RFID chip stands out from the herd

Edited by the Electronicstalk editorial team Feb 17, 2005

The EM4569 is a 125kHz, 512bit contactless identification CMOS RFID IC intended for use in electronic read/write RF transponders.

The EM4569 is a 125kHz, 512bit contactless identification CMOS RFID IC intended for use in electronic read/write RF transponders.

The EM4569 offers versatility and security with several datarate and data encoding options available at a decreased level of power consumption.

This high-performance passive RFID IC saves cost and increases reading distance, making it extremely useful for animal identification (ISO11784/5).

With a significantly larger coil pad size, the EM4569 is the enlarged pad version of the EM4469.

The enlarged pads allow for direct antenna connection via bumps deposited on the enlarged pads so the customer can directly solder the wire of the antenna on the EM4569 without the need of PCB support.

Such pads also reduce the cost as the IC requires fewer handling operations.

In addition to its consumer-friendly price, the EM4569 has unmatched performance in terms of detection range.

"In a recent field trial using long-range animal readers, the EM4569 embedded in an ear-tag format was read at a distance of up to 1m, considerably more than other conventional RFID tags", explains Mougahed Darwish, President of the Management Board of EM Microelectronic.

"Additionally, the EM4569 is compliant with ISO11784/5 and has biphase RF/32, making if very functional in the animal world".

The EM4569 has already been adopted by several tag manufacturers and is currently in field trials in North America.

For cattle in England, one identification tag is required, allowing each cow to be tracked throughout its life.

Many farms there also use a second tag to identify age and medical history.

Although identification tags are not required by law in the USA, they are a very important management tool.

Ear tags provide a safe and more efficient alternative to other forms of branding or marking.

EM Microelectronic promotes this technology by introducing products such as the EM4569, which make electronic identification easier and much more cost effective.

The EM4569 combines the following features: 512bit EEPROM organised in 16 x 32bit; 32bit password read/write protection; 32bit unique identification number (UID); 10bit customer code; ISO11784/ISO11785 standard compliant; lock feature converts EEPROM words in read only; multipurpose encoding (Manchester, biphase, Miller, PSK, FSK); multipurpose datarate from 1 to 32Kbaud; 100 to 150kHz frequency range; on-chip rectifier and voltage limiter; no external supply buffer capacitor needed; and a wide -40 to +85C temperature range.