Nsc 4bit magnitude comparators,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. This document is highly rated by students and has been viewed 501 times. As for the last line of the truth table, the outputs indicate that the a inputs are simultaneously greater and less than the b. These devices are fully expandable to any number of bits without external gates. Jun 05, 2019 the ic is commonly used by combining mod2 and mod8 to form a mod16 upcounter.
Operation is not restricted to binary codes, the device will work with any monotonic code. Electronic component search and free download site. The ic is commonly used in counting applications or in divide by 2, divide by 8 or divide by 16 designs. These 4bit magnitude comparators perform comparison of straight binary or bcd codes three fullydecoded decisions about two 4bit words a b are made. The modern integrated circuit version is typi ed by the famous 741 opamp. Dm7474 dual positiveedgetriggered dtype flipflops with preset, clear and complementary outputs. The max483, max487, max488, and max489 feature reduced slewrate drivers that minimize emi and. The cascading inputs come from the outputs of another 7485. If you wish to create a 16 bit magnitude comparator, the other 7485 connects to the least significant byte lsb. Dm74ls153 dual 1of4 line data selectorsmultiplexers. The serial shift right and parallel load are activated by separate clock inputs which are selected by a mode control input.
The data is transferred from the serial or parallel d inputs to the q outputs. Seven nand gates and one driver are connected in pairs. Jul 07, 2015 the 4bit comparator is mostly available in ic form and common type of this ic is 7485. In the addressable latch mode, data on the d input is written into the latch. Three fully decoded decisions are externally available at three outputs. Apr 20, 2020 datasheet of ic 7485 notes edurev is made by best teachers of. It accepts two 4bit binary words a1a4, b1b4 and a carry input c 0. The truth table on the following page describes the operation of the. Ic 7485 comparator function table datasheet, cross reference, circuit and application notes in pdf format. Dm74ls86 quad 2input exclusiveor gate physical dimensions inches millimeters unless otherwise noted continued 14lead plastic dualinline package pdip, jedec ms001, 0. The serial shift right and parallel load are acti vated by separate clock inputs which are selected by a mode control input.
Dm7486 quad 2input exclusiveor gate physical dimensions inches millimeters unless otherwise noted 14lead plastic dualinline package pdip, jedec ms001, 0. Onsemi low power schottky,alldatasheet, datasheet, datasheet search site for electronic. 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. Dm74ls85 4bit magnitude comparator physical dimensions inches millimeters unless otherwise noted continued 16lead plastic dualinline package pdip, jedec ms001, 0. Dm7474 dual positiveedgetriggered dtype flipflops with. Ic count can, is shown in the final figure of this data sheet.
Absolute maximum ratings noteif militaryaerospace specified devices are requiredplease contact the national semiconductor salesofficedistributors for availability and specificationssupply voltage7vinput voltage7voperating free air temperature rangedm54ls and 54ls datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. The nte7485 is a 4bit magnitude comparator in a 16lead plastic dip type package that performs comparison of straight binary and straight bcd 8421 codes. Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. Nsc, alldatasheet, datasheet, datasheet search site for electronic components and. Dm7474 dual positiveedgetriggered dtype flipflops with preset, clear and complementary outputs physical dimensions inches millimeters unless otherwise noted continued. This ic can be used to compare two 4bit binary words by grounding i ab, i a 7485 datasheet, 7485 circuit, 7485 data sheet. The least significant or only comparator in a chain should have i a b tied low and i ab tied high to compare more than 4 bits, connect the outputs to the expansion inputs of the next significant comparator. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to. Mm74c85 4bit magnitude comparator mm74c85 4bit magnitude comparator general description the mm74c85 is a fourbit magnitude comparator which will perform comparison of straight binary or bcd codes.
Aug 20, 2015 apr 20, 2020 datasheet of ic 7485 notes edurev is made by best teachers of. As for the last line of the truth table, the outputs indicate that the a inputs are simultaneously greater and less than the b inputs, which is contradictory. Dm74ls32 quad 2input or gate physical dimensions inches millimeters unless otherwise noted continued 14lead plastic dualinline package pdip, jedec ms001, 0. Refer to the maximum ratings table for safe operating area. Dm74ls90 decade and binary counters dm74ls90 decade and binary counters general description each of these monolithic counters contains four masterslave flipflops and additional gating to provide a dividebytwo counter and a threestage binary counter for which the count cycle length is dividebyfive for the dm74ls90. Additional terminals are provided for triggering or resetting if desired. Dm7405 hex inverters with opencollector outputs package number w14b 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. Operation of the amplifier can best be understood by noting that input currents are differenced at the inverting input terminal and this current then flows through the external feedback resistor to produce the output voltage. Synchronous operation is provided by having all flipflops clocked simultaneously, so that the outputs change togeth. They offer active low, high sink current outputs for driving indicators directly. Operation of the amplifier can best be understood by noting that input currents are differenced at the inverting input terminal and this current then flows. Nsc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors.
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