Chip vs Chip
MIFARE Classic 4K vs ST25DV
MIFARE Classic 4K offers 4096 bytes memory with Crypto-1 (broken) security, making it ideal for legacy transit with stored value, multi-application cards. ST25DV provides 4-64 Kbit with 64-bit password + configurable areas security, suited for IoT sensors, smart labels, energy harvesting, BLE pairing.
MIFARE Classic 4K
제품군MIFARE
메모리4096 bytes (user: 3440 B)
가격$0.120 – $0.250
ST25DV
제품군ST25
메모리4096 bytes (user: 4096 B)
가격$0.400 – $1.000
추천
Choose MIFARE Classic 4K when you need largest Classic with 4 KB memory; choose ST25DV when you need dual-interface (NFC + I2C) with energy harvesting.