Each of the two independent pots is 10k end-to-end, controlled via a three-wire Up/Down interface (U/D, INC, CS). The wiper position is volatile — it defaults to midscale on power-up — so this part is suited for adjustable gain, offset trim, or volume control where the setting is re-established each power cycle, not for storing calibration constants across power loss.
Wiper resistance is 225 ohms typical. Temperature coefficient is 35ppm/°C. The Up/Down interface uses three GPIOs (U/D, INC, CS) — not I2C or SPI. That means any microcontroller with free digital pins can drive it, but verify your MCU has the headroom; no dedicated serial peripheral is needed.
The MAX5451EUD+ is listed as Active (current production) and ROHS3 compliant. No end-of-life notice or last-time-buy risk for new designs.