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Renesas X9317WS8-2.7
- Part No.:
- X9317WS8-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317WS8-2.7.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,685
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Product details
Overview
X9317WS8-2.7 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 100 wiper tap points, nonvolatile wiper position storage, and 2.7V to 5.5V supply operation. It implements a 99-element resistor array with temperature-compensated end-to-end resistance tolerance of ±20%, low standby current (<5 µA), and 10 kΩ total resistance - used for precision DC bias adjustment and voltage regulator output control in industrial instrumentation.
For engineers reviewing the X9317WS8-2.7 datasheet, X9317WS8-2.7 pinout, X9317WS8-2.7 application, or X9317WS8-2.7 equivalent, key selection criteria include its 3-wire up/down interface timing (tCYC = 2 µs), wiper resistance (200 Ω typ. at 5V), ratiometric temperature coefficient (±20 ppm/°C), and SOIC-8 package compatibility with legacy analog trim circuits.
Technical Context
The X9317WS8-2.7 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 100 discrete taps on a 99-resistor ladder. Its "make-before-break" switching ensures continuity during wiper transitions, preventing open-circuit glitches in voltage divider configurations.
Operation relies on three digital inputs: CS (chip select), U/D (direction control), and INC (edge-triggered increment/decrement). Wiper position is stored to nonvolatile memory only when CS rises while INC is HIGH - enabling deterministic power-up behavior without external EEPROM or configuration firmware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10 kΩ ±20% - defines full-scale voltage division range and load interaction in bias networks |
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct interface with 3.3 V and 5 V logic systems without level shifting |
| Wiper Resistance | 200 Ω typical at 5 V - limits insertion error and thermal noise in precision gain/offset trim paths |
| Standby Current | <5 µA - supports battery-powered or energy-sensitive applications requiring ultra-low quiescent power |
| Ratiometric Tempco | ±20 ppm/°C - ensures stable voltage division ratio over temperature, critical for sensor signal conditioning |
| Resolution | 1% (1/99 step) - provides fine-grained analog tuning resolution equivalent to mechanical potentiometers |
| Nonvolatile Endurance | 100,000 write cycles - supports field calibration and long-term parameter retention without wear-out concerns |
| Power-up Recall | Automatic wiper restore from NVM - eliminates startup initialization code and guarantees repeatable initial state |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, operating temperature range 0°C to +70°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge triggered; toggling moves wiper up/down per U/D state - enables simple microcontroller GPIO control |
| 2 (U/D) | Direction control input | Logic level sets wiper movement direction; allows bidirectional trimming without command protocol overhead |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential in voltage divider or current-sense path |
| 4 (VSS) | Ground reference | Common return for internal logic and analog array; must be low-impedance to minimize noise coupling |
| 5 (RW) | Wiper terminal | Movable tap point; output impedance varies with position (200–1000 Ω); requires buffering for high-Z loads |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to ground or lower potential node in adjustable feedback networks |
| 7 (CS) | Chip select | Active-low enable; rising edge with INC HIGH initiates nonvolatile store - prevents accidental writes |
| 8 (VCC) | Supply voltage | 2.7–5.5 V CMOS rail; powers logic and analog sections; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last-set position across power cycles - eliminates need for external calibration memory or boot-time reinitialization |
| 3-wire serial interface | Requires only three GPIOs (CS, U/D, INC) - avoids SPI/I²C resource contention and simplifies firmware integration |
| Temperature-compensated array | ±300 ppm/°C absolute RTOTAL tempco and ±20 ppm/°C ratiometric tempco - maintains accuracy in ambient-varