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Renesas X9314WM-3T1
- Part No.:
- X9314WM-3T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9314WM-3T1.pdf
- Description:
- IC DGTL POT 10KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,735
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Product details
Overview
X9314WM-3T1 from Intersil is a nonvolatile digitally controlled potentiometer (XDCP™) with 32 log-taper taps, 10kΩ end-to-end resistance, and three-wire up/down serial interface; it functions as a solid-state trimmer in analog signal conditioning circuits requiring power-up wiper recall and ±5V terminal voltage capability.
For engineers reviewing the X9314WM-3T1 datasheet, X9314WM-3T1 pinout, X9314WM-3T1 application, or X9314WM-3T1 equivalent, this device supports precision resistance trimming in industrial sensor interfaces, audio gain control, and DC bias adjustment where nonvolatile storage of wiper position and low standby current (<500µA) are critical design requirements.
Technical Context
The X9314WM-3T1 implements a 5-bit up/down counter driving a 32-position decoder to select one of 31 resistive elements in series; wiper movement is edge-triggered on INC with direction controlled by U/D, and nonvolatile storage occurs on CS↑ while INC = HIGH.
It operates across VCC = 3V to 5.5V, supports ±5V analog terminal voltages (VH/RH, VL/RL), and maintains ratiometric temperature coefficient of ±20 ppm/°C - enabling stable attenuation in voltage-divider configurations over -40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 10kΩ ±20% - defines full-scale analog range for voltage divider or gain-setting applications. |
| Taper Profile | Logarithmic - provides perceptually linear volume/gain control in audio and sensor signal chains. |
| Wiper Resistance | 40Ω typical - minimizes insertion error when used as variable resistor in feedback paths. |
| Nonvolatile Retention | 100 years - ensures factory-set or user-trimmed values persist across power cycles without backup power. |
| Standby Current | <500µA max - enables battery-powered systems to retain trim state during extended sleep modes. |
| VCC Range | 3V to 5.5V - compatible with both 3.3V and 5V logic and analog supply domains. |
| Terminal Voltage Range | ±5V referenced to VSS - supports bipolar signal routing without external level-shifting. |
Pinout & Package
Package: 8-lead MSOP (M8.118), RoHS-compliant, Pb-free plus anneal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VH/RH | High terminal of resistor array | Fixed end of potentiometer; accepts up to +5V relative to VSS; polarity depends on U/D direction setting. |
| VL/RL | Low terminal of resistor array | Fixed end opposite VH/RH; accepts down to -5V relative to VSS; not ground-referenced by default. |
| VW/RW | Wiper output terminal | Variable tap point; connects to one of 32 positions; series resistance ~40Ω affects loading in high-impedance nodes. |
| VCC | Digital supply input | 3V–5.5V power for logic and memory; powers internal counter, decoder, and NV memory circuitry. |
| VSS | Ground reference | Common return for digital logic and analog terminals; must be low-impedance to minimize noise coupling. |
| U/D | Direction control input | Active-HIGH selects increment; LOW selects decrement; may be changed dynamically while CS = LOW. |
| INC | Edge-triggered wiper step input | Negative-edge triggered; each pulse moves wiper one tap; timing tCYC ≥ 4µs required for reliable operation. |
| CS | Chip select and store enable | LOW enables device; HIGH while INC = HIGH initiates nonvolatile store; transitions to standby after store completes. |
Key Features
| Feature | Design Value |
|---|---|
| Log-taper 32-tap resistor array | Enables smooth, perceptually uniform gain/volume control in audio and human-interface circuits. |
| Three-wire serial interface (U/D, INC, CS) | Requires no clock or data lines beyond basic GPIO; simplifies integration into microcontroller-based trimming systems. |
| Nonvolatile wiper position storage | Eliminates need for external EEPROM or MCU firmware to restore trim settings after power loss. |
| Make-before-break wiper switching | Prevents open-circuit transients during tap changes - critical for stability in closed-loop analog circuits. |
| ±5V analog terminal rating | Supports direct connection to bipolar op-amp stages or sensor outputs without level-shifting components. |
Applications
| Audio Volume Control | Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Adjustable gain stage in line-level audio amplifier with user-controlled volume knob replacement. IC Role / Device Role / Timing Role: Digitally programmable log-taper attenuator replacing mechanical potentiometer in analog signal path. Use Value: Eliminates mechanical wear and contact noise while preserving logarithmic response essential for human hearing perception. |
Use Scenario: Offset and gain calibration of industrial temperature sensor output before ADC sampling. IC Role / Device Role / Timing Role: Nonvolatile trim element in precision instrumentation amplifier feedback network. Use Value: Maintains calibrated zero and span across power cycles and temperature drift without recalibration routines. |
| DC Bias Adjustment | Power Supply Feedback Trimming |
|
Use Scenario: Fine-tuning of reference voltage in analog front-end of medical ECG amplifier. IC Role / Device Role / Timing Role: Two-terminal variable resistor setting bias point in high-input-impedance op-amp configuration. Use Value: 40Ω wiper resistance and ±5V terminal rating ensure minimal loading error and compatibility with rail-to-rail input stages. |
Use Scenario: Programmable voltage setpoint in isolated DC-DC converter feedback loop. IC Role / Device Role / Timing Role: Digitally adjustable resistor in optocoupler-based feedback divider network. Use Value: 100-year data retention guarantees consistent output voltage regulation across product lifetime without field reprogramming. |
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; no log taper; requires external VDD/VSS decoupling. | Designed for dual-channel simultaneous adjustment; lacks native log taper and ±5V analog terminal support. | Select when multi-channel coordination or tighter resistance matching is required, and I²C infrastructure is available. |
| MCP41010-I/P | Single-channel SPI interface, 10kΩ, 256 linear taps, 20% RAB tolerance; VDD = 2.7–5.5V; wiper resistance 120Ω typical. | Linear taper only; higher wiper resistance increases insertion error in precision gain-setting networks. | Choose for SPI-based systems needing higher resolution (256 steps), accepting linear response and reduced analog voltage margin. |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9314WM-3T1 uniquely delivers log taper, ±5V analog terminal operation, and make-before-break switching in an 8-pin MSOP - making it optimal for audio and bipolar sensor trimming where waveform integrity and power-up repeatability are mandatory.
