Specification :

* SLE5528 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