X9319 is a digitally controlled potentiometer produced by Intersil. The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by a 3-wire interface.
The X9319 is a digitally controlled potentiometer (XDCP) that integrates a resistor array, wiper switch network, control logic, and non‑volatile memory. It is accessed via a 3‑wire serial interface and can operate as a three‑terminal potentiometer or a two‑terminal variable resistor.
Key features include 99 resistive elements, 100 wiper tap points, a total resistance of 10 kΩ or 50 kΩ, 5 V supply voltage, 3 mA active current, and 1 mA standby current. The device offers 100 k data‑change endurance per bit and 100‑year data retention, with temperature ranges from –40 °C to +85 °C in various PDIP and SOIC packages.
| Total resistance | 10 kΩ (or 50 kΩ) |
|---|---|
| Number of wiper tap points | 100 |
| Resistive elements in array | 99 |
| Active current (max) | 3 mA |
| Standby current (max) | 1 mA |
| Endurance (data changes per bit) | 100,000 |
| Data retention | 100 years |
The X9319 provides 100 wiper tap points.
The wiper position is stored in non‑volatile memory and recalled on power‑up.
The maximum active current is 3 mA.