X9C503SIZ

Overview

The X9C503SIZ is a non-volatile digital potentiometer manufactured by Renesas Electronics. It features a single circuit with a total resistance of 50 kOhms and a linear taper. The device provides 100 tap positions for precise resistance adjustment. It operates on a 5V supply voltage and utilizes a serial 3-wire interface for control. The component is housed in an 8-SOIC surface-mount package and supports an industrial operating temperature range from -40°C to +85°C.

Feature Summary

• Non-volatile EEPROM memory retains wiper position upon power loss
• Serial 3-wire interface (U/D, INC, CS) for simple microcontroller connection
• Linear resistance taper with 100 discrete tap positions
• Industrial temperature range operation (-40°C to +85°C)

Applications

• Volume control in audio equipment
• Gain adjustment in instrumentation amplifiers
• Voltage reference trimming
• LED brightness control

Procurement Notes

Verify the specific suffix 'I' indicates the extended industrial temperature range compared to standard commercial variants. Confirm the package type is 8-SOIC with a width of 3.90mm. Check RoHS compliance status as per current manufacturer documentation. Ensure the source document explicitly lists the 50k resistance value and 100-tap configuration for this exact part number.

Selection Notes

Select this component when a non-volatile digital potentiometer with 50k total resistance is required. The 100-tap resolution offers finer adjustment than 32-tap alternatives. The serial interface reduces pin count compared to parallel interfaces. Verify that the 5V logic levels are compatible with the controlling system. The industrial temperature rating suits environments exceeding commercial limits.

Part Context

This part belongs to the XDCP series of non-volatile digital potentiometers. It shares architectural similarities with the X9C103 but differs in total resistance value. The 'I' suffix typically denotes the industrial temperature grade within the X9C503 family. It serves as a solid-state replacement for mechanical potentiometers in applications requiring programmable resistance.

Replacement Considerations

Direct substitutes include other 50k non-volatile digital potentiometers with 100 taps and SOIC-8 packages. Verify interface compatibility if replacing with devices using different control protocols. Check if alternative parts offer the same non-volatile storage capability to maintain settings after power cycles.