DescriptionWritable RFID Tag – Atmel T5557 125kHz Key Tag/FobThe Atmel T5557 RFID Tag is a rewritable 125 kHz proximity transponder designed for secure and flexible access control applications. Built around the Atmel T5557 chip, this tag supports multiple data encoding formats and can be easily reprogrammed for use in a wide range of RFID systems. Its compatibility with most 125 kHz RFID readers makes it a reliable choice for facility management, identification, time attendance systems, and cloning operations.Chipset: Genuine Atmel T5557Operating Frequency: 125 kHz (compatible with 100 kHz–150 kHz range)Memory:330-bit EEPROM7x 32-bit EEPROM data blocks (including a 32-bit password)Separate 64-bit memory for traceability data32-bit configuration registerRewritable EEPROM: Supports up to 100,000 write cycles for flexible data storage and reprogramming.Data Retention: Maintains stored data for over 10 years.Read Range: Typically 2–10 cm (varies based on reader)Compatibility: e5550 binary compatible or T5557 extended modeApplications: Secure cloning, access control, time tracking, and other RFID-based systems.Applications:Access control and security systemsEmployee or visitor identificationRFID cloning and testingAttendance and time tracking solutionsEnhance your RFID infrastructure with the rewritable Atmel T5557 tag—durable, programmable, and fully compatible with 125 kHz systems. Available for reliable shipping across Lebanon.
