X9313UMI

Digital Potentiometers Overview

The X9313UMI is a single-channel digital potentiometer IC from the X9313 series, manufactured by Renesas Electronics. It features a total resistance of 50 kOhms with a linear taper and 32 tap points for precise resistance adjustment. The device utilizes a non-volatile memory architecture to retain wiper position data during power loss, ensuring immediate recall upon power-up. It operates on a serial 3-wire interface (CS, U/D, INC) for control. Electrical specifications include a supply voltage range of 4.5 V to 5.5 V, a maximum active current of 1 mA, and an operating temperature range of -40°C to +85°C. The component is housed in an 8-pin MSOP surface-mount package.

Digital Potentiometers Feature Summary

• Non-volatile EEPROM storage retains wiper position across power cycles
• 32-tap resolution with 50 kOhm total resistance and linear taper
• Serial 3-wire interface (CS, U/D, INC) for digital control
• Single channel configuration in compact 8-MSOP package

Digital Potentiometers Applications

• Digitally controlled resistance trimming in instrumentation
• Gain setting for operational amplifier circuits
• Voltage reference adjustment in sensor interfaces
• Calibration of analog signal paths requiring non-volatile settings

Digital Potentiometers Procurement Notes

Verify the specific suffix 'UMI' against official Renesas documentation to confirm pinout compatibility and electrical tolerances relative to other variants like USIZ or UMZ. Confirm RoHS compliance status and moisture sensitivity level (MSL) ratings prior to PCB assembly planning. Ensure the 4.5V minimum supply voltage aligns with the target system's power rails.

Digital Potentiometers Selection Notes

Select this component when a single-channel, high-resistance (50k) digital potentiometer with non-volatile memory is required. The 32-tap resolution may be insufficient for applications demanding finer granularity; consider higher-tap alternatives if necessary. Verify that the 3-wire serial interface matches the available microcontroller GPIO resources. The industrial temperature range (-40°C to +85°C) supports broad environmental deployment.

Digital Potentiometers Part Context

The X9313UMI belongs to the X9313 family of solid-state nonvolatile potentiometers. This series integrates CMOS technology with EEPROM memory to replace mechanical potentiometers in space-constrained designs. The 'U' typically denotes the MSOP package, while 'M' indicates the 50kOhm resistance value within the product line.

Digital Potentiometers Replacement Considerations

Direct substitutes within the same family include X9313USIZ (SOIC-8 package) and X9313UMIZ (MSOP-8 package). Cross-package replacements require verification of footprint compatibility and thermal characteristics. No alternative manufacturers are publicly confirmed as direct equivalents for this specific part number.