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Renesas X9314WSZ-3
- Part No.:
- X9314WSZ-3
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9314WSZ-3.pdf
- Description:
- IC DGTL POT 10KOHM 32TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,199
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Product details
Overview
X9314WSZ-3 from Intersil is a nonvolatile digitally controlled potentiometer (XDCP™) with 32 log-taper taps, 10kΩ end-to-end resistance, ±5V terminal voltage rating, and three-wire up/down serial interface-used for precision resistance trimming in analog signal conditioning circuits.
For engineers reviewing the X9314WSZ-3 datasheet, X9314WSZ-3 pinout, X9314WSZ-3 application, or X9314WSZ-3 equivalent, this page delivers verified specifications, wiper position storage behavior, SOIC-8 package details, real-world use cases in audio gain control and sensor offset calibration, and confirmed alternative parts with functional distinctions.
Technical Context
The X9314WSZ-3 implements a 5-bit up/down counter driving a 31-element resistor array with make-before-break electronic switches; wiper position is stored to nonvolatile memory on CS↑ with INC HIGH and recalled automatically at power-up. Its log taper provides 0.07±0.003 step-size linearity in log(R) space.
It operates from 0°C to +70°C with VCC = 5V ±10%, supports ±1mA wiper current, exhibits 40Ω typical wiper resistance, and maintains 100-year data retention. Terminal voltages are rated from –5V to +5V relative to VSS, with no power sequencing restrictions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 10kΩ ±20% - defines full-scale analog attenuation range and sets minimum load impedance compatibility. |
| Taper Type | Logarithmic - enables perceptually linear volume/gain control in audio applications and matches human sensory response curves. |
| Wiper Resistance | 40Ω typical - contributes directly to insertion loss and output impedance in variable-resistor configurations. |
| Nonvolatile Storage | 100-year retention - eliminates need for external EEPROM or MCU-based state backup during power cycles. |
| Interface Protocol | Three-wire up/down serial - requires only CS, U/D, and edge-triggered INC signals; no clock or data lines needed. |
| Supply Voltage Range | 5V ±10% - compatible with standard TTL/CMOS logic rails and simplifies power domain integration. |
| Terminal Voltage Range | –5V to +5V - supports bipolar analog signal routing without level-shifting circuitry. |
Pinout & Package
Package: 8-lead narrow-body SOIC (JEDEC MS-012-AA, pkg drawing M8.15), RoHS-compliant, Pb-free plus anneal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VH/RH | High terminal of resistor array | Fixed end of potentiometer; voltage reference point for log-taper division; rated ±5V relative to VSS. |
| VL/RL | Low terminal of resistor array | Fixed opposite end; forms full RTOTAL path with VH/RH; polarity depends on U/D direction, not absolute voltage. |
| VW/RW | Wiper output terminal | Variable tap point; connects to one of 32 positions via decoded counter; 40Ω series resistance affects signal fidelity. |
| VCC | Positive supply input | 5V ±10% digital core and analog array supply; powers internal logic, memory, and transfer gates. |
| VSS | Ground reference | Common return for all digital inputs and analog terminals; must be low-impedance for stable wiper positioning. |
| CS | Chip select input | Active-low enable; initiates wiper movement when LOW; triggers nonvolatile store on rising edge with INC HIGH. |
| U/D | Direction control input | Logic level selects increment (HIGH) or decrement (LOW) mode for wiper movement on each INC edge. |
| INC | Increment clock input | Negative-edge triggered; advances wiper one tap per valid edge; timing tCYC ≥ 4µs required for reliable operation. |
Key Features
| Feature | Design Value |
|---|---|
| Logarithmic taper accuracy | 0.07±0.003 step-size deviation in log(R) - ensures smooth, perceptually uniform gain adjustment across 32 positions. |
| Nonvolatile wiper recall | Automatic restoration at power-up - guarantees repeatable startup state without host MCU initialization overhead. |
| Make-before-break switching | Eliminates open-circuit transients during tap changes - prevents audible pops in audio paths and signal dropouts in sensor interfaces. |
| Low standby current | <500µA total package - enables battery-powered trim applications with minimal quiescent drain. |
| Bipolar terminal rating | –5V to +5V on VH/RH and VL/RL - allows direct interfacing with AC-coupled or dual-supply analog stages without clamping diodes. |
Applications
| Audio Volume Control | Sensor Offset Calibration |
|---|---|
|
Use Scenario: Adjustable gain stage in headphone amplifier or line-out circuit requiring smooth, user-perceived linear volume change. IC Role / Device Role / Timing Role: Two-terminal variable resistor configured between op-amp feedback path and ground, with log taper matching human loudness perception. Use Value: Eliminates mechanical pot wear and drift while delivering 32-step resolution and factory-set default volume on power-up. |
Use Scenario: Fine-tuning DC bias voltage applied to bridge sensor outputs (e.g., load cell, thermopile) to null initial offset error. IC Role / Device Role / Timing Role: Three-terminal potentiometer with VH/RH tied to reference voltage and VL/RL grounded; VW adjusts common-mode level into instrumentation amplifier. Use Value: Enables one-time calibration during production and retains trim value across field deployments and power interruptions. |
| Power Supply Feedback Trim | Industrial DAC Output Scaling |
|
Use Scenario: Adjusting output voltage of isolated DC-DC converter by modifying feedback divider ratio in compliance with safety isolation barriers. IC Role / Device Role / Timing Role: Digitally reconfigurable top resistor in resistive divider network; VH/RH connected to VOUT, VL/RL to FB node, VW to controller FB pin. Use Value: Supports remote firmware-based output voltage reprogramming without hardware modification or soldering. |
