Friday, December 3, 2010

Do you know anything about ic 7400 datasheet

ic 7400 datasheet


The 7400 series of TTL are historically important as the first widespread . [ The 7400 series contains hundreds of devices that provide everything from basic , , and counters, to special purpose bus transceivers and ALU . Like the , the newer versions of the 7400 series are also usable as analog amplifiers using negative feedback similar to with only an inverting input . [ 7400 series parts were constructed using , forming what is referred to as or TTL . 74L - Low power compared to the original TTL logic family , very slow H - High speed still produced but generally superseded by the S-series, used in 1970s era computers S - F - Fast faster than normal Schottky, similar to AS HC - High speed CMOS, similar performance to LS, 12 nS HCT - High speed, compatible logic levels to bipolar parts AC - Advanced CMOS, performance generally between S and F AHC - Advanced High-Speed CMOS, three times as fast as HC ALVC - Low voltage - 1.65 to 3.3 V, AUC - Low voltage - 0.8 to 2.7 V, TPD < 1.9 nS@1.8 V FC - Fast CMOS, performance similar to F LVC - Low voltage – 1.65 to 3.3 V and 5 V tolerant inputs, tpd < 5.5 nS@3.3 V, tpd < 9 nS@2.5 V LVQ - Low voltage - 3.3 V LVX - Low voltage - 3.3 V with 5 V tolerant inputs BCT - BiCMOS, TTL-compatible input thresholds, used for buffers ABT - Advanced BiCMOS, TTL-compatible input thresholds, faster than ACT and BCT Many parts in the CMOS HC, AC, and FC families are also offered in T versions HCT, ACT, and FCT which have input thresholds that are compatible with both TTL and 3.3 V CMOS signals. [ Although the 7400 series was the first de facto industry standard TTL logic family, second-sourced by several semiconductor companies, there were earlier TTL logic families such as the SUHL family, MC4000 MTTL family not to be confused with RCA CMOS , the DM8000 family, 9300 series, and the 8200 family. Hobbyists and students equipped with tools, a ' ' and a 5-volt could also experiment with digital logic referring to how-to articles in and which featured circuit examples in nearly every issue. [ The part numbers for 7400 series logic devices often use the following naming convention, though specifics vary between manufacturers. A two-figure secondary prefix, of which the two most common are 74 , indicating a commercial temperature range device and 54 , indicating an extended military temperature range Up to four letters describing the logic subfamily, as listed above e.g. For example SN74ALS245N means this is a device probably made by SN , it is a commercial temperature range TTL device 74 , it is a member of the advanced low-power Schottky family ALS , and it is a bi-directional eight-bit buffer 245 in a plastic through-hole package N . Often a part from a different 74x00 subfamily could be substituted in a circuit, with the same function and yet more appropriate characteristics for an application perhaps speed or power consumption , which was a large part of the appeal of the 74C00 series over the competing series, for example. five versions of the 74x54 4-Wide AND-OR-INVERT gates , namely 7454 N , 7454W, 74H54, 74L54W and 74L54N/74LS54, are different from each other in and/or function! [ At the time the 7400 series was being made, some European manufacturers that traditionally followed the naming convention such as / produced a series of TTL integrated circuits with part names beginning FJ. Part numbering is somewhat different from the Western series: the technology modifications were considered different series, and were identified by different numbered prefixes - 155 series is equivalent to plain 74, 131 series is 74H, 158 series is 74L, 531 series is 74S, 555 series is 74LS, and 1530/1531/1533 are 74F/74AS/74ALS respectively. the number distinguishes variants with different number of inputs, or different number of elements within a die - ЛА1/ЛА2/ЛА3 LA1/LA2/LA3 are 2 four-input / 1 eight-input / 4 two-input NAND elements respectively equivalent to 7420/7430/7400 Before July 1974 the two letters from the functional description were inserted after the first digit of the series. [ [
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Tuesday, November 30, 2010

New Look for: lm2575 datasheet

lm2575 datasheet


Vin : the positive input supply for the LM2575 step–down switching 2. ON/OFF : allows the switching regulator circuit to be shut down using logic level Get and download detailed of LM2575 Switching Regulator Pin Functions Description in the source: htckorea.co.kr . Tags: , , This entry was posted on Saturday, March 6th, 2010 at 12:37 am and is filed under . , , , , , , , , ,
lm2575 datasheet
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My first day and lm 7805 datasheet

lm 7805 datasheet


7805 General Description: The LM7805 three terminal positive regulator IC is available in the TO-220 package and with fixed output voltage 0f 5 Volt, making it essentially indestructible.
lm 7805 datasheet
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The New View a lm 34 datasheet

lm 34 datasheet


Asadar, teoretic, la tensiunea pe care i-am recomandat-o, daca ramane mai jos putin pe curba putere de iesire/tensiune daca nu ma insel, de acolo reiese ca la tensiunea asta pe 4 ohmi ar ajunge la ~75W/channel pentru 1% distorsiuni la /- 30V sa zicem pe la vreo ~60W cat are el nominal, ar obtine distorsiuni mai mici, cu rezerva suficienta de putere dar de care sa nu abuzeze!
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Friday, November 26, 2010

