Atmel T5557
The T5557 is a contactless R/W IDentification IC (IDIC®) for applications in the 125 kHz frequency range. 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 blockwise from a reader.FEATURES
● Contactless Read/Write Data Transmission● Radio Frequency fRF from 100 kHz to 150 kHz
● e5550 Binary Compatible or T5557 Extended Mode
● Small Size, Configurable for ISO/IEC 11784/785 Compatibility
● 75 pF On-chip Resonant Capacitor (Mask Option)
● 7 × 32-bit EEPROM Data Memory Including 32-bit Password
● Separate 64-bit memory for Traceability Data
● 32-bit Configuration Register in EEPROM to Setup: – Data Rate - RF/2 to RF/128, Binary Selectable or - Fixed e5550 Data Rates – Modulation/Coding - FSK, PSK, Manchester, Biphase, NRZ – Other Options - Password Mode - Max Block Feature - Answer-On-Request (AOR) Mode - Inverse Data Output - Direct Access Mode - Sequence Terminator(s) - Write Protection (Through Lock-bit per Block) - Fast Write Method (5 kbps versus 2 kbps) - OTP Functionality - POR Delay up to 67 ms Multifunctional 330-bit Read/Write RF-Identification IC T5557
DESCRIPTION
A single coil, connected to the chip, serves as the IC’s power supply and bi-directional communication interface.