BL7442LV Description
BL7442LV is a IC Card chip (module) made by 1.2um CMOS EERPOM process. It has 256 byte EEPROM with logical encryption and function. It can be operated at low voltage.BL7442LV has two types, type A and type.
BL7442LV Key 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