Review a cincinnati corruption here local ohio union

cincinnati corruption here local ohio union


Cincinnati is a city in the of and the county seat of . The population within city limits was estimated to be 333,200 in 2009 , making it the state's third-largest city. According to a 2008 Census Bureau estimate, the had a population of 2,155,137 making it the largest in Ohio surpassing , which ranks 26th , and the 24th most populous in the . Residents of Cincinnati are called Cincinnatians . Cincinnati is home to major sports teams, including the and the , and it sponsors annual events such as the tennis tournament, the , and the Thanksgiving Day race. Cincinnati is known for having one of the larger collections of nineteenth-century in the U.S., primarily concentrated just north of in an area known as . Over-the-Rhine, for many years a neighborhood of German immigrants, is one of the largest historic districts listed on the . [ Cincinnati was founded in 1788 by and . Surveyor also the author of named it Losantiville from four terms, each of a different language, meaning the city opposite the mouth of the . Ville is French for city , anti is Greek for opposite , os is Latin for mouth , and L was all that was included of Licking River . [ In 1790, , the governor of the , changed the name of the settlement to Cincinnati in honor of the , of which he was a member. The society honored General , who was considered a latter day , the farmer who was called to serve Rome as dictator, an office which he resigned after completing his task of defeating the . [ In 1802, Cincinnati was chartered as a . 1748–1811 , a Revolutionary War veteran from , , became the first mayor. Construction on the began on July 21, 1825, when it was called the Miami Canal, related to its origin at the . In 1827 the canal connected Cincinnati to nearby ; [ During this period of rapid expansion, of Cincinnati began referring to the city as the Queen city. In his poem Catawba Wine , wrote that the city was the Queen of the West . There were , where many blacks lost their homes and property, further in which an abolitionist press was twice destroyed, and more rioting in 1842. The , a baseball team whose name and heritage inspired today's , began their career in the 1800s as well. During the , Cincinnati played a key role as a major source of supplies and troops for the . Due to Cincinnati's commerce with and history of settlement by southerners from eastern states, many people in the area were Southern sympathizers . In July 1863, the Union Army instituted in Cincinnati due to the imminent danger posed by the Confederate . In 1879, , one of Cincinnati's major soap manufacturers, began marketing . After , Cincinnati unveiled a master plan for urban renewal that resulted in modernization of the inner city. [ In 1970 and 1975, the city completed and , respectively, as the baseball team emerged as one of the dominant teams of the decade. Three key players on the team , , and , as well as manager , were elected to the , while a fourth, , still holds the title for the most hits 4,256 in baseball history. [ The completion of several major new development projects enhance the city as it enters the early years of the new millennium. Cincinnati's beloved Bengals and Reds teams both have new, state-of-the-art homes: , opened in 2000; Cincinnati has received accolades for its quality of life: 1993, Most Livable City 1993 ; 2004, Number 5 as a U.S. arts destination, American Style Magazine 2004, Top ten Cities that Rock , magazine, April 2004; [ Cincinnati's spans parts of southern Ohio and northern Kentucky. According to the , the city has a total area of 79.6 square miles 210 km , of which, 78.0 square miles 200 km of it is land and 1.6 square miles 4.1 km of it 2.01% is water. Cincinnati is geographically located within the and is on the far northern periphery of the . [ Cincinnati belongs to a climatic transition zone, at the northern limit of the and the southern limit of the zone : Cfa/Dfa , respectively . July is the warmest month, with highs just above 86 °F 30 °C , reaching 90 °F 32 °C or above on 18 days per year, often with high dew points and humidity. [ is focused around , a popular public square and event location. [ Cincinnati is home to numerous structures that are noteworthy due to their architectural characteristics or historic associations including the , the , the , , and the . [ The city is undergoing significant changes due to and private investment, as well as the construction of the long-stalled . Nearly $3.5 billion has been invested in the urban core of Cincinnati including Northern Kentucky . [ Construction has begun on a new office building that will dominate the Cincinnati skyline. [ The city is governed by a , whose members are elected at large. Prior to 1924, city council was elected through a system of . A reform movement arose in 1923, led by another , . Beginning in 1957, all candidates ran in a single race and the top nine vote-getters were elected the 9-X system . In 1977, , later a notable television host, was chosen to serve one year as mayor. Cincinnati politics include the participation of the , the party with the third-longest history of winning in local elections. President Pro-Tem , , , Leslie Ghiz, Chris Monzel, Laure Quinlivan, Cecil Thomas, and Charlie Winburn. [ Because of its location on the Ohio River, Cincinnati was a border town between a state that allowed slavery, Kentucky, and one that did not, Ohio, before the . Some residents of Cincinnati played a major role in . lived in Cincinnati for a time, met escaped slaves, and used their stories as a basis for her watershed novel . Today, the , located on the Cincinnati riverfront in the middle of area between and , commemorates this era. [ Before the , Cincinnati's overall crime rate was dropping steadily and had reached its lowest point since 1992. In May and June 2006, together with the Hamilton County Sheriff, the Cincinnati Police Department created a task force of twenty deputies in [ . Mayor Mark Mallory is a member of the , a bi-partisan group with a stated goal of making the public safer by getting illegal guns off the streets. In 2009, the [ As of 2007, the city's population was 52.0% White 49.3% non-Hispanic-White alone , 46.5% African American, 0.9% American Indian and Alaska Native, 2.0% Asian, 1.0% from some other race and 2.4% from two or more races. The racial makeup of the city was 52.97% , 42.92% or , 0.21% , 1.55% , 0.04% , 0.63% from , and 1.68% from two or more races. The top 4 largest