Integrated circuits are the little black “chips”, found all over embedded electronics. The "pp" part of number tends to designate packaging. In most cases the information you need is found in the device’s datasheet. al. i wat to replace it and order or salvage from the old boards….is it okay to ignore the numbers on top? This video was fantastic. One type of such circuits, called an integrated circuit (abbreviated IC), is a combination of components like diodes, transistors, resistors, capacitors, and their interconnections, grown into one or more complete circuits. However, I often put these videos on my television. I use a heat gun and I can tell you hat Mike is right!!!,…. The ones that “look new” have scratches on the pins, which look like the chips were socketed into a Yamaha keyboard before recycling. It was sanded, painted black and a number imprinted on it. Maam, i have a question sorry im new to the electronics. The forums are retiring in 2021 and are now closed for new topics and comments. Another giveaway was many EPROMs have two unerasable bytes that identify the manufacturer (byte 1) AND the device code (byte 2) many programmers can read these bytes and decode them for you. Integrated circuits are chips which have many hundred electronic components on it, a lot of systems that would have used analogue parts are starting to use DSP processing to do the same thing. The amount of current flowing through it is regulated by the load of your circuit. Scopes were non existent in most workshops and if there was one, only the workshop manager got to use it. On the original 74xx series chips, this wasn't present at all, but as technology changed additional families were added. If by some chance the programmer can’t it will usually read back the two bytes as hex values which you can decode yourself by looking at manufacturer datasheets. First you need to locate the date code. You excel at getting newbies interested in electronics. Well done! This particular set of chips is "easy" because they have the "standard" string mm74fffNNNpp, a famous set of "TTL" part numbers that were standardized "back in the day" and continue to be used even for modern parts. Nice clear video, but why red on ground also no one ever seems to explain the reading of the different voltages this leaves the viewer or student very frustrated as we cannot correlate the readings only 0.001 or very low means a short to ground what about numbers from 12 to 600 please explain, many thanks for the video. Edit. Use a search engine such as Google to search for the IC part number and the word datasheet. The quickest way to identify the chip is to identify that it is a member of an IC family. Sometimes it’s just a normal printed dot. Can you show a cross section of a IC? “HiTASHI”?? Becuse when i look at the other 8 pin i.c. How do you Identify IC Chips? 19. My understanding and experience is that voltage regulators work by taking the voltage difference and converting it into heat. The integrated circuit contains in general a single chip with CPU, RAM, ROM, programmable nonvolatile memory (e.g., EEPROM), and (optionally) a cryptoprocessor. Step 1: Identification of Manufacturer. Dude those chips are 40 years old, of course they are easy to copy. Which I c chips do I remove are they all the same if they have three legs or more like ones attached to heat sinks thanks for the Inspiration! Integrated Circuit. Well It has pretty much bored me to death and the little dips, or dots, or whatever you want to call them on the lower left is to designate PIN 1! . I don’t mind using recycled chips in my projects but I want to know they are recycled. Examples: 8086, 80186,80286,80386,80486 Full part #: D8086, A80386DX-16 80xx based MCUs Examples: 8031, 8051, 8049, 8048, 80151, 80251. And to add to the confusion: TTL = transistor, transistor logic as opposed to CMOS which means complementary metal-oxide semiconductor. As far as grey market chips are concerned there are companies in distribution that buy huge numbers of popular chips when the LTB (last time buy) is announced. Electronic components consist of integrated circuit (IC) chips acquired from various vendors, printed circuit boards (PCBs), and other electromechanical parts. Rochester Electronics is a good example of this and used to be the “go to”people for obsolete parts and they are still my personal distributor of choice for obsolete parts. Can you do a video on how I’d are made using 3D animation. Counterfeit market is a big problem in these days.I buy only in thrusted sellers like Digikey, Newark or Mouser.I buy in two chinese thrusted sellers also. Loading. Awesome presentation thank you, I’ve always wondered how IC chips work, you made it quite clear thank you, the eprom was a deep mystery to me! I bet it’s a remarked chip, possibly 16MHz.I wish I know how to spot fake 68882 chips. Such a piece is called an Integrated Circuit (IC), because “integration’ means that the various components (transistors, diodes etc.) When I first started servicing Microcomputers, a Multimeter and Logic probe was all we were given. "fff" is the logic family. Google is your friend. These components are arranged or “integrated” into specific circuits on extremely small wafers called “chips”. :-P Never bought cheap microcontrollers again (lesson learned, as they were cheap for a reason). I've googled a few of them, without great results... What I'm wondering is: Does a website exist that has just a bunch of datasheets on ICs… If you have to remove chips by hand, you can use a utility knife and cut down both sides. Graham Bell’s invention of the telephone.Modest as he was I doubt he would see himself among the Greatest American inventors but to me that’s where he belongs. Hey mike on the low grade board the transistors (the ones usually attached to the alum heat sinks and steal ones are copper interesting thing is if you smash the casing and pull out the copper on it there’s a silver looking dot on it. I’d love to see a guide on 74xx-type logic gates. "mm" is a prefix usually related to the manufacturer. You are a cornerstone for this channel. I’ve been learning about them a bit for a project I’m working on, but I had a hard time finding a good overview. What I'm wondering is: Does a website exist that has just a bunch of datasheets on ICs? Usually the 4 digits are by themselves. Thanks for the video. Sorry im new to electronics…just wana learn something maam. An IC is a collection of electronic components resistors, transistors, capacitors, etc. Your question makes no sense. Makes sense in hindsight!Thanks for the video, truly useful stuff. What could possibly be? The process of identifying an IC chip may be confusing to you as there is no standard numbering system. Yes it can be the eject slot, but still, if the IC doesn’t have PIN 1 designated with the little dot, then that’s how you know which way it goes. Found this video randomly, interesting. The White backgrounds are blinding while on the television. This is because some legacy designs cannot be easily changed and if the chip jumps from £5 to £50 it’s still cheaper and easier than recertification. LMxx, LFxx, LHxx, CLCxx If you are working with chips, check out the Chip Directory. With few exceptions, all integrated-circuit (IC) chips contain transistors. You cheerfully demystify the functions of components and your projects demonstrate electronic principals clearly and concisely. Evidently the truth in advertisement does not carry over to “in advertisements”. I have 2 unknown microcontrollers (usual chinese sanded blank top) plastic package 2 x 14 pins (like atmega 328P) and I don’t know what are they: Microchip clone, Microchip genuine or some other chinese clones.