The X93254 is a digitally controlled potentiometer from Intersil, consisting of two resistor arrays, two wiper switches, a control section and a non-volatile memory. Two wiper switches individually control the positions of two potentiometers. A potentiometer is implemented by a resistor array composed of 31 resistive elements and a wiper switching network. The position of each wiper element is controlled by a set of independent CS, U/D and INC inputs. The position of the wiper can be stored in non-volatile memory and then be recalled upon during a subsequent power-up operation. Each potentiometer is connected as a two-terminal variable resistor and can be used in a wide variety of applications including: Bias and Gain control, LCD Contrast Adjustment.
The X93254 combines two solid‑state potentiometers, each with 31 resistive elements and 32 selectable tap points. Wiper positions are controlled via independent Up/Down, Increment (ING) and Chip Select inputs, and can be stored in non‑volatile memory for recall on power‑up.
The device is offered in a thin‑shrink small‑outline plastic (TSSOP) package, operates from a 3 V supply, and features low active (250 µA) and standby (1 µA) currents. It is rated for industrial temperature ranges and high endurance of 200 k data changes per bit with 100‑year data retention.
| Total resistance (RTOTAL) | 50 kΩ |
|---|---|
| Wiper tap points per potentiometer | 32 |
| Active current (typical) | 250 µA |
| Standby current (typical) | 1 µA |
| Supply voltage | 3 V (±10 %) |
| Endurance | 200 000 data changes per bit |
| Data retention | 100 years |
Each potentiometer has 32 wiper tap points.
Yes, the wiper position is stored in non‑volatile memory and recalled on power‑up.
The device is supplied in a Thin Shrink Small Outline Plastic (TSSOP) package.
It is rated for 200,000 data changes per bit.