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LTC489ISW Marking

Category: Hardware
Product Number: LTC489ISW

Hi,

I would like to receive information about the marking codes of the Quad RS485 Line Receiver LTC489ISW and the meaning of this different markings:

 

LTC489ISW

1623 e3

J03379

  

LTC489ISW

1226

N77086 e3

Thanks in advance