Chip vs Chip

MIFARE Classic 1K vs ST25DV

MIFARE Classic 1K offers 1024 bytes memory with Crypto-1 (broken) security, making it ideal for legacy transit cards, access control (legacy systems). ST25DV provides 4-64 Kbit with 64-bit password + configurable areas security, suited for IoT sensors, smart labels, energy harvesting, BLE pairing.

추천

Choose MIFARE Classic 1K when you need massive installed base, widely available; choose ST25DV when you need dual-interface (NFC + I2C) with energy harvesting.