This document is a feature description file of X9279 single supply/low power/256-tap/2-wire bus single digitally-controlled (XDCP™) potentiometer.
The X9279 is a single‑digitally‑controlled potentiometer (XDCP) integrating a 256‑tap resistor array with a 2‑wire serial interface. It offers non‑volatile storage of wiper positions, low standby current, and a wide operating voltage range.
The datasheet provides ordering information, pin configurations, functional block diagrams, serial interface details, application circuit examples, and packaging specifications for designers and engineers.
| Supply Voltage (Vcc) | 2.7 V to 5.5 V |
|---|---|
| Standby Current | < 5 µA |
| Resistor Taps | 256 |
| Endurance | 100,000 data changes per bit |
| Data Retention | 100 years |
| Operating Temperature | -40 °C to 85 °C |
The device operates from 2.7 V to 5.5 V.
It provides 256 resistor taps.
The standby current is less than 5 µA.
Data is retained for up to 100 years.