ATA5577 is a contactless read/ write identification IC (IDIC) for applications in 125-kHz or 134-kHz frequency band. 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 363-bit EEPROM (11 blocks with 33 bits each) can be read and written block-wise from a base station (reader). Data is 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 (OOK) pulse-interval-encoded bit streams.

Full revision datasheet with enhanced data is available: Datasheet.

Feature

•  High Performance IDIC® (Extended Read/Write Distance)
• Contactless Power Supply
• Contactless Read/Write Data Transmission
• Radio Frequency fRF from 100 kHz to 150 kHz
• Basic Mode or Extended Mode
• Compatible with E5551/T5551, T5557, ATA5567
• Configurable for ISO/IEC 11784/785 Animal and Waste Standards Compatibility
• Total 363 Bits EEPROM Memory: 11 Blocks (32 Bits + 1 Lock Bit)
• On Chip Trimmed Capacitor
• High Q-antenna Tolerance Due to Build in Options

 Application

• Hotel Key Card
• Access Control
• Time Attendance
• Animal Identification 
• Waste management standard (BDE)
• Programming to EM(Manchester) format or any other format customized

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