Tutorial making a digital counter up 0 to 9 using ic 7490. I was just wondering if anyone could verify my schematic if the circuit would work out smoothly. What can i use to substitute a 7490 decade counter ic chip. Unfortunately, your browser is not javaaware or java is disabled in the browser preferences. Some ttl logic parts were made with an extended military specification temperature range. Design counter circuits in the experiment item 2, 4 and 6 and write the circuits down to.
Permission is granted to copy, distribute andor modify this document under the terms of the gnu free documentation license, version 1. The following is a list of 7400 series digital logic integrated circuits. Download ic datasheet in pdf format and read the integrated circuits specifications from the datasheets. This can be made much smaller than a discrete circuit made from independent components. Ttl compatible inputs, outputs no external resistors. Seconds r count gate time the sn7490 is advanced, sn7490 is decoded to select via the sn74153s first digit two data, then digit one data is selected which, which disables the load counter sn74151. Decade, dividebytwelve and binary counters datasheet rev. Anderungen an verlinkten seiten spezialseiten permanenter link seiteninformationen wikidatadatenobjekt artikel zitieren.
Texas instruments ttl data book datasheet, cross reference, circuit and. As on semiconductor has exited the fast ttl business, all fast data sheets have been removed from this publication. Because of the popularity of these parts, they were secondsourced by. The original 7400series integrated circuits were made by texas instruments with the prefix sn to create the name sn74xx. Fast and ls ttl data sn5474ls90 sn5474ls92 sn5474ls93 functional description the ls90, ls92, and ls93 are 4bit ripple type decade, dividebytwelve, and binary counters respectively. According to my 1976 ttl data book remember those, guys and gals, to get a bcd count sequence, you need to connect qa pin 12 to input b pin 1.
Production data information is current as of publication date. The 74 series is often still called the ttl series even though the latest ics do not use ttl. Seminconductor databook 1990, alsls logic ttl 74er digital data dictionary. If youre wanting to design ttl circuits, this book will be a must. Some ttl logic parts were made with an extended militaryspecification temperature range. Ic 7490 datasheet pdf decade and binary counters, 7490 datasheet, 7490 pdf, pinout, data, circuit, ic, manual, substitute, parts, schematic, equivalent. Ls ttl data formerly titled fast and ls ttl data dl121d rev.
Depending upon how the two counters are connected, various results can be obtained. List of 7400 series integrated circuits 1 list of 7400 series integrated circuits the following is a list of 7400 series digital logic integrated circuits. Schottky and lowpower schottky data book, advanced micro devices, july 1978. Circuit characteristics ece undergraduate laboratory. The 7490 is a decade counter, meaning it is able to count from 0 to 9 cyclically, and that is its natural mode. Ttl 7490 74ls90 equivalent 7490 bcd counter configuration 74ls90 7490 pin configuration internal diagram of 7490 10 pin ttl 7490 data 7490 ls90 7490 diagram text. This applet shows the internal structure of the ttlseries 7490 1. I attempted to make a schematic of a 7490 7447 24hour digital clock based on research. Electronics club 74 series logic ics families, 74hc. Decade, dividebytwelve and binary counters, 7490 pdf download texas instruments, 7490 datasheet pdf, pinouts, data sheet, equivalent, schematic. An integrated circuit or monolithic integrated circuit also referred to as an ic, a chip, or a microchip is a set of electronic circuits on one small plate chip of semiconductor material, normally silicon.
Another handy reference for the design engineer is the section on ic sockets and inter connection panels from ti. It has the pinouts and indepth specifications for texas intruments standard ttl, schottky, and lowpower schottky digital logic chips. In addition to offering the standard ls ttl circuits, motorola offers the fast schottky and ttl family. Complete specifications for each of these families are provided in data sheet form. Complete specifications for each of these families are. Logic gates free delivery possible on eligible purchases.
