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Renesas X9317WS8T1
- Part No.:
- X9317WS8T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317WS8T1.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,198
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Product details
Overview
X9317WS8T1 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 100 wiper tap points, nonvolatile wiper position storage, and 3-wire up/down serial interface. It implements a 99-element resistor array with temperature-compensated end-to-end resistance (±20% tolerance), operates from 4.5V to 5.5V, and delivers low-noise performance (–120 dBV) for precision analog trimming in voltage divider or variable resistor configurations.
For engineers reviewing the X9317WS8T1 datasheet, X9317WS8T1 pinout, X9317WS8T1 application, or X9317WS8T1 equivalent, key selection considerations include its 10 kΩ end-to-end resistance, SOIC-8 package, industrial temperature range (–40°C to +85°C), nonvolatile recall on power-up, and compatibility with DC bias adjustment, laser diode bias control, and voltage regulator output tuning.
Technical Context
The X9317WS8T1 integrates a 7-bit up/down counter, decoder, nonvolatile memory, and resistor array with make-before-break wiper switching. Its control logic responds to CS (chip select), U/D (direction), and edge-triggered INC (increment) signals to position the wiper across 100 discrete taps.
Wiper position is retained in nonvolatile memory for 100 years and recalled automatically at power-up. The device supports both three-terminal potentiometer (voltage divider) and two-terminal variable resistor (current control) topologies, with wiper resistance of 200 Ω (typ.) at 5 V and ratiometric temperature coefficient of ±20 ppm/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10 kΩ ±20% - defines full-scale analog range and load interaction in voltage divider applications |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard 5 V systems; no operation below 4.5 V |
| Wiper Tap Resolution | 100 positions (0–99) - enables 1% step resolution for fine analog trimming |
| Nonvolatile Storage | 100-year data retention, 100,000 write cycles - ensures long-term calibration stability without external EEPROM |
| Wiper Noise | –120 dBV (ref. 1 kHz) - supports low-noise signal paths in precision sensor or audio bias circuits |
| Standby Current | <5 µA - enables ultra-low-power operation during system sleep modes |
| Temperature Range | –40°C to +85°C - qualified for industrial environments including motor control and telecom infrastructure |
Pinout & Package
Package: 8-lead SOIC (M8.15E), RoHS-compliant, narrow-body plastic package with 1.27 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control line; toggling moves wiper up/down per U/D state |
| 2 (U/D) | Direction control input | Logic level determines wiper movement direction (HIGH = up, LOW = down) |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential in voltage divider configuration |
| 4 (VSS) | Ground reference | Primary return path for supply and signal currents; must be low-impedance |
| 5 (RW) | Wiper terminal | Movable contact point; series resistance ≤400 Ω enables low-distortion analog signal routing |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential or ground in voltage divider |
| 7 (CS) | Chip select | Active-low enable; HIGH initiates nonvolatile store when INC is also HIGH |
| 8 (VCC) | Supply voltage | Power input (4.5–5.5 V); powers internal logic, memory, and resistor array |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear, contact bounce, and environmental sensitivity of analog trimmers |
| 3-wire serial up/down interface | Requires only three GPIOs-no SPI/I²C controller needed; simplifies MCU integration |
| Nonvolatile wiper position recall | Restores last-trimmed setting at power-on without host initialization or firmware overhead |
| Temperature-compensated resistor array | ±300 ppm/°C total resistance drift and ±20 ppm/°C ratiometric drift ensure stable gain/offset over temperature |
| Low-power CMOS design | Standby current <5 µA enables battery-powered calibration and always-on analog subsystems |
Applications
| LCD Bias Control | DC Bias Adjustment |
|---|---|
Use Scenario: Setting precise VCOM voltage in TFT-LCD panels to minimize image flicker and improve grayscale uniformity. IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as adjustable voltage divider between VDD and ground. Use Value: 100-tap resolution and nonvolatile recall maintain factory-calibrated bias across panel lifetime and power cycles. |
Use Scenario: Trimming reference voltage offsets in op-amp-based sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Two-terminal variable resistor in feedback path of instrumentation amplifier. Use Value: Low wiper noise (–120 dBV) prevents injection of audible or measurement-band interference into sensitive analog front ends. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
Use Scenario: Fine-tuning constant-current source for laser diode driver ICs to stabilize optical output power. IC Role / Device Role / Timing Role: Two-terminal variable resistor in current-sense feedback loop of LM317 or similar regulator. Use Value: Endurance rating of 100,000 writes supports field recalibration during laser aging compensation without hardware replacement. |
