X93155UM8I

Digital Potentiometers Overview

The X93155UM8I is a digitally controlled potentiometer (XDCP) featuring a single potentiometer with 32 wiper tap points and 31 resistive elements. It utilizes an up/down interface controlled by CS, U/D, and INC inputs to adjust the wiper position along the resistor array. The device incorporates nonvolatile memory to store the wiper position, which is automatically recalled upon power-up. Key electrical parameters include a total resistance (R_TOTAL) of 50 kΩ with a maximum tolerance of ±25%, a supply voltage (V_CC) of 5V ±10%, and an active current of 200 µA typical. It operates within an industrial temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Solid-state potentiometer with 32 wiper tap points and nonvolatile memory for data retention.
• Up/Down control interface using CS, U/D, and INC pins for wiper positioning.
• Low power CMOS technology with 200 µA typical active current and 2.0 µA max standby current.
• Temperature compensated resistor array with ±35 ppm/°C temperature coefficient.

Digital Potentiometers Applications

• Bias and Gain Control
• LCD Contrast Adjustment

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized Renesas or Intersil distributors. Confirm RoHS compliance status as the standard UM8I package may differ from the Z suffix Pb-free variant. Check datasheet revisions for any updates to absolute maximum ratings or operating conditions before finalizing procurement specifications.

Digital Potentiometers Selection Notes

Select this component when a 50 kΩ digital potentiometer with nonvolatile storage is required. Ensure the system supports the 3-wire up/down interface logic levels. Verify that the 8-lead MSOP package dimensions fit the PCB layout constraints. Consider the ±25% resistance tolerance and ±35 ppm/°C temperature coefficient for precision applications.

Digital Potentiometers Part Context

The X93155UM8I belongs to the X93155 series of Digitally Controlled Potentiometers manufactured by Intersil, now part of Renesas Electronics. This specific part number denotes the 50 kΩ version in an 8-lead Mini Small Outline Plastic Package (MSOP). It is designed as a solid-state replacement for mechanical potentiometers in embedded systems requiring programmable resistance values.

Digital Potentiometers Replacement Considerations

The datasheet explicitly states "NO RECOMMENDED REPLACEMENT" for this component. Engineers should consult Technical Support for potential alternatives if sourcing becomes unavailable. Direct pin-to-pin replacements are not officially endorsed by the manufacturer.