Atmel ATA5575M2 Read/Write LF RFID IDIC 100kHz to 150kHz DATASHEET Features Contactless power supply Contactless read/write data transmission Radio frequency f from 100kHz to 150kHz RF 128-bit EEPROM user memory: 16 Bytes (8 Bits each) 8-bit configuration memory High Q-antenna tolerance due to built-in options Applications Animal ID, waste management, industrial identification ISO/IEC 11784/785 compatibility FDX-A FDX-B On-chip trimmed antenna capacitor 330pF 3% 250pF 3% Mega pads 200m x 400m Mega pads 200m x 400m with 25m gold bumps for direct coil bonding Other options: Direct access mode OTP functionality 9217CRFID12/111. Description The Atmel ATA5575M2 is a contactless read/write identification IC (IDIC) for applications in the 100-kHz to 150-kHz frequency band. A single coil connected to the chip serves as the IC s power supply and bi-directional communication interface. This antenna coil together with the chip form a transponder or tag. The on-chip 128-bit User EEPROM (16 bytes with 8 bits each) can be read and written byte-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. The Atmel ATA5575M2 is an EEPROM-based circuit. It is optimized for maximum read range. Programming is also possible but the write range is limited. The typical animal ID application conforming to ISO11784/85 is read-only and operates at 134.2kHz. The Atmel ATA5575M2 thus has to be locked after programming the animal-specific code. 2. System Block Diagram Figure 2-1. RFID System Using Atmel ATA5575M2 Tag Transponder Power Reader or Memory Base station Data Atmel ATA5575 3. Atmel ATA5575M2 - Functional Blocks Figure 3-1. Block Diagram POR Modulator Coil 1 Mode register Memory (136-bit EEPROM) Controller Coil 2 Input register Test logic HV generator Atmel ATA5575M2 DATASHEET 2 9217CRFID12/11 Analog front end Data-rate Write generator decoder Coil interface Controller