X9317ZS8IZ

Digital Potentiometers Overview

The X9317ZS8IZ is a digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation. It features a single potentiometer circuit with 100 tap points and a total end-to-end resistance of 1 kOhm. The device utilizes a nonvolatile memory architecture to store wiper positions, ensuring data retention for up to 100 years without power. It operates on a single supply voltage ranging from 2.7V to 5.5V and employs a 3-wire serial interface (Up/Down, Increment, Chip Select) for control. The component is housed in an 8-SOIC package and supports linear taper characteristics.

Digital Potentiometers Feature Summary

• Nonvolatile Memory: Wiper position is stored in EEPROM and recalled upon power-up.
• Interface: Controlled via a simple 3-wire serial interface (CS, U/D, INC).
• Resistance Options: Available in 1kΩ, 10kΩ, and 50kΩ values; this specific model is 1kΩ.
• Low Power: Standby current is less than 5µA.

Digital Potentiometers Applications

• Voltage control applications requiring digital adjustment.
• Current control using the device as a two-terminal variable resistor.
• System calibration where stable, nonvolatile resistance settings are required.

Digital Potentiometers Procurement Notes

Verify the suffix 'Z' indicates RoHS compliance and lead-free status. Confirm the 'S8' designation corresponds to the SOIC-8 package variant. Ensure the 'I' suffix matches the industrial temperature range specifications (-40°C to +85°C) required for the application environment.

Digital Potentiometers Selection Notes

Select this component when a 1kΩ resistance value is specifically required, as opposed to the 10kΩ or 50kΩ variants available in the X9317 family. The 8-SOIC package is suitable for surface-mount assembly. Verify that the 3-wire interface compatibility exists with the host microcontroller or control logic.

Digital Potentiometers Part Context

The X9317ZS8IZ belongs to the X9317 series of Digitally Controlled Potentiometers (XDCP). This series is characterized by solid-state operation replacing mechanical potentiometers, offering high reliability with 100,000 data changes per bit register endurance. The family includes various resistance values and package options such as MSOP and TSSOP.

Digital Potentiometers Replacement Considerations

Cross-reference with other X9317 series parts if different resistance values (e.g., X9317WM8IZ for 10kΩ) are acceptable. Verify pinout compatibility with alternative packages like TSSOP-8 if board space constraints change.