Description
The Atmel® ATA5570C 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 ATA5570C tag. Block 7 may contain a password to prevent unauthorized writing.

FEATUREs
• Contactless Read/Write Data Transmission
• Sensor Input RS > 100kΩ (Typical) => Data Stream Inverted
• Radio Frequency fRF from 100kHz to 150kHz
• e5550 Binary Compatible or ATA5570C Extended Mode
• Small Size, Configurable for ISO/IEC 11784/785 Compatibility
• 7 x 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 Atmel e5550 Data Rates
   – Modulation/Coding
      • FSK, PSK, Manchester, Bi-phase, NRZ
   – Other Options
      • Password Mode
      • Maximum 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 (5Kbps versus 2Kbps)
      • OTP Functionality
      • POR Delay up to 67ms