The X9241A is a chip that integrates four digitally controlled potentiometers, with features such as non-volatile, low power, 2-wire, and 64 taps. It can be used as a three-terminal potentiometer or a two-terminal variable resistor.
The X9241A is a highly integrated CMOS microcircuit that combines four digitally controlled potentiometers, each with 64 taps, into a single package. It offers a 2‑wire serial interface (SCL/SDA) for low‑power communication and includes volatile wiper counters and four non‑volatile data registers per pot.
Key features include 64‑tap resolution per potentiometer, 16 bytes of non‑volatile memory, 100‑year register data retention, and an endurance of 100 000 data changes per bit per register. The device is available in PDIP, SOIC, and TSSOP packages with temperature ranges from –40 °C to +85 °C.
| Resolution | 64 taps per potentiometer |
|---|---|
| Endurance | 100,000 data changes per bit per register |
| Register data retention | 100 years |
| Non‑volatile memory | 16 bytes |
| Supply voltage | +5 V, –3.0 V |
| Temperature range (SOIC/TSSOP) | –40 °C to +85 °C |
It uses a 2‑wire serial interface (SCL and SDA) with a bidirectional bus protocol.
Each potentiometer provides 64 taps.
The data registers can endure 100,000 data changes per bit per register.