AU6438_USB2.0 write-protected EMMCU disk/card reader

AU6438 is the main chip and supports 1.8v chip (theoretically).
It should not support write protection. I think there is
a two-color indicator light, a green light for open and a red light for write protection.
The current one is the bga153 version. I have never seen other packages of small-capacity emmc, so there is no We have made other package versions, and we have also made a ns1081s version including bga221 and bga254. We are still verifying it,
mainly soldering 4-16g small capacity emmc chips. The maximum speed is 25m. This speed is too slow for large capacity chips.
The board type is It’s a universal one. I don’t know what
the card reader is called, so there is no verification. There are too many card readers, but in theory there is no problem. The circuits are the same
 
and pay attention to them! ! ! It cannot be used for commercial purposes. If you really want to use it for commercial purposes, please contact (student party, give money).
 
 
Write protection is the same as other USB flash drives. When powering on, switching modes requires powering on again for it to take effect.