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MSP430G2553: Flash data loss problem.

Part Number: MSP430G2553

Part Number: MSP430G2553IPW28R  TSSOP-28

1. 3500 sets were produced for the first time, 100 sets were sampled and 4 pieces were found to have data loss problems. In the second production, 100 sets were sampled and 5 pieces were found to have data loss problems.  

2. During the operation of the product, the operation data of the product will be saved to the Flash (address from 0x1000-0x10B0) of the MSP430G2553 chip, such as the matching code information with the remote control, the operation setting state of the motor, etc. When the product is powered on, the data will be saved, but after the product is powered off, the data saved before will be lost.  Memory read out is 0xFF, and the bad phenomenon is fixed, data will be lost after power failure.  

3. Swap tested. The problem follows the chip.  

4. Schematics:

5. Here is the data read before and after the blackout.  

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