Printable Contact Card

Product Introduction:

The printable contact card uses the imported Siemens SLE4448 chip, which has the advantages of write protection and logic encryption.

Function:

1. SLE4428 has a capacity of 1K bytes and an address space of 0~1023.
Except for the password, all data can be read out in any case. After checking correctly, the password can be read.
After checking the correct password, all data including the password itself.
4. All data can be write-protected by byte. After protection, the data is solidified and cannot be changed in any way.
5. There is a password error counter. The address is 1021. The initial value is 8. If the password is checked incorrectly once, it will be reduced by 1. If the counter value is 0, the entire card data is locked by the project, and it can only be read out. The password cannot be written or changed, and it cannot be checked again; if it is not 0, only one correct check is required, and the counter will be restored to the initial value.
6. The password length is 2 bytes, and the addresses are 1022 and 1023. There are 216 combinations in total. The result of reading these two addresses is 00 before the password is checked correctly; it cannot be written or changed; after the password is checked correctly, the password can be read or changed, and the password will be valid until the card is powered off.
7. Unique code. Addresses 21~26 are the card user code, which is the only user code in the world, protecting the interests of users to the greatest extent. This code cannot be changed after being solidified.
8. Addresses 0~7, 21~26 are solidified by the manufacturer before leaving the factory and cannot be changed.

Main indicators of SLE4428 chip card:

> 1024 bytes of EEPROM

> Write protection area (hardened data) 1024 bytes

> 2-byte password, error count 8 times

> Temperature range: -35℃ ~ +80℃

> Erase and write at least 100,000 times

> Data retention period at least 10 years

Product Parameter:

Package：

 200 pcs card in a white hard box

Company Profile:

JingZhou Syntek Smart Technology Co.,Ltd established in 2006,which are specialized in RFID Card.

We have advanced equipment recognized by international organizations, including high-speed coding machines, automatic butt welding, ultrasonic winding machines, IC-card automatic packaging machines, CNC laminating machines, and DOD inkjet printers.

We can achieve fast and accurate delivery time.

The workshop adopts 6S management, ISO procedures standardize the production process, and strictly controls the shipment accuracy rate to 100%.

Product stability is reliably guaranteed, thus winning same praise from new and old customers at home and abroad.

FAQ：

1.Q:Is the SLE4428 Chip card safe ?

    A:‌The SLE4428 chip card has three security mechanisms: User password, unique code, and write-hardening. If the password is not checked correctly, data cannot be written, and once write-protected (hardened), it cannot be changed. The system uses a unique code logo to avoid the same logo counterfeit card model breaking into the system.

2.Q:What's the application of the SLE4428 Contact Card ?

     A:At present, SLE4428 chip cards are mainly suitable for telecommunication cards, IP integrated circuit cards, membership cards, electronic tickets,  VIP cards, medical care, insurance, transportation, schools, etc.

3.Q:What are the precautions of the Printable Cantact Card ?

   A:1. The SLE4428 chip card can read the data of the entire card without a password. When doing so, attention should be paid to content encryption to prevent the destroyer from identifying the data format.
       2. The entire SLE4428 chip card is not partitioned. Once the password is checked correctly, it can be written or modified to any  address. Therefore, attention should be paid to the proper solidification of data and encryption of data content in the design to prevent unintentional changes to the data.
       3. After the password is checked correctly, it can be read. Therefore, during the design process, it should be possible to prevent  the destroyer from using illegal interrupt programs to directly read the password and steal the password.

4.Q: how can we guarantee quality?
    A:Always a pre-production sample before mass production;
    All products before shipped out will do full inspection.

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