ancestries include 19.8% , 10.4% , 5.4% , 3.5% . About 18.2% of families and 21.9% of the population were below the , including 32.0% of those under age 18 and 14.8% of those age 65 or over. Despite the fact that this change was due to an official challenge by the city however, Mayor has repeatedly argued that the city's population is actually at 378,259 after a drill-drown study was performed by an independent, non-profit group based in The Cincinnati- - has a population of 2,155,137 people, making it the largest metropolitan area in Ohio and the 24th largest in the country. It includes the counties of , , , , and , as well as the counties of , , , , , , and , and the counties of , , and . [ Cincinnati is home to many major and diverse corporations such as , , owner of and , , , , , , , , owner of , , Systems, , Kendle International, DunnhumbyUSA, and 's United States headquarters are based in Cincinnati. The Cincinnati area is also home to neighboring city of , , General Cable Corporation suburb of , suburb of , suburb of , suburb of , suburb of , suburb of , suburb of and suburb of . three of the five Global 500 companies in the state of . The largest employer in Cincinnati is the , with 15,862 employees. [ The CPS district includes 16 high schools accepting students on a city-wide basis. The district includes public , including the first public Montessori high school established in the United States, . Cincinnati Public Schools' top rated school is , ranked 36th on Newsweek's list of best public schools. Cincinnati is home to the and . The is highly regarded, as well as the , which has many notable alumni, including , and . Xavier, a Jesuit university, was at one time affiliated with , the seminary of the Cincinnati Archdiocese. The Greater Cincinnati area has one of the original , and the 17-thousand-student-strong campus in , 8 miles 13 km SSE of downtown. is a vocational school which includes the , one of the best culinary institutes in the United States. [ In 2009 Cincinnati was listed fourth on CNN's Top 10 cities for new grads. [ Cincinnati's culture is influenced by its history of and Italian immigration and its geographical position on the border of the and . The was developed by immigrants from England and Germany who made the city a center of . [ Cincinnati is home to numerous festivals and events throughout the year, including: The , organized by the in late April. This floral event, endorsed by the , is staged at Symmes Township Park and claims to be the biggest outdoor flower show in the United States. , celebrating Cincinnati's German heritage, is the largest Oktoberfest in the US. The and since 1962 the Jazz Festival now Macy's Music Fest , held annually during July. The is a yearly music festival that takes place in many venues across downtown and . is commonly served by several independent chains, including , , , Empress Chili, , and . Cincinnati's heritage is evidenced by the many restaurants that specialize in schnitzels and . In August, 2008 magazine ranked Cincinnati as tenth in a list of America's Hard-Drinking Cities . [ Cincinnati is served by , a daily newspaper. Movies that were filmed in part in Cincinnati include , opening is shot from the Public Landing, and takes place in Cincinnati although only Boone County, KY is mentioned , , , , , , , , , , , , , , and . The sitcom , and its sequel/spin-off featured the city's skyline and other exterior shots in its credits, although was not filmed in Cincinnati. The city's skyline has also appeared in an episode of , which was set in Carey's hometown of . Cincinnati has given rise to popular musicians and singers , , , , , , , , , , , , , , , , , , , , , , , , and alternative Hip Hop producer call the region home. Cincinnati is the broadcasting home of WOXY, The Future of Rock & Roll Historically 97.7 or 97X : online and available on station 91.7-2. The city is home to the , , Cincinnati Boychoir and . The Greater Cincinnati area is also home to several regional orchestras and youth orchestras, including the . [ Cincinnati has seven major sports venues, two major league teams, six minor league teams, and five college institutions with their own sports teams. It is home to baseball's , who were named for America's first professional baseball team, the ; It is also home to three professional soccer teams, two outdoor teams, the Cincinnati Kings men's and Cincinnati LadyHawks women's , and one indoor team, the Cincinnati Excite men's . On , Cincinnati has the distinction of holding the traditional opener in baseball each year, due to its baseball history. [ CVG is the major serving the metropolitan area and is located across the river in . The airport is the fifth largest hub for and the largest for its subsidiary, . the Butler County Regional Airport, located between and , which ranks just behind Lunken in business jets and has the largest private aircraft capacity of the Cincinnati area; , a smaller airport located in ; and the , in . CVG Airport, along with the two other regional international airports, 78 miles 130 km and 128 miles 210 km northeast ], form an important regional transportation network. Cincinnati is served by the Metro city passenger bus system, operated by the SORTA . There is also rail service by with ticket offices and boarding stations at . Several freight railroads service Cincinnati, the largest being which operates a railroad yard west of . Other railroads include , which operates a large intermodal yard in the west end neighborhood of Queensgate and the which operates several small predecessor yards throughout the city. the Purple People Bridge because of its status as a pedestrian-only bridge as well as its color The Opened in 1866, this bridge was the prototype for the , also designed by Roebling. Cincinnati is served by three major . The city has an , which is the longest circle highway in the country , and a spur to , . It is also served by numerous U.S. highways: , , , , , , and . Cincinnati has an . The $411 million plan currently calls for using and upgrading existing rail lines and new diesel cars called diesel multiple units . Cincinnati is also currently planning to connect Downtown, and the area around the . , the port of Cincinnati is ranked 5th by trip ton-miles for an inland port. [ Cincinnati has seven A sister city relationship with was suspended in protest of irregularities in the . [ [ [ Stradling, David 2003 . Cincinnati: From River City to Highway Metropolis .
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Thursday, November 25, 2010

