Chip: SLE 4442/SLE5542 Protocol standard: ISO 7816 256 bytes na EEPROM kungiyar 32 protected memory composition 3-byte user password, da kalmar sirri kuskure count: 3 times Minimum Write/Erase time: 2.5ms Operating voltage: 5V Maximum supply current: 10MA Zazzabi mai aiki: -35℃ ~ + 80 ℃ Jimrewa: > 100,000 sau Kariyar Bayanai: > 10 shekaru Girman: CR80 86×54×0.88mm Material: PVC / Pet / PETG / ABS,da dai sauransu.