There is no datasheet to be found in the Web for the ATL A2188, used in PS/2 optical mice.
I managed to identify all but pin 3 which seems not used in actual circuits (at least in those that I could check).
For anyone interested in the future, here is the pinout.
I managed to identify all but pin 3 which seems not used in actual circuits (at least in those that I could check).
For anyone interested in the future, here is the pinout.
