Data Sheet

Product Description
1.Features
1.1 Lock Function
Support for password protected locking and unlocking of SD devices. It uses the LOCK/UNLOCK
command(CMD42) which is available in SD command sets.
1.2 Built-in ECC Engine
In event of errors, the combined data allow the recovery of the original data. The number of errors that can be
recovered depends on the algorithm used.
1.3 Wear-leveling
This function means the data are no longer tied to a single physical area, which can extend Card’s life
expectancy.
1.4 Early move
The function provides a mechanism to avoid read disturbance. Built-in ECC is used to detect and correct data bit
error. If error bits reaches the default threshold, the data will be moved to another good block to avoid
un-correct error in advance.
1.5 Read Retry
The function allows the read voltage to be dynamically adjusted such that read errors are decreased or even
eliminated.