This device is ideally suited for high speed bipolar memory chip select address decoding. Decodersdrivers the sn5474ls247 thru sn5474ls249 are bcdtosevensegment decoderdrivers. Dm74ls153 dual 1of4 line data selectorsmultiplexers. Dm74ls8 dm74ls9 decoderdemultiplexer dm74ls8 dm74ls9 decoderdemultiplexer general description these schottkyclamped circuits are designed to be used in highperformance memorydecoding or datarouting applications, requiring very short propagation delay times. The 74ahcahct8 decoders accept three binary weighted address inputsa0,a1and a2. Unless otherwise noted these limits are over the operating freeair temperature range. The device features three enable inputs e1 and e2 and e3. The ic748 is the 3 x 8 decoder which contains three inputs and 8 outputs and also three enables out of them two are active low and one is active high. Both circuits feature high noise immunity and low power consumption usually associated with ttl circuitry, yet have speeds comparable to low power schottky ttl logic. Sn74ls8n texas instruments decoder demultiplexer, ls. The device has two independent decoders, each accepting two inputs and providing four mutually exclusive active low outputs.
Dual 1of4 decoder demultiplexer the lsttlmsi sn5474ls9 is a high speed dual 1of4 decoderdemultiplexer. The chip is designed for decoding or demultiplexing applications and comes with 3 inputs to 8 output setup. Serialin parallelout shift register the sn5474ls164 is a high speed 8bit serialin parallelout shift register. The device features three enable inputs e1, e2 and e3. The sn74ls8n is a 3line to 8line decoder demultiplexer, schottkyclamped ttl msi circuit is designed to be used in highperformance memory decoding or datarouting applications requiring very short propagation delay times. Chip,iconline,databook,datasheet catalog,datasheet archive. It provides, in one package, the ability to select one bit of data from up to eight. Dm74ls154 4line to 16line decoderdemultiplexer dm74ls154 4line to 16line decoderdemultiplexer general description each of these 4lineto16line decoders utilizes ttl circuitry to decode four binarycoded inputs into one of sixteen mutually exclusive outputs when both the strobe inputs, g1 and g2, are low.
The multiple input enables allow parallel expansion to a 1of24 decoder using just three f8 devices or a 1of32 decoder using four f8. Segment identification and resultant displays are shown on a following page. The ls8, sn54s8, and sn74s8a decode one of eight lines dependent on the conditions at. Dm74ls8, dm74ls9 decodersdemultiplexers general description these schottkyclamped circuits are designed to be used in highperformance memorydecoding or datarouting applications, requiring very short propagation delay times. Voltage value, unless otherwise noted, are with respect to network ground terminal. Ti defines rohs to mean semiconductor products that are compliant with the current eu rohs requirements for all 10 rohs substances, including the requirement that rohs substance do not exceed 0.
Where designed to be soldered at high temperatures, rohs products are. All of the circuits have full rippleblanking inputoutput controls and a lamp test input. Serial data is entered through a 2input and gate synchronous with the low to high transition of the clock. The device features an asynchronous master reset which clears the register setting all outputs low independent of the clock. Leading and trailing zeros can be suppressed simultaneously by using external gates, i. Ti defines rohs to mean semiconductor products that are compliant with the current eu rohs requirements for all 10 rohs substances, including the requirement that rohs substance. The sn74ls8n is a 3line to 8line decoderdemultiplexer, schottkyclamped ttl msi circuit is designed to be used in highperformance memory decoding or datarouting applications requiring very short propagation delay times. Dm74ls9 decoder demultiplexer 74ls8 74ls8 smd 74ls9 decoderdemultiplexer general description these schottkyclamped circuits are designed to be used in highperformance memorydecoding or datarouting applications, requiring very short propagation delay times. The ls247 and ls248 are functionally and electrically identical to the ls47 and ls48 with the same pinout configuration. The design is also made for the chip to be used in highperformance memorydecoding or datarouting applications, requiring very short propagation delay times. The device accepts a three bit binary weighted address on input pins a0, a1 and a2 and when enabled will produce one active low output with the remaing seven being high. Recommended operating conditions item symbol min typ max unit supply voltage v cc 4. This multiple enable function allows easy parallel expansion of the 8 to a1of32 5 to 32 lines decoder with just four 8 ics and one inverter.
