X9317WM8I-2.7

Digital Potentiometers Overview

The X9317WM8I-2.7 is a digitally controlled potentiometer (XDCP) from the X9317 series, manufactured by Renesas Electronics Corporation. It features a single-channel linear taper with a total end-to-end resistance of 10 kΩ and 100 wiper tap points. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V and utilizes a 3-wire serial interface (Up/Down, Increment, Chip Select) for control. Wiper position data is stored in nonvolatile memory, ensuring retention upon power-up. The component is housed in an 8-pin MSOP package and supports an operating temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Nonvolatile memory retains wiper position settings after power loss
• 100-tap resolution with linear resistance taper
• Low standby current consumption (<5 µA typical)
• Compatible with standard 3-wire serial control interfaces

Digital Potentiometers Applications

• Voltage reference adjustment in sensor circuits
• Gain control in audio signal processing chains
• Bias current setting for operational amplifiers
• System calibration and trimming during manufacturing

Digital Potentiometers Procurement Notes

Verify RoHS compliance status as the base model X9317WM8I is listed as obsolete and non-RoHS compliant in some distributor records. Confirm that the suffix '-2.7' denotes the valid operating voltage range (2.7V–5.5V) rather than a distinct functional variant. Check for direct replacements like the X9317WM8IZ if lead times or availability are critical constraints.

Digital Potentiometers Selection Notes

Select this component when a solid-state replacement for mechanical potentiometers is required in space-constrained designs using MSOP packages. Ensure the application voltage does not exceed 5.5 V. Verify that the 10 kΩ resistance value aligns with the target circuit's impedance requirements, noting the 200 Ω wiper resistance may impact high-precision low-current applications.

Digital Potentiometers Part Context

The X9317WM8I-2.7 belongs to the X9317 family of Digitally Controlled Potentiometers. This series integrates resistor arrays, wiper switches, and control logic into a CMOS process. The 'WM8' designation specifies the 10 kΩ resistance value and 8-lead MSOP packaging, while the '-2.7' indicates compatibility with the lower end of the 2.7 V to 5.5 V supply range.

Digital Potentiometers Replacement Considerations

Direct substitutes include the X9317WM8IZ, which offers RoHS compliance. Other compatible options within the same family include variants with different resistance values (e.g., 50 kΩ or 100 kΩ) if the electrical parameters allow.