Part Number: CD4051B
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
User4411751,
The difference between G4 and G3 part is the material for the lead finish.
The other markings on the IC determine what year, factory, and lot the device came from.
Thank you,
Adam