In highperformance memory systems, this decoder can be used to minimize the effects of system decoding. The lsttlmsi sn54 74ls8 is a high speed 1of8 decoder demultiplexer. Bcd to 7segment decodersdrivers general description the 46a and 47a feature activelow outputs designed for driving commonanode leds or incandescent indicators directly. The parametric values defined in the electricalcharacteristics tables are not guaranteed at the absolute maximum ratings. The decoder is used for converting the binary code into the octal code. The lsttlmsi sn5474ls8 is a high speed 1of8 decoder demultiplexer. The absolute maximum ratings are those values beyond whichthe safety of the device cannot be guaranteed. The 8 can be used as an eight output demultiplexer by using one of theactive low enable inputs as the data input and. Permanently tie unused enable inputs to their appropriate active high or. In highperformance memory systems these decoders can. Oct 31, 2016 sn5474ls8 1of8 decoder demultiplexer low power schottky j suffix ceramic case 62009 n suffix plastic case 64808 16 1 16 1 ordering information sn54lsxxxj ceramic. Fairchild decoder demultiplexer,alldatasheet, datasheet, datasheet search site for electronic. In highperformance memory systems these decoders can be used to minimize the effects of system decoding.
When the application requires a large demultiplexer with more number of output pins, then we cannot implement by a single integrated circuit. Each decoder has an active low enable input which can be used as a data input for a 4output demultiplexer. The multiple input enables allow parallel expansion to a 1of24 decoder using just three ls8 devices or to a 1of32 decoder using four ls8s and one inverter. The 74ls8 decoder utilizes advanced silicongate ttl technology, and are well suited to memory address decoding or data routing applications. Both circuits feature high noise immunity and low power consumption usually associated with ttl circuitry, yet have. Tsl230 and a 74ls8 3 line to 8 line decoder tied to some leds, we can construct a uv monitor.
Recent listings manufacturer directory get instant insight into any. A 24line decoder can be implemented without external inverters and a 32line decoder requires only one. Fairchild, alldatasheet, datasheet, datasheet search site for electronic components. Sn5474ls8 1of8 decoder demultiplexer low power schottky j suffix ceramic case 62009 n suffix plastic case 64808 16 1 16 1 ordering information sn54lsxxxj ceramic. They are specified incompliance with jedec standard no. Decoder demultiplexer, 74ls8 datasheet, 74ls8 circuit, 74ls8 data sheet. The chip is designed for decoding or demultiplexing applications and comes with 3. Dm74ls9 decoderdemultiplexer 74ls8 74ls8smd 74ls9 decoderdemultiplexer general description these schottkyclamped circuits are designed to be used in highperformance memorydecoding or datarouting applications, requiring very short propagation delay times. This means that the effective system delay introduced by the schottkyclamped system decoder is negligible. Where designed to be soldered at high temperatures, rohs products are suitable for use. The ls8, sn54s8, and sn74s8a decode one of eight lines dependent on the conditions at the three binary select inputs and the three enable inputs. With a 3bit storage latch, this ic combines the 3to8 decoder function. The device inputs are compatible with standard cmos outputs.
Dm7446a, dm7447a bcd to 7segment decodersdrivers physical dimensions inches millimeters unless otherwise noted 16lead plastic dualinline package pdip, jedec ms001, 0. The ls249 is a 16pin version of the 14pin ls49 and includes full functional capability for lamp test and. Every output will be low unless e1 and e2 are low and. This device is ideally suited for highspeed bipolar memory chip select address decoding.