The ATMEL T5557/T5567 induction card is one of many RF cards, packaged in the original TEMIC5557/5567 chip imported by ATMEL. But due to the unique and stable performance of its chip, as well as good encryption performance, its application adaptability is very good. T5557/5567 non-contact IC thin card, composed of IC chip and induction antenna, is pressed into international standard size cards through high-temperature lamination process. It is the preferred RFID product for induction smart door locks, channel systems, attendance systems, identity recognition, property identification, process control, parking, logistics, animal recognition, identity recognition, industrial automation, conference sign in, electronic tags, supermarkets, warehouse management, personnel management, security systems, etc. Additionally, we can package the T5557/5567 chip into various shaped cards. Cards can be pre printed with high-quality offset/screen printing in the factory, or personalized printed with small printers.

——IC characteristics of T5557/5567
Operating frequency at 125KHZ, non-contact card type
330 bit EEPROM
64 bit ID number
There is an 8-digit password setting and write protection
The reading method can be set by the user
Anti-collision
Built in capacitors can be masked or equipped with external capacitors
Unique 64 bit serial number with traceability
IC operating temperature -40 ℃ to+85 ℃
Read and write distance: 3-10CM
Erasing lifespan: greater than 100000 times
Data retention time: 10 years
Size: ISO standard card 85.5 × 54 × 0.80/thick card 85.6 × 54 × 1.80MM
Packaging materials: PVC, ABS

——Memory of T5557/5567
The 330 bit EEPROM storage is divided into 10 blocks, each with 33 bits, including a 1-bit LOCK flag, which is programmable. Block 0 of page 0 contains mode/configuration data and is not transmitted during rule reading. Block 7 of page 0 can be used as a write protected password. The 0 bit of each block is the lock bit of this block. Once locked, the data of this block is read-only and cannot be rewritten. Page 1 contains traceability data, read-only.

——Traceable data structure for T5557/5567
Blocks 1 and 2 on page 1 contain traceability data and are programmed during product testing. The most important byte of block 1 is fixed as' E0h ', which is at the classification level defined in the standard ISO/IEC 15963-1; The second byte is therefore defined as ATMEL's vendor ID'15h '; The next 8 bits (ICR) are used as data related to the IC, with the top 3 bits defined as the version of the IC and/or manufacturer, and the bottom 5 bits default to '00h' or can be set according to customer specific requirements. The next 40 bits are the unique serial code, divided into 5 decimal bits lotID and 20 bits DPW