A data storage device includes a memory and a controller. The controller is configured to identify groups of bits that match any bit pattern in a first set of bit patterns. Each of the groups of bits includes a first bit of first data, a second bit of second data, and a third bit of third data to be stored at the memory. The controller is configured, based on determining that a count of the identified groups exceeds a threshold, to change multiple bits of the first data. Changing the multiple bits of the first data reduces a number of the groups of bits that match any bit pattern in the first set of bit patterns.