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 contact your local sales office.
Atmel T5577 Proximity card
Atmel T5577(update version which downward compatible with T5567). This 125KHz read/write RFID from Atmel is very mature and widely used technology. The card have 330-bit EEPROM(10 blocks. 33bits each).
The Atmel T5577 proximity card is great solution for hotel key lock. access control. time attendance system.
– IC manufacturer: Atmel
– Wafer die: Atmel T5577
– Function: Read/Write protect by password
– Memory: 330-bit EEPROM(10 blocks. 33bits each)
– Frequency: 125KHz
– RF protocol: N/A
– Modulation: FSK. PSK. Manchester. Biphase. NRZ
– Dimensions: CR80 85.60 x 53.98mm
– Thickness: 0.84mm
– Material: PVC. PET
– Card Surface: Matte/ gloss finish
– Housing: Lamination
– Working Frequency: 125KHz
– Reading Distance: 6cm typically
– Data storage time: 10 years ”
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