Smart Cards

January 11, 2013
 

Memory Smart Cards

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Written by: chipsilicon_wp

 

 

 

 

 

 

Introduction

ACS offers a variety of memory cards that may be used with their various smart card readers/writers. These are the SLE5542 and SLE5528 memory cards.

MEMORY CARD Standard Features

SLE5542 Memory Card Features

    • SLE 5542 is 100% functional compatible to SLE 4442
    • Intelligent 256-Bytes EEPROM
    • Write-protect function
    • Programmable Security Code (PSC)
    • EEPROM is organized 256 x 8 bit offering the possibility of programmable write protection for each byte
    • Data Memory alterable only after verification of 3-Byte Programmable Security Code (PSC)

SLE5528 Memory Card Features

    • SLE 5528 is 100% functional compatible to SLE 4428
    • 1K byte EEPROM
    • Write-protect function
    • Programmable Security Code verification logic
    • All the memory, except for the PSC, can always be read
    • The memory can be written or erased only after PSC verification
    • After eight successive incorrect entries the error counter will block any subsequent attempt at PSC verification and hence any possibility to write and erase