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Renesas X9314WSIZT1
- Part No.:
- X9314WSIZT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9314WSIZT1.pdf
- Description:
- IC DGTL POT 10KOHM 32TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,085
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Product details
Overview
X9314WSIZT1 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 X9314WSIZT1 datasheet, X9314WSIZT1 pinout, X9314WSIZT1 application, or X9314WSIZT1 equivalent, key selection criteria include wiper position retention on power-up, 40Ω typical wiper resistance, 5V ±10% supply operation, and compatibility with industrial temperature range (-40°C to +85°C) designs.
Technical Context
The X9314WSIZT1 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 when CS transitions high while INC is high.
It operates as either a three-terminal potentiometer (VH/RH–VW/RW–VL/RL) or two-terminal variable resistor, with wiper movement constrained to 0–31 positions without wraparound and full functionality maintained across VCC = 5V ±10% and terminal voltages from –5V to +5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 10kΩ ±20% - sets full-scale analog gain or attenuation range in biasing and feedback networks |
| Wiper Resistance | 40Ω typical - minimizes insertion loss and signal distortion at wiper output in precision divider configurations |
| Taper Type | Logarithmic - enables smooth, perceptually linear volume or brightness control in audio and display applications |
| Nonvolatile Storage | 100-year data retention - ensures factory-set or user-calibrated trim values persist across power cycles without backup power |
| Supply Voltage | 5V ±10% - compatible with standard TTL/CMOS logic rails and eliminates need for dedicated low-noise LDO |
| Terminal Voltage Range | ±5V - supports bipolar signal paths including AC-coupled audio, sensor front-ends, and op-amp level-shifting circuits |
| Standby Current | <500µA max - enables low-power operation during system sleep modes without compromising trim state integrity |
Pinout & Package
Package: 8-lead SOIC (Pb-free, RoHS compliant, package drawing M8.15), body width 3.9mm, lead pitch 1.27mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VH/RH | High terminal of resistor array | Fixed end of potentiometer; voltage reference point for wiper position-logic-level polarity relative to U/D input direction, not absolute potential |
| VL/RL | Low terminal of resistor array | Fixed opposite end; forms complete resistive path with VH/RH-voltage rating applies independently to each terminal vs. VSS |
| VW/RW | Wiper output terminal | Variable tap point; delivers intermediate voltage/current with 40Ω series resistance affecting loading and bandwidth |
| VCC | Positive supply input | 5V ±10% digital and analog supply; powers internal counter, memory, and switch drivers |
| VSS | Ground reference | Common return for all digital inputs and resistor array; must be low-impedance to minimize noise coupling into wiper path |
| CS | Chip select input | Active-low enable; initiates wiper movement when low; triggers nonvolatile store on rising edge if INC is high |
| U/D | Direction control input | Sets wiper increment/decrement direction during INC transitions-state may change dynamically while CS remains low |
| INC | Increment clock input | Negative-edge triggered; advances wiper one tap per valid edge-timing requires tCYC ≥ 4µs and tIW = 100–500µs for VW settling |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper position storage | Eliminates need for external EEPROM or MCU supervision-trim settings survive 100+ years and unlimited power cycles |
| Logarithmic taper | Matches human perception response for audio gain control and display brightness adjustment without software compensation |
| Make-before-break switching | Prevents open-circuit glitches during wiper transitions-critical for stable biasing in amplifier feedback loops |
| Three-wire serial interface | Reduces MCU GPIO count and eliminates need for SPI/I²C peripherals-compatible with simple microcontroller GPIO bit-banging |
| ±5V terminal voltage rating | Supports direct connection to bipolar op-amp stages and AC-coupled signal paths without level-shifting circuitry |
Applications
| Audio Volume Control | Sensor Signal Conditioning |
|---|---|
Use Scenario: Digital volume adjustment in consumer audio amplifiers with analog output stage. IC Role / Device Role / Timing Role: Three-terminal potentiometer configuring op-amp gain in an inverting amplifier feedback network. Use Value: Log taper provides perceptually linear volume steps; nonvolatile storage retains last user setting after power-off. | Use Scenario: Offset and gain calibration of bridge-based pressure sensors in industrial transmitters. IC Role / Device Role / Timing Role: Two-terminal variable resistor adjusting reference voltage in a ratiometric ADC driver circuit. Use Value: ±5V terminal rating allows direct integration with ±5V sensor excitation; 40Ω wiper resistance avoids loading error in high-impedance calibration nodes. |
| Power Supply Trim | Display Brightness Adjustment |
Use Scenario: Factory-trimmed output voltage setting in isolated DC-DC converters for telecom equipment. IC Role / Device Role / Timing Role: Precision two-terminal resistor in the feedback divider of a TL431-based shunt regulator loop. Use Value: 10kΩ RTOTAL matches standard TL431 design guidelines; 100-year data retention ensures long-term stability without recalibration. | Use Scenario: User-adjustable backlight intensity control in medical display panels. IC Role / Device Role / Timing Role: Log-taper potentiometer setting current-limiting resistance for LED driver IC analog dimming input. Use Value: Log taper enables smooth brightness transition across 32 steps; ±5V rating accommodates driver IC's analog control voltage range. |
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 | I²C interface, dual-channel, 10kΩ, 256-step linear taper, 2.7–5.5V supply | Requires I²C master; lacks log taper and nonvolatile storage-needs external MCU firmware to retain settings | Select when multi-channel control or higher resolution is required and system already supports I²C infrastructure |
| MCP41010-I/P | SPITM interface, 10kΩ, 257-step linear taper, volatile memory, 2.7–5.5V supply | No nonvolatile storage; linear taper necessitates lookup table for audio use; requires external capacitor for SPI timing | Choose for cost-sensitive designs needing SPI compatibility and where power-cycle reset is acceptable |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9314WSIZT1 uniquely combines log taper, true nonvolatile storage, and minimal three-wire control-making it optimal for standalone analog trim where power-loss resilience and perceptual linearity are critical.
