X93154UM8I-3

Digital Potentiometers Overview

The X93154UM8I-3 is a digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation. It features a solid-state resistor array with 32 wiper tap points and a total resistance of 50kΩ. The device operates on a 3V supply voltage and utilizes a 3-wire serial interface for control. Key specifications include an active current of 250µA maximum, standby current of 1µA maximum, and nonvolatile memory for retaining the wiper position across power cycles.

Digital Potentiometers Feature Summary

• 32 Wiper Tap Points: Provides precise digital adjustment via a 3-wire serial interface (CS, U/D, INC).
• Nonvolatile Memory: Stores the last wiper position in EEPROM, recalling it automatically upon power-up.
• Low Power Operation: Designed for 3V ±10% supply with 250µA max active current and 1µA max standby current.
• High Reliability: Rated for 200,000 data changes per bit and 100 years of register data retention.

Digital Potentiometers Applications

• Bias and Gain Control in electronic circuits
• LCD Contrast Adjustment
• Micro-Power LCD Contrast Control
• Single Supply Variable Gain Amplifier

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized channels as this part is marked 'Not Recommended for New Designs'. Confirm package integrity and moisture sensitivity level (MSL) handling requirements prior to assembly. Check for RoHS compliance status and ensure compatibility with Pb-free soldering profiles.

Digital Potentiometers Selection Notes

Select this component when a low-power, 3V-operated digital potentiometer with nonvolatile memory is required. Ensure the system supports the 3-wire serial interface timing constraints. Verify that the 50kΩ resistance value fits the application's impedance requirements and that the MSOP-8 package dimensions are suitable for the PCB layout.

Digital Potentiometers Part Context

The X93154 is part of the Intersil/Renesas X9315 series of low noise, low power digitally controlled potentiometers. This specific model is packaged in an 8-lead MSOP format. The datasheet explicitly states that the product is not recommended for new designs and lists no recommended replacement.

Digital Potentiometers Replacement Considerations

The datasheet specifies 'NO RECOMMENDED REPLACEMENT' for the X93154. Engineers must evaluate alternative components independently based on pinout compatibility, electrical specifications, and interface requirements.