Rainbow Electronics ATA5577 User Manual

Features, Description

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NOTE: This is a summary document.
The complete document is available.
For more information, please contact
your local Atmel sales office.

Features

Contactless Power Supply

Contactless Read/Write Data Transmission

Radio Frequency f

RF

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)

High Q-antenna Tolerance Due to Build in Options

Adaptable to Different Applications: Access Control, Animal ID and Waste

Management

On-chip Trimmed Antenna Capacitor

Pad Options

– ATA5577M1

• 100 µm

×

100 µm for Wire Bonding or Flip Chip

– ATA5577M2

• 200 µm

×

400 µm for Direct Coil Bonding

1.

Description

The ATA5577 is a contactless read/write identification IC (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 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.

A complete datasheet with further technical data is available on request. Please con-
tact your local sales office.

Read/Write LF
RFID IDIC
100 to 150 kHz

ATA5577

Summary

Preliminary

4967DS–RFID–10/08

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