How many times wiper position of AD5175 and AD5231 can be changed?
Does "50-times programmable (50-TP) wiper memory" of AD5175 means that if MCU changes 50 times resistance this IC breaks down?
50-TP is where you can write 50 times into EEPROM to change the wiper position on powerup. After that, the EEPROM will not accept any more writes. The device will not break down on writing more than 50 times into EEPROM.
However, you can write directly into RDAC register to change the wiper position with no upper limits.
For AD5231, write cycle is at least 100000.