Datasheet Summary
BL7448SM Intelligent 8K-bit EEPROM
Description
BL7448SM is an IC Card chip (module) made by 0.35um CMOS EERPOM process. It has 1024 byte EEPROM with logical encryption and function.
Figure 1
Features
- 1024 x 8 bit EEPROM organization
- Byte-wise addressing
Irreversible byte-wise write protection of every Byte
- 1024 x1 bit organization of protection memory
- Serial three-wire link
- End of processing indicated at data output
- Minimum of 100,000 write/erase cycles
- Data retention time :>10 years
- Contacts configuration and serial interface according to ISO 7816 standard
(synchronous transmission)
- Data can only be changed after entry of the correct 2-byte
Programmable security...