[myself248]

Did you read the datasheet or are you responding to your imagination?

Anyway, there's a litany of similar devices to fill whatever requirements you wish. SIM cards, for instance, are available in WSON8 MFF2 chips that you can directly solder to a board.

[triactual]

Why are you so rude? I am a hardware engineer and I’m explaining how you establish trust with hardware devices. This information isn’t contained in a single data sheet, it spans an entire global supply chain.

A SIM card is just one way to do exactly what I described. It’s expensive and probable not a good choice for small, cheap devices. Not to mention brings along a whole host of associated security complexity.