Hello!
MAX4821EUP+T and other chips, there is a line on pin 1 Some models do, some don't. Perhaps there is a document explaining how to recognise reality, and not, for example, a fake.
MAX4821
Production
The MAX4820/MAX4821 8-channel relay drivers offer built-in kickback protection and drive +3.3V/+5V nonlatching or dual-coil-latching relays. These devices...
Datasheet
MAX4821 on Analog.com
Hello!
MAX4821EUP+T and other chips, there is a line on pin 1 Some models do, some don't. Perhaps there is a document explaining how to recognise reality, and not, for example, a fake.