X9315USZ Digital Potentiometer Equivalent & Substitute Parts

Part Overview

The X9315USZ is a digital potentiometer manufactured by Renesas Electronics Corporation, designed for data acquisition applications requiring programmable resistance adjustment. This 50kΩ, 32-tap device uses an Up/Down (U/D, INC, CS) interface with non-volatile memory for persistent settings. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations. The X9315USZ operates at 5V supply voltage with linear taper characteristics suitable for precision analog signal conditioning and calibration applications.

Substiute Parts

X9315USZ

Renesas Electronics CorporationIn Stock: 762X9315USZ Datasheet

Current PartRFQ

X9313USZ

Xicor-Division of IntersilIn Stock: 1281X9313USZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the X9315USZ is determined by strict equivalence across the following critical parameters:

• Resistance Value: 50kΩ (exact match required)
• Number of Taps: 32 (exact match required)
• Interface Protocol: Up/Down (U/D, INC, CS) (exact match required)
• Memory Type: Non-Volatile (exact match required)
• Supply Voltage: 5V (exact match required)
• Taper Type: Linear (exact match required)
• Package: 8-SOIC form factor (exact match required)
• Number of Circuits: 1 (exact match required)

The X9313USZ meets all substitution criteria as a parametric equivalent. Both devices share identical functional specifications, electrical characteristics, and physical packaging, enabling direct replacement in existing designs and PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

The X9313USZ is the qualified substitute for the obsolete X9315USZ. Both devices are ROHS3 compliant and share identical electrical and mechanical specifications across all critical parameters. The X9313USZ maintains active product status with Xicor-Division of Intersil, ensuring continued availability and supply chain reliability. Selection of the X9313USZ eliminates obsolescence risk while preserving full functional compatibility with existing circuit designs and PCB layouts. No design modifications are required for substitution.

Frequently Asked Questions (FAQ)

Q: Can the X9313USZ be used as a direct replacement for the X9315USZ?

A: Yes. The X9313USZ is a parametric equivalent with identical resistance value (50kΩ), tap count (32), interface protocol (U/D, INC, CS), memory type (non-volatile), supply voltage (5V), taper (linear), and 8-SOIC package. No circuit modifications or firmware changes are necessary.

Q: What is the primary difference between these two parts?

A: The X9315USZ is manufactured by Renesas Electronics Corporation and is classified as obsolete. The X9313USZ is manufactured by Xicor-Division of Intersil and maintains active product status. All functional and electrical characteristics are identical.

Q: Are there any package or pinout differences?

A: No. Both devices use the 8-SOIC (0.154", 3.90mm Width) package with identical pinout and physical dimensions, enabling direct PCB substitution without layout modifications.

Q: What compliance certifications apply to both parts?

A: Both the X9315USZ and X9313USZ are ROHS3 compliant. The X9315USZ carries REACH Unaffected status. Both devices are classified under ECCN EAR99 for export control purposes.

Q: Is there any difference in wiper resistance?

A: The X9315USZ specifies typical wiper resistance of 200Ω, while the X9313USZ specifies 40Ω. This parameter difference does not affect substitution eligibility for standard potentiometer applications but should be evaluated in precision analog circuits where wiper resistance contributes to overall circuit impedance.