chip: SLE 4442/SLE5542 Protocol standard: ISO 7816 256 bytes sa EEPROM organisasyon 32 protected memory composition 3-byte user password, ang ihap sayop password: 3 times Minimum Write/Erase time: 2.5ms Operating voltage: 5V Maximum supply current: 10mA Working temperature: -35℃ ~ + 80 ℃ Paglahutay: > 100,000 times Data Protection: > 10 mga tuig Kadako: CR80 86×54×0.88mm Material: PVC / PET / PETG / ABS,etc.