SC23M42
DESCRIPTION
SC23M42 is a smart card module utilizing CMOS EEPROM technology. 256 bytes main memory, 32-bit protection memory, 3 bytes user password, and 3-bit password wrong counter (Value: 00000D2D1D0). And the periphery interface is patible with ISO7816 agreement (synchronous propagation).
FEATURES
- 256 X 8 bit EEPROM
- Byte addressing
- Write-protect area (former 32 bytes) can execute the write-protect separately, and after the write-protect, the content cannot be changed.
- 32 X 1bit protect memory
- Serial two buses interface
- More than 100,000 times write endurance cycles
- Data retention of more than 10 years
- Contact definition and serial interface ply to ISO7816 specification (synchronous propagation)
- 3 Bytes user password, 3 bits(bit0-bit2) error counter
- Before the password is checked, all the data can be read; if the password is correct, you can write or amend the data and the password.
- Password error counter, and the initial value is 3. Checking the
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