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TS5A3157: TS5A3157DCKR Pin 1 marking on package

Part Number: TS5A3157

Hello Team,

For our EMS (and us) it is not 100% clear how the packeage is marked for Pin 1.

In datasheet is only a hint if pin 1 in TAPE AND REEL INFORMATION on site 25. No description of marking.

On real part there is a line at one side of the IC and a point at one edge.

On picture you ca see it. It is the smaller IC at the right side.

What is the Pin 1?

Best Regards, Marcus