Use Scenario: Scaling full-scale output of 12-bit DAC (e.g., 0–2.5V) to match input range of downstream ADC or actuator driver (e.g., 0–10V). IC Role / Device Role / Timing Role: Precision programmable gain element placed between DAC output and op-amp non-inverting input; log taper irrelevant, linear use assumed. Use Value: Achieves 10kΩ scaling ratio with <40Ω wiper resistance impact, enabling accurate 0.1% gain setting repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5243BRMZ10 | 2-channel I²C interface, 10kΩ, 256 taps, 0.1% RAB tolerance, but volatile-only memory (no auto-recall) | Requires external MCU to reload wiper position at startup; better for dynamic real-time adjustment, worse for set-and-forget trim | Select when multi-channel coordination or finer resolution is needed, and system can manage state persistence. |
| MCP41010-I/P | Single-channel SPI interface, 10kΩ, 256 taps, volatile memory, 20µA max standby current, but no nonvolatile storage | No power-up recall; needs continuous MCU supervision; lower standby draw but higher software overhead | Choose for cost-sensitive designs where firmware handles calibration persistence and SPI bus is already present. |
Compared with X9314WSZ-3, AD5243BRMZ10 offers higher resolution and dual channels but lacks autonomous power-up recall, while MCP41010-I/P reduces standby current significantly yet requires full firmware state management-making X9314WSZ-3 optimal for maintenance-free analog trim in unattended systems.
Availability
X9314WSZ-3 is available at Aetrix Electronics and suitable for audio equipment manufacturing, industrial sensor calibration, and isolated power supply design requiring stable component supply, long-term obsolescence resilience, and guaranteed RoHS-compliant sourcing.
Supply support for X9314WSZ-3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Intersil Corporation (now part of Renesas Electronics) is a U.S.-based analog and mixed-signal semiconductor company founded in 1967, specializing in power management, precision analog, and interface ICs.
The X9314WSZ-3 belongs to Intersil's XDCP™ (eXternally Controlled Digital Potentiometer) family, designed specifically for replacing mechanical pots in high-reliability analog trimming applications where nonvolatile state retention and log taper are critical.
FAQ
What is the operating temperature range for the X9314WSZ-3?
The X9314WSZ-3 is specified for commercial temperature operation from 0°C to +70°C. This range is defined in the Ordering Information table of the FN8178 datasheet and applies specifically to the "WSZ" suffix variant. It does not support industrial-grade –40°C to +85°C operation, which is reserved for variants like X9314WMIZ-3.
Does the X9314WSZ-3 require a specific power-up sequence for reliable wiper recall?
No, the X9314WSZ-3 imposes no sequencing requirements between VCC and analog terminal voltages. Per the datasheet Absolute Maximum Ratings and Operation Notes, wiper position recall occurs automatically within 500µs after VCC reaches its final value, regardless of whether VH/RH or VL/RL are biased before or after VCC ramp-up.
Can the X9314WSZ-3 be used as a two-terminal variable resistor?
Yes, the X9314WSZ-3 can be configured as a two-terminal device by connecting either VH/RH or VL/RL to VW/RW, leaving the unused terminal open or grounded depending on topology. The datasheet explicitly states it functions "as a two-terminal variable resistor in a wide variety of applications," with wiper resistance (40Ω typ.) directly affecting minimum achievable resistance.
What is the maximum allowable voltage difference between VH/RH and VL/RL on the X9314WSZ-3?
The absolute maximum voltage difference ΔV = |VH/RH − VL/RL| is limited to 10V, as stated in the Absolute Maximum Ratings table. While each terminal is individually rated for –5V to +5V relative to VSS, the total potential across the resistor array must not exceed 10V to prevent overstress of internal elements and transfer gates.
How is nonvolatile storage triggered on the X9314WSZ-3?
Nonvolatile storage is triggered by a rising edge on the CS pin while the INC input is held HIGH. This action writes the current 5-bit counter value (wiper position) into nonvolatile memory. The datasheet confirms this behavior in the Pin Descriptions and Mode Selection table, and notes that the device enters low-power standby immediately after the store completes.
X9314WSZ-3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Logarithmic
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 32
- Resistance (Ohms):
- 10k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 3V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±600ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9314WSZ-3 FAQ
1.How can I place an order for X9314WSZ-3 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9314WSZ-3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for X9314WSZ-3 reliable?
The price and inventory of X9314WSZ-3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9314WSZ-3 is usually 5 days.
3.What payment methods are accepted for X9314WSZ-3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9314WSZ-3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9314WSZ-3?
X9314WSZ-3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9314WSZ-3 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for X9314WSZ-3?
For technical support, including X9314WSZ-3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9314WSZ-3 requirements.
6.How does Aetrix verify that X9314WSZ-3 is sourced from the original manufacturer or authorized distributors?
All X9314WSZ-3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that X9314WSZ-3 meets industry standards.
7.What is the process for return or replacement of X9314WSZ-3?
All X9314WSZ-3 units undergo pre-shipment inspection (PSI). If there is an issue with X9314WSZ-3, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The X9314WSZ-3 part is unused and in its original packaging.
Return procedure for X9314WSZ-3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9314WSZ-3 Tags
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