MICROCHIP ATA5577M233SC-DBB

The ATA5577C is a contactless read/write Identification Integrated Chip (IDIC) for applications in the 125 kHz or 134 kHz frequency band. A single coil connected to the chip serves as the IC’s power supply and bidirectional communication interface. The antenna and chip together form a transponder or tag. The on-chip 363-bit EEPROM (11 blocks with 33 bits each) is read and written blockwise from a base station (reader). Data are transmitted from the IDIC (uplink) 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 serial base station commands (downlink), which are encoded as 100% amplitude modulated On-Off Keying (OOK) Pulse Interval Encoded (PIE) bit streams.

• Contactless Power Supply
• Contactless Read/Write Data Transmission
• Radio Frequency fRF from 100 kHz to 150 kHz
• Basic mode or Extended mode Compatible with T5557, ATA5567 Replacement for e5551/T5551 in Most Common Operation modes Configurable for ISO/IEC 11784/785 Compatibility
• Total 363 Bits EEPROM Memory: 11 Blocks (32 bits + 1 lock bit):
  • 7 x 32 bits EEPROM user memory, including 32-bit password memory
  • 2 x 32 bits for unique ID
  • 1 x 32-bit Option register in EEPROM to set up the analog front end:
    • Clock and gap detection level
    • Improved downlink timing
    • Clamp and modulation voltage
    • Soft modulation switching
    • Write damping like the T5557/ATA5567 or with resistor
    • Downlink protocol
  • 1 x 32-bit Configuration register in EEPROM to set up:
    • Data rate – RF/2 to RF/128, binary-selectable or
    • Fixed Basic mode rates
    • Modulation/coding – Bi-phase, Manchester, Frequency Shift Keying (FSK), Phase-Shift Keying (PSK), Non-Return-toZero (NRZ)
  • Other options:
    • Password mode
    • Max block feature
    • Direct Access mode
    • Sequence terminator(s)
• Blockwise write protection (lock bit)
• Answer-On-Request (AOR) mode
• Inverse data output
• Disable Test mode access
• Fast downlink (ceiling(~6 kbps) versus ~3 kbps)
• OTP functionality
• Init delay (~67 ms)
• High Q-Antenna Tolerance due to Build In Options
• Adaptable to Different Applications: Access control, Animal ID, Waste management
• On-Chip Trimmed Antenna Capacitor: – 250 pF/330 pF (±3%)
• Pad Options:
  • ATA5577M1C • 100 μm x 100 μm for wire bonding or flip chip
  • ATA5577M2C • 200 μm x 400 μm for direct coil bonding

• Access control
• Animal ID
• Waste management