The DS1854E-050 from Analog Devices Inc./Maxim Integrated is a digital potentiometer with 50kΩ resistance, 2 circuits, 256 taps and an I2C interface in a 16-TSSOP package.
The DS1854B-050 from Analog Devices Inc./Maxim Integrated is a digital potentiometer Integrated Circuit rated 50 kΩ with 2 circuits, 256 taps and an I2C interface, in a 16-CSBGA (4x4) package.