It can be used as %2 single flip flipand %5 counter a 3 flip flop mod 8 ripple counter converted to mod 5 separately if you want. An electronics hobbyist could easily spend several hundreds of dollars for a complete set of data books from major electronics companies. It would be great for a hobbyist, and a necessity for a developer using these chips. Products and disclaimers thereto appears at the end of this data. Etc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Ttl data book for design engineers smc electronics. Nov 28, 2006 i have seen various threads with ttl requests regarding how to and build a ttl clock or counter with discrete components. The sn7400 series originated with ttl integrated circuits made by texas instruments. Ttl clock with 7447 7490 and 7400 ics electronics forum. This applet shows the internal structure of the ttl series 7490 1. Buy 5 pcs of 74ls90 7490 logic ic decade counters integrated circuit. The 74hc family has highspeed cmos circuitry, combining the speed of ttl with the very low power consumption of the 4000 series. Each of these monolithic counters contains four master slave flipflops and additional gating to provide a divideby two counter and a threestage binary.
Dm7408 quad 2input and gates physical dimensions inches millimeters unless otherwise noted 14lead plastic dualinline package pdip, jedec ms001, 0. They are cmos ics with the same pin arrangements as the older 74ls family. For further assistance, please contact your local on semiconductor representative. Ttl series counters 7490,7492,7493 the image above shows a thumbnail of the interactive java applet embedded into this page. Etc package contains a dividebytwo and a dividebyfive counter,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Package contains a dividebytwo and a dividebyfive counter, 7490 datasheet, 7490 circuit, 7490 data sheet. Each device consists of four masterslave flipflops which are internally connected to provide a dividebytwo section and a. The counter consists of a first stage based on a single jkflipflop 1.
The following is a list of 7400series digital logic integrated circuits. In this icdatabook software you will find pin assignments, connection layouts, function tables and the most important specifications available for the 40x and the 74x ic series. That is, qa, qb, qc and qd are 4 bits in a binary number, and these pins cycle through 0 to 9, like this. Ttl 7490 mod 26 counter using 7490 7490 mod 16 up down counter 7490 mod 16 up down counter data sheet mod 6 counter using 7490 7490 pin. Ic ttl 7400 ic 7400 pdf ttl 7490 ic 7404 datasheet data sheet ic 7408 hewlettpackard part number industry standard part number 1876. This book presents technical data for a broad line of ttl integrated circuits. The counter consists of a first stage based on a single jkflipflop. Every attempt is made to ensure the data listed is accurate. The most important tradeoffs are weighted against each other. The 74hct family is a special version of 74hc with 74ls ttlcompatible inputs. Although this volume offers design and specification data only for ttl integrated circuits, complete technical data for any tl semiconductorcomponent products. They must have been sold for a very short time because they dont appear in my ttl data book but the mullard data sheets are dates 1970, just a little older than my book.
It counts the input pulses and the output is received as a 4bit binary number through pins a, b, c and d. The ttl data book for design engineers, second edition, texas instruments, 1976. In the actual software version are already the data of more than 230 different ics. Important notice texas instruments incorporated and its subsidiaries ti reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Ttl msi 9350 decade counter description the ttl msi 9350 is a monolithic decade counter. Fast and ls ttl data fast and ls ttl low power schottky lsttl has become the industry standard logic in recent years, replacing the original 7400 ttl with lower power and higher speeds. Oct 12, 2015 ic 7490 datasheet pdf decade and binary counters, 7490 datasheet, 7490 pdf, pinout, data, circuit, ic, manual, substitute, parts, schematic, equivalent. The circuit is a variable pulse generator which uses a 555 timer, 3 7490 decade counters, a 100k pot, a. For each ic there is a diagram showing the pin arrangement and brief notes explain. In fact most ics in regular use are quite tolerant and earthing your hands by. Datasheet of 7490 ic ic 7490 data sheet datasheet of ic 7490 ic 7490 datasheet ic 7490 circuit of 7490 ic data sheet ic 7490 7490 ic data sheet oval green led 5mm text.
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