X9318WS8IZT1

Digital Potentiometers Overview

The X9318WS8IZT1 is a digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation. It features a single circuit with a total resistance of 10 kOhms and 100 taps, offering linear taper characteristics. The device utilizes non-volatile memory to retain the wiper position upon power loss. It operates on a single 5V supply and communicates via an Up/Down (U/D), Increment (INC), and Chip Select (CS) serial interface. The component is housed in an 8-SOIC surface-mount package and is rated for an industrial operating temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Non-volatile memory retains wiper settings without external power
• 100-tap resolution with 10 kOhm total resistance
• Simple 3-wire serial control interface (U/D, INC, CS)
• Industrial temperature range (-40°C to +85°C)

Digital Potentiometers Applications

• Audio volume and tone control circuits
• Programmable gain amplifier adjustments
• Voltage reference trimming
• Sensor calibration systems

Digital Potentiometers Procurement Notes

Verify the specific suffix 'T1' against official Renesas documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with standard SOIC-8 footprints during PCB layout. Confirm RoHS compliance status for the specific manufacturing lot if required by regulatory standards.

Digital Potentiometers Selection Notes

Select this component when non-volatile adjustment is required for a 10 kOhm resistive path. The U/D/INC interface simplifies microcontroller integration compared to I2C or SPI variants. Verify that the 100-tap resolution meets the precision requirements of the application, as coarser steps may be sufficient for less critical adjustments.

Digital Potentiometers Part Context

This part belongs to the X9318 series of Digitally Controlled Potentiometers. It shares architectural similarities with other X93xx devices but is distinguished by its specific resistance value, interface type, and non-volatile storage capability. The WS8Z designation indicates the SOIC-8 package variant.

Digital Potentiometers Replacement Considerations

Cross-reference with X9318WS8IZ for tube packaging equivalents. Check X9317 or X9319 series members for similar functionality with different resistance values or interfaces. Verify pinout compatibility before substituting with generic digital potentiometer ICs.