Availability
X9314WSIZT1 is available at Aetrix Electronics and suitable for audio volume control, sensor signal conditioning, power supply trim, and display brightness adjustment requiring stable component supply across industrial temperature ranges.
Supply support for X9314WSIZT1 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 for power management, precision analog, and interface applications.
The X9314WSIZT1 belongs to Intersil's XDCP™ family of solid-state digital potentiometers engineered for reliable, maintenance-free resistance trimming in analog systems where mechanical potentiometers fail due to wear or environmental stress.
FAQ
What is the operating temperature range for the X9314WSIZT1?
The X9314WSIZT1 is rated for industrial operation from –40°C to +85°C. This range is confirmed in the Ordering Information table on page 2 of the FN8178 datasheet, where X9314WSIZ is explicitly listed with "–40 to +85°C" under TEMP RANGE. The device maintains full specification compliance-including 10kΩ resistance tolerance, 40Ω wiper resistance, and nonvolatile store functionality-across this entire range.
Does the X9314WSIZT1 require external power-up sequencing or voltage ramp rate control?
No, the X9314WSIZT1 imposes no restrictions on VCC or terminal voltage sequencing during power-up or power-down. As stated in the "Power-up and Down Requirement" section (page 3), there are no sequencing requirements. However, datasheet parameters fully apply only 1 ms after VCC reaches its final value, and the VCC ramp rate must stay within 0.2–50 mV/µs per AC timing specifications-ensuring reliable internal state initialization without external circuitry.
How is nonvolatile storage triggered on the X9314WSIZT1?
Nonvolatile storage on the X9314WSIZT1 occurs when the CS input transitions from LOW to HIGH while the INC input is held HIGH. This exact condition is defined in the Pin Descriptions (page 2) and Mode Selection table (page 5). The wiper position present at that moment is written to nonvolatile memory and retained for 100 years. No additional commands, clocks, or delays are required-only this precise timing relationship between CS and INC.
Can the X9314WSIZT1 be used with supply voltages other than 5V?
The X9314WSIZT1 is specified exclusively for 5V ±10% operation (i.e., 4.5V to 5.5V), as documented in the Ordering Information table (page 2) and Absolute Maximum Ratings (page 4). While the X9314 family includes variants like X9314WMIZ-3 rated for 3V–5.5V, the X9314WSIZT1 variant is not characterized or guaranteed for operation outside 4.5–5.5V-using lower voltages risks incomplete wiper movement or failed nonvolatile store operations.
What is the maximum allowable voltage difference between VH/RH and VL/RL terminals on the X9314WSIZT1?
The maximum voltage difference ΔV = |VH/RH – VL/RL| is strictly limited to 10V, as specified in the Absolute Maximum Ratings table (page 4). This limit applies regardless of individual terminal voltages, which may each swing from –5V to +5V relative to VSS. Exceeding 10V differential risks irreversible damage to the internal resistor array or transfer gates-even if both terminals remain within their ±5V absolute ratings.
X9314WSIZT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±600ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9314WSIZT1 FAQ
1.How can I place an order for X9314WSIZT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9314WSIZT1 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 X9314WSIZT1 reliable?
The price and inventory of X9314WSIZT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9314WSIZT1 is usually 5 days.
3.What payment methods are accepted for X9314WSIZT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9314WSIZT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9314WSIZT1?
X9314WSIZT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9314WSIZT1 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 X9314WSIZT1?
For technical support, including X9314WSIZT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9314WSIZT1 requirements.
6.How does Aetrix verify that X9314WSIZT1 is sourced from the original manufacturer or authorized distributors?
All X9314WSIZT1 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 X9314WSIZT1 meets industry standards.
7.What is the process for return or replacement of X9314WSIZT1?
All X9314WSIZT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9314WSIZT1, 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 X9314WSIZT1 part is unused and in its original packaging.
Return procedure for X9314WSIZT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9314WSIZT1 Tags
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MCP4018T-103E/LT
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MCP4018T-503E/LT
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MCP4011T-103E/SN
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MCP4017T-503E/LT
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MCP4018T-502E/LT
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MCP4017T-103E/LT
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MCP4531T-103E/MF
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MCP4021T-202E/SN
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MCP4023T-103E/CH
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MCP4022T-503E/CH
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MCP4551T-502E/MS
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