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SLE4442 Card
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>> News :: SLE4442 Card

     SLE4442 Secure Memory Smart Cards
     SLE4442 is the most common chip that used in security area. SLE 4442 provides a security code logic which controls the write/erase access to the memory. For this purpose the SLE 4442 contains a 4-byte security memory with an Error Counter EC (bit 0 to bit 2) and 3 bytes reference data. These 3 bytes as a whole are called Programmable Security Code (PSC). After power on the whole memory, except for the reference data, can only be read. Only after a successful comparison of verification data with the internal reference data the memory has the identical access functionality of the SLE 4432 until the power is switched off. After three successive unsuccessful comparisons the Error Counter blocks any subsequent attempt and hence any possibility to write and erase.

> 256 * 8-bit EEPROM organization
> Byte-wise addressing
> Irreversible byte-wise write protection of lowest 32 addresses (Byte 0 ... 31)
> 32 * 1-bit organization of protection memory
> Two-wire link protocol
> End of processing indicated at data output
> Answer-to-Reset acc. to ISO standard 7816-3
> Programming time 2.5 ms per byte for both erasing and writing
> Contact configuration and serial interface in accordance with ISO standard 7816.

     SLE4442 chip upgrade product is SLE5542, the function and feature of both chip is exactly same.
     The chip completely compatible with SLE4442 is FM4442. The performance of FM4442 is the same as SLE4442 chip. As the price of SLE4442 is relatively higher, so the FM4442 is used in many projects instead of SLE4442 chip.
     Delivery Terms
     Samples: It’s free of charge and could be sent within 1-2 working days.
     <10K pcs: Within 3-4 working days
     <100K pcs: Within 6-7 working days
     <1KK pcs: Within 15 working days.
     >1KK pcs: On request

* Any question or inquiry about rfid card and rfid related products ,please send email to info@oprfid.com,we will reply you within 24 hours,Thanks

 
     
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        A smart card is a small plastic card containing a computer chip. People use smart cards along with personal identification numbers (PINs) to log on to a network, a computer, or a device. Using a smart card is more secure than using a password because it's more difficult for someone to steal a smart card and learn your PIN than to learn your password.Smart cards are generally issued by information technology (IT) departments in large organizations. To use a smart card, you also need a smart card reader—a device that’s installed in or connected to your computer and that can read the information stored on a smart card.