pin numbers
Photos from an article about some different identifying marks on chips. You can read that article here.
numbering
pin numbers - 01
pin numbers - 02
pin numbers - 03
pin numbers - 04
pin numbers - 05
pin numbers - 06
pin numbers - 07
pin numbers - 08
pin numbers - 09
pin numbers - 10
pin numbers - 11
pin numbers - 12
pin numbers - 13
pin numbers - 14
pin numbers - 15
pin numbers - 16
pin numbers - 17
pin numbers - 18
pin numbers - 19
pin numbers - 20
pin numbers - 21
pin numbers - 22
pin numbers - 23
pin numbers - 24
pin numbers - 25
pin numbers - 26
pin numbers - 27
pin numbers - 28
pin numbers - 29
pin numbers - 30
pin numbers - 31
pin numbers - 32
pin numbers - 33
pin numbers - 34
pin numbers - 35
pin numbers - 36
pin numbers - 37