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TCA9406: Pin 1 Identification

Part Number: TCA9406

Hello,

I have seen TCA9406DCUR with two different markings but believe both to be correct. However can you clarify which is pin one for the two line F9 NZ marking? This has a shaded line but I'm still not clear which is pin 1.

Clear Pin 1 marking:

Question regarding which quadrant would be pin 1 along the shaded line:

Thank you for the help,

-Kyle