Integrated circuit marking codes

The IC product code, also known as the manufacturer code or part number, integrated circuit marking codes, is a unique identifier assigned to integrated circuits ICs by their manufacturers. These codes typically consist of alphanumeric characters and vary in length depending on the manufacturer's conventions.

We use cookies to provide our visitors with an optimal site experience. View our privacy notice and cookie notice to learn more about how we use cookies and how to manage your settings. By proceeding on our website you consent to the use of cookies. I have checked their site and was unable to locate that marking in a QFN package size. Im not sure if TI is the supplier for this part. The trick was the one Jeff showed above. A side note; Maxim used to have a little inconvenient habit to hide the package related information behind hyperlinks on datasheets.

Integrated circuit marking codes

Integrated circuits ICs come in many variants and are available from many manufacturers. ICs with similar functions can look very different, while ICs with different functions can look similar. The internal structure and mechanical tolerances of ICs can also be quite varied, and choosing the wrong IC can be detrimental to an electronic design. Engineers and designers need a clear way to differentiate between ICs for their projects. IC manufacturer codes give designers this information, allowing them to be confident in their component choices. IC manufacturer codes are identifying codes placed on integrated circuits by electronics manufacturers. Although IC manufacturer codes are meant to be unique, this is rarely the case. Many electronics manufacturers use the same manufacturer prefixes, and multiple standards exist for codes, depending on the region of the world a company resides in. Knowing the proper code for a component is vital to selecting the right parts for a project and finding reference datasheets. Designers may need to be aware of multiple manufacturer code standards, especially if a company has international ties.

Since full IC manufacturer codes are specific to parts and companies, the most common codes in design change often. In this context, "74" specifically denotes that the IC is a commercial-grade member of the series.

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Last updated: July 3, It was about the same length and weight as two to three double-decker buses and contained 18, buzzing electronic switches known as vacuum tubes. Despite its gargantuan size, it was about a billion times less powerful than a modern laptop—a machine about times smaller. If the history of computing sounds like a magic trick—squeezing more and more power into less and less space—it is! What made it possible was the invention of the integrated circuit IC in It's a neat way of cramming hundreds, thousands, millions, or even billions of electronic components onto tiny chips of silicon no bigger than a fingernail.

Integrated circuit marking codes

This data base is only a couple of years old judging from the Wayback Machine, but seems to be fairly exhaustive and can be found referenced in quite a few electronics forums. Unlike their larger SMD siblings, these chips in question are so small that there is no room to print the entire part number on the device. Instead, the standard practice is for manufacturers use an abbreviated code of just a few characters. And just because it is standard practice does not imply the marking codes themselves follow any standard whatsoever. Several sites like the one [JohnK] found have been around for years, and adding yet another database to your toolbox is a good thing. But none of them will ever be exhaustive. Just finding the part marking information for a known chip can be difficult. Some manufacturers put it clearly in the data sheet, and some refer you to other documentation which may or may not be readily available. And some manufacturers ask you to contact them for this information — presumably because it is dynamic changes from time to time. As a quick example of the pitfalls encountered when using these reverse lookups databases, consider two small-footprint SMD parts from a Tiny FPGA module that is sitting on my desk.

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Placing an order. Contact e-mail eturuta gmail. Part marking is tc5. Model to chassis cross reference. Here are the key characteristics of the IC:. We have more than Integrated circuit - power audio amplifiers edition. Over 2. Complete the Numbering: Ensure all pins are numbered sequentially, moving around the IC in a counterclockwise direction until all pins are accounted for. The JEDEC standards are open-source and contain an extensive list of hex codes for various companies.

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A monthly updated online database that includes now more than These specifications make the IC suitable for a wide range of applications in various electronic circuits. Search Our Blog. Power supply schematic. This allows for more extensive or complex programs to be stored externally and loaded into the IC as needed. Number Counterclockwise: Continue numbering the pins counterclockwise around the IC. We have more than View our privacy notice and cookie notice to learn more about how we use cookies and how to manage your settings. JEDEC standards for internal hardware IC manufacturer codes mandate that each code must contain one or more eight-bit fields, translated into hex, for indexing and reference. Service manuals contents. By understanding this format, you can determine the manufacturing date of the IC based on its date code. I looked at every SMD list I could find. Start at Pin 1: With the orientation determined, Pin 1 is typically located closest to the mark and is numbered first.