The T5557 is a contactless R/W IDentification IC (IDIC) for applications in the 125KHz frequency range. A single coil, connected to the chip, serves as the IC's power supply and bi-directional communication interface. The antenna and chip together form a transponder or tag. The on-chip 330-bit EEPROM (10 blocks, 33 bits each) can be read and written block-wise from a reader. Block 0 is reserved for setting the operation modes of the T5557 tag. Block 7 may contain password to prevent unauthorized writing. Data is transmitted from the IDIC using load modulation. This is achieved by damping the RF field with a resistive load between the two terminals Coil 1 and Coil 2. The IC receives and decodes 100% amplitude modulated (OOK) pulse interval encoded bit streams from the base station or reader.
Rfid-T5557/T5567 card
Product Description
- chip:Atmel T5567/T5557
- Storage Capacity:330bit
- Operating frequency: 125KHz
- Read Distance:3~
- Dimension:ISO standard (
- Data Storage Duration:More than 10 years
- PVC or PET material, be available with offset printing, silk-screen printing
-Typical Application:RFID locker, "One-Card Solution" for School/Campus Management, Access Control,Dining Card ,Staff Attendence,Health Insurance Card ,Game card,Phone Card,Gas Card,Theater card,Entertainment card.