EM4305 rewriteable blank card

Descripción

Key Technical Features:

Chip Type:
Low-frequency RFID IC utilising CMOS technology; operating frequency is 125 kHz (with partial support for 100–150 kHz); compliant with ISO 11784/11785 standards and compatible with the FDX-B animal identification protocol.

Memory Structure:
512-bit EEPROM, organised into 16 blocks of 32 bits each.
Supports a 32-bit Unique ID (UID), 32-bit read/write password protection, and a 10-bit user-defined code.

Security Mechanisms:
Sectors can be protected against unauthorised reading and writing via a 32-bit password.
Supports “lock bit” configuration, allowing EEPROM data blocks to be set to read-only mode to prevent unauthorised modification.

Communication Features:
Supports multiple encoding schemes: Manchester, Bi-phase, Miller, etc.
Multiple data transmission rates are selectable (e.g., RF/8, RF/16, RF/32, RF/64).
Requires no external capacitors; features built-in rectification and voltage-limiting circuits to reduce hardware design complexity.

Durability:
Endurance rating of over 100,000 read/write cycles.
Data retention period of up to 10 years.
Wide operating temperature range of -40°C to +85°C, suitable for harsh environments.