The AD5174BRMZ-10 is a single-channel Digital Rheostat with SPI interface and 50-TP memory that combines industry leading variable resistor performance with non-volatile memory (NVM). This device supports single-supply operation at 2.7 to 5.5V and offers 50-times programmable (50-TP) memory. The AD5174 device wiper settings are controllable through the SPI digital interface. Unlimited adjustments are allowed before programming the resistance value into the 50-TP memory. The AD5174 does not require any external voltage supply to facilitate fuse blow and there are 50 opportunities for permanent programming. During 50-TP activation, a permanent blow fuse command freezes the resistance position.