Package markings

Typical package markings include a pin 1 stripe and/or pin 1 dot, the company logo, and up to four lines of text, described below.

Product name including the package ordering code, for example, 74LVT2244D.
Note that commercial FAST products are marked without the N prefix, while industrial FAST products are marked with the I prefix.

Batch information for tracing lot history, for example, B38090ME.

The first 3 letters contain codes to indicate the diffusion center, the assembly center, and the final-test center of the device. The 4 numbers that follow indicate the assembly date code in the format YYWW. The next character is an alpha-numeric code representing the revision of the silicon die contained within the package. The final letter indicates the release status of the product as follows:

An example might be: HRn9744 F X.

Optional text.

On smaller packages, the markings may be condensed to two lines or even one line. Truncation of characters within a line may also occur on small packages.

• PicoGate and MicroPak Package Markings (Single-, Dual-, and Triple-Gate Logic)
• Semiconductors Marking Codes Tool

• Identification Labels

• Logic Product Naming Conventions
• Standard ICs Diffusion Centers
• Standard ICs Assembly and Final-Test Centers