Chip Capacity: AT24C01A chip: 1Kb AT24C02 chip: 2Kb AT24C04 chip: 4Kb AT24C08 chip: 8Kb AT24C16 chip: 16Kb AT24C32 chip: 32Kb AT24C64 chip: 64Kb AT24C128 chip: 128Kb AT24C256 chip: 256Kb AT24C512 chip: 512Kb Protocol standards: ISO/IEC7816-3 Reading time: 1~5ms Working temperature: -20℃~+80℃ Endurance: > 1,000,000 times Data retention: > 40 years Card materials: PVC/PET/PETG Card dimensions: 85.5×54×0.88mm Card weight: 6g~6.6g