note that shows how to cascade two 74148 encoders to create one 16to4 line priority encoder. The device features three enable inputs e1, e2 and e3. Ti 10line to 4line and 8line to 3line priority encoders,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs. Sep 10, 2019 74148 74148 8 to 3 priority encoder 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. Sn7474 datasheet118 pages ti dual dtype positiveedge. The multiple input enables allow parallel expansion to a 1.

Jan, 2020 datasheet pdf line to 4line and 8line to 3line priority encoders texas instruments. Sep 10, 2015 the term operational amplier or opamp refers to a class of highgain dc coupled ampliers with two inputs and a single output. I also do not understand why the e1 of one 74148 is connected to the e0 of another. C h u xp a 10 c in iz sl im m s m w s a 0 o 1 2, diagram lsi lo g ic c o r p o r a t io n, 1551 mccarthy boulevard, milpitas, ca 95035 4082639494 telex. Draw the schematic for the 16to4 line priority encoder. Mar, 2020 74148 ic datasheet pdf, ls d encodes line decimal to 4line bcd. Dm74148n national semiconductor cad model download.

Ti, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Revised may 20041post office box 655303 dallas, texas 75265147, ls147d encode 10line decimal to 4line bcdd applications include. According to the 7447 datasheet the 7446a and 7447a ics feature activelow outputs designed for driving commonanode leds or incandescent indicators directly. Hi all, my tutor gave me an answer i did not understand. Pages created and updated by terry sturtevant date posted. The mc5474f148 provides three bits of binary coded output representing the position of the highest order active input, along with an output indicating. Note bcd output from the ic 74148 as the input to 748. A high causes the sequential priority encoder topriority encoder to be reset on a rising edge of bclk. Compare pricing for national semiconductor dm74148n across 5 distributors and discover alternative parts, cad models, technical specifications, datasheets, and more on octopart. Or if 74hc datasheet are looking for datashewt ic to act as a 8bit logic level converter then 74hc ic might be the right choice for you.

Synchronous operation is provided by having all flipflops clocked simultaneously so that the outputs. The 147 and ls147 devices encode nine data lines to fourline 8421 bcd. I searched the datasheet of 74148 but it did not specify what is gs, e0. Gs is group output goes low on priority detect, with priority address in a, also active low, combined with gs to flag which ic when cascading two. Nov 27, 2019 or if 74hc datasheet are looking for datashewt ic to act as a 8bit logic level converter then 74hc ic might be the right choice for you.