I had a fact about christmas day w

christmas day w


Christmas morning is a magical time, but what happens after the presents have been opened? For many families, the answer is both easy and a tradition: watch the Walt Disney World Christmas Day Parade! ABC airs the parade each Christmas morning and the show takes place in the Magic Kingdom for the most part, although there are clips from the other Disney theme parks. Many loved and recognizable Disney characters take part in the parade, including Mickey Mouse, Minnie Mouse, Goofy, Donald Duck, Pluto and more. The holiday decor is unmatched, with presents, lights, huge ornaments and a feeling of the Christmas spirit settling over the entire production. The annual parade has aired each year since 1982, with the notable exception of the year 2000, when the Disney special Tracking Santa ran on Christmas Eve, instead. Pre-registration for tickets to be in the audience during the taping of the Walt Disney World Christmas Day Parade is usually announced in late October, and quickly sell out. Keep an eye on the Disney news outlets for the 2010 ticket announcement this fall if you and your loved ones want to be part of this special Christmas spectacular. Whether you're one of the lucky few to get tickets or not, be sure to tune in Christmas morning for this heart-warming holiday event.
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Turn christmas day portuguese

christmas day portuguese


Hearty cries of Merry Christmas ring throughout India on 25th December. Goa, with its Portuguese heritage and a high number of native Roman Catholics as well as overseas visitors celebrates Christmas in a manner similar to the Western world. An overflowing tide of humanity lines up for the midnight mass, which is followed by an exchange of Christmas gifts and hearty feasting. Similarly, Christmas in Mumbai is a very happening time. A sizeable presence of Christians ensures that the city has its share of Christmas fun. During Christmas, the Seven Sister States of Arunachal Pradesh, Assam, Meghalaya, Manipur, Mizoram, Nagaland, and Tripura in the North East burst into delightful frenzy. On 25th December, circuses and Christmas carnivals electrify the day, while feasting and further merrymaking colour the night. The Christmas turkey or geese of the West is quite often replaced by curries and other regional delicacies of India. A noticeably sharp spurt in the during Christmas bears testimony to the fact that this occasion is a great time to plan your India travel.
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