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ATA5575M1 Datasheet, PDF (1/7 Pages) ATMEL Corporation – Read/Write LF RFID IDIC 100 kHz to 150 kHz
Features
• Contactless Power Supply
• Contactless Read/Write Data Transmission
• Radio Frequency fRF from 100 kHz to 150 kHz
• 128-bit EEPROM User Memory: 16 Bytes (8 Bits Each)
• 8-bit Configuration Memory
• High Q-antenna Tolerance Due to Built-in Options
• Applications
– Access Control
• Standard Unique Format (Manchester, RF/64)
• 40-bitData Memory
• 14-bit Parity Memory
• 9-bit Header Memory
• On-chip Trimmed Antenna Capacitor
– 330 pF ±3%
– 250 pF ±3%
• Mega Pads 200 µm × 400 µm
• Mega Pads 200 µm × 400 µm with 25 µm Gold Bumps for Direct Coil Bonding
• Other Options:
– Direct Access Mode
– OTP Functionality
1. Description
The ATA5575 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. The antenna and
chip together 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 ATA5575 is an EEPROM-based circuit. It is optimized for maximum read range.
Programming is also possible, but the write range is limited.
The chip has to be locked after loading the application-specific data into the device.
Until the enable bits are set properly, the ATA5575M1 transmits all digits “0” in unique
format. Typical applications run at 125 kHz.
Read/Write
LF RFID IDIC
100 kHz to
150 kHz
ATA5575M1
Summary
Preliminary
NOTE: This is a summary document.
The complete document is available.
For more information, please contact
your local Atmel sales office.
9167AS–RFID–11/09
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