Use Scenario: Dynamically adjusting output voltage of adjustable linear regulators (e.g., LM317) in programmable power supplies. IC Role / Device Role / Timing Role: Three-terminal potentiometer replacing mechanical trimmer in ADJ pin voltage divider network. Use Value: Industrial temperature range (–40°C to +85°C) and ±20% RTOTAL tolerance ensure stable regulation across ambient and load transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5171BRMZ-10 | I²C interface, 64-tap resolution, 10 kΩ, ±30% RTOTAL tolerance, 2.7–5.5 V supply | Lacks nonvolatile recall; requires host MCU to reinitialize wiper position after power cycle | Preferred where I²C bus availability and smaller footprint outweigh need for autonomous power-up behavior |
| MCP41010-I/P | SPITM interface, 257-tap resolution, 10 kΩ, ±20% RTOTAL, 2.7–5.5 V, volatile wiper register only | No nonvolatile memory; wiper resets to mid-scale (128) on power-up unless externally reprogrammed | Suitable for applications requiring finer resolution and faster update rates, with host-controlled initialization |
Compared with AD5171BRMZ-10 and MCP41010-I/P, the X9317WS8T1 uniquely combines 100-tap resolution, guaranteed nonvolatile recall, and 3-wire simplicity-enabling self-contained analog trimming without firmware dependency or bus resource contention.
Availability
X9317WS8T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode biasing, and voltage regulator output tuning requiring stable component supply, long-term calibration integrity, and industrial-grade thermal reliability.
Supply support for X9317WS8T1 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
Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and IoT applications.
The X9317WS8T1 belongs to Renesas' XDCP™ (Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical trimmers in high-reliability analog signal conditioning, bias control, and calibration-critical systems.
FAQ
What is the operating voltage range for the X9317WS8T1?
The X9317WS8T1 operates from 4.5 V to 5.5 V. It is not rated for 2.7 V operation-unlike some variants in the X9317 family (e.g., X9317WS8Z-2.7), the X9317WS8T1 is specified only for 5 V ±10% supply. Operating outside this range may result in undefined wiper behavior or failure to store positions in nonvolatile memory.
Does the X9317WS8T1 retain its wiper position after power loss?
Yes, the X9317WS8T1 stores the wiper position in nonvolatile memory and automatically recalls it upon power-up. This feature is intrinsic to the device and requires no external components or host intervention. The stored value remains valid for up to 100 years under normal operating conditions.
What package type does the X9317WS8T1 use?
The X9317WS8T1 uses an 8-lead SOIC package (JEDEC MS-012, drawing M8.15E), with 1.27 mm lead pitch and RoHS-compliant matte tin plating. It is distinct from MSOP (M8.118) and TSSOP (M8.173) variants in the same family and is not pin-compatible with those packages.
Can the X9317WS8T1 be used as a two-terminal variable resistor?
Yes, the X9317WS8T1 supports two-terminal operation by connecting either RH or RL to RW and using the remaining terminal with the wiper. In this mode, it functions as a digitally adjustable rheostat for current control, with wiper resistance ≤400 Ω at 5 V and end-to-end resistance tolerance of ±20%.
How many wiper positions does the X9317WS8T1 support?
The X9317WS8T1 provides exactly 100 discrete wiper positions (0 through 99), corresponding to a 7-bit counter decoded to select one of 100 tap points across its 99-element resistor array. Each step represents approximately 1% of full-scale resistance, enabling precise analog trimming without interpolation.
X9317WS8T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 100
- Resistance (Ohms):
- 10k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 200
X9317WS8T1 FAQ
1.How can I place an order for X9317WS8T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WS8T1 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 X9317WS8T1 reliable?
The price and inventory of X9317WS8T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317WS8T1 is usually 5 days.
3.What payment methods are accepted for X9317WS8T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WS8T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WS8T1?
X9317WS8T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WS8T1 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 X9317WS8T1?
For technical support, including X9317WS8T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WS8T1 requirements.
6.How does Aetrix verify that X9317WS8T1 is sourced from the original manufacturer or authorized distributors?
All X9317WS8T1 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 X9317WS8T1 meets industry standards.
7.What is the process for return or replacement of X9317WS8T1?
All X9317WS8T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WS8T1, 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 X9317WS8T1 part is unused and in its original packaging.
Return procedure for X9317WS8T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WS8T1 Tags
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