Availability
X9314WM-3T1 is available at Aetrix Electronics and suitable for industrial sensor calibration, audio equipment manufacturing, and medical analog front-end design requiring stable component supply and guaranteed long-term availability.
Supply support for X9314WM-3T1 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, designs high-performance analog and mixed-signal ICs with emphasis on power management, precision analog, and interface solutions.
The X9314WM-3T1 belongs to Intersil's XDCP™ family of nonvolatile digital potentiometers engineered for robust resistance trimming in harsh environments and mission-critical analog systems.
FAQ
What is the operating voltage range for the X9314WM-3T1?
The X9314WM-3T1 operates from VCC = 3V to 5.5V, supporting both 3.3V and 5V system rails. Its analog terminals (VH/RH, VL/RL) tolerate ±5V relative to VSS, enabling use in bipolar signal paths without level-shifting circuitry. This dual-voltage capability makes the X9314WM-3T1 suitable for mixed-signal applications where digital logic and analog signal conditioning share a common board.
Does the X9314WM-3T1 retain its wiper position after power cycling?
Yes, the X9314WM-3T1 stores wiper position in nonvolatile memory with 100-year data retention. Upon power-up, it automatically recalls the last stored value and configures the wiper accordingly. This behavior is inherent to the X9314WM-3T1 architecture and requires no external components or initialization code - a key advantage over volatile digital potentiometers.
Can the X9314WM-3T1 be used as a two-terminal variable resistor?
Yes, the X9314WM-3T1 can operate as a two-terminal variable resistor by connecting either VH/RH or VL/RL to VW/RW and using the remaining terminal as the second connection point. Its 40Ω typical wiper resistance and ±5V terminal rating ensure low insertion error and compatibility with high-impedance nodes - a verified configuration documented in the X9314WM-3T1 datasheet application notes.
What is the maximum allowable voltage across VH/RH and VL/RL for the X9314WM-3T1?
The absolute maximum voltage difference between VH/RH and VL/RL is 10V (ΔV = |VH/RH − VL/RL| ≤ 10V), with each terminal rated for −5V to +5V relative to VSS. This specification is explicitly defined in the Absolute Maximum Ratings table of the X9314WM-3T1 datasheet and ensures safe operation under transient conditions and mismatched supply scenarios.
Is the X9314WM-3T1 pin-compatible with other packages in the X9314 family?
No, the X9314WM-3T1 uses the 8-lead MSOP package (M8.118), which has different footprint dimensions and thermal characteristics than the 8-lead SOIC variant (M8.15). While electrical functionality and pin functions are identical across X9314 variants, PCB layout must be adapted for the MSOP body size and lead pitch - the X9314WM-3T1 is not a drop-in replacement for SOIC-packaged X9314 devices.
X9314WM-3T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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-MSOP
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9314WM-3T1 FAQ
1.How can I place an order for X9314WM-3T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9314WM-3T1 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 X9314WM-3T1 reliable?
The price and inventory of X9314WM-3T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9314WM-3T1 is usually 5 days.
3.What payment methods are accepted for X9314WM-3T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9314WM-3T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9314WM-3T1?
X9314WM-3T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9314WM-3T1 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 X9314WM-3T1?
For technical support, including X9314WM-3T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9314WM-3T1 requirements.
6.How does Aetrix verify that X9314WM-3T1 is sourced from the original manufacturer or authorized distributors?
All X9314WM-3T1 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 X9314WM-3T1 meets industry standards.
7.What is the process for return or replacement of X9314WM-3T1?
All X9314WM-3T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9314WM-3T1, 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 X9314WM-3T1 part is unused and in its original packaging.
Return procedure for X9314WM-3T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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