The SLE5542/SLE4442 is a standard, low-cost EEPROM memory smartcard with 256 bytes
of available storage, with an irreversible write protection feature and a 3-byte
programmable security code. BL7442&FM4442 is compatible. See more detail please
feel free to contact with me.

Detailed Description : Siemens SLE4442/SLE5542 Smartcard Features
ISO 7816 Compliant pad locations
256*8 bit EEPROM organization
byte-wise addressing
Irreversible byte-wise write protection of lowest 32addresses (byte 0-31)
32*1 bit organization of protection memory
2-wire link protocol
Answer to reset according to ISO standard 7816-3
Programming time 2.5mS per byte for both erasing and writing
Minimum of 10000 write/erase cycles
Data retention > 10 years
Programmable Security Code (PSC)
Data write only after correct 3-byte PSC

Phisical feature:
1) Card material: PVC, polyester
2) Card size: CR80 (54 x 85. 6mm), custom size
3) Color: white glossy, white matte, full color
4) Shipping weight: 0.005kg/pcs for reference

Other contact smart card Chip available: Siemens series,

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