SHC2242 (Compatible SLE5542)

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Overview

SHC2242 is compatible with SLE5542. The function is absolutely same! The great advantage is the rather competitive price! Moreover, we are the main distributor of Belling! So we nearly have ten million sale volume every year!

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General Description:

BL7442 is a IC Card chip (module) made by 1.2 mCMOS EERPOM process. It has 256 byte EEPROM with logical encryption and function. It can be operated at low voltage.

Technical Features:

256 x 8 bit EEPROM organization
Byte-wise addressing
Irreversible byte-wise write protection of lowest 32 addresses (Byte 0 ……31)
32 x1 bit organization of protection memory
Two-wire link protocol
End of processing indicated at data output
Answer-to-Reset according to ISO standard 7816-3(B type)
EEPROM programming time 2.5 ms per byte for both Erasing and writing
Minimum of 100,000 write/erase cycles
Data retention time :>10 years
Contacts configuration and serial interface according to ISO 7816 standard (synchronous transmission)