It can be seen that the ICs has been enclosed within the package 2-SFN.A package containing integrated circuit is called Tube.The mounting method is Surface Mount.There are a variety of integrated circuits for this type of Authentication Chip.In order to find similar integrated circuit systems, you should search for the family DS28E25.In the case of Authentication, Security, it is appropriate for the ICs to be applied there.It's recommended that you utilize it when the integrated circuit chip's temperature is below 85°C.integrated circuit systems should not operate below -40°C.2-SFN (6x6) packages the ICs complete.Memory type EEPROM for this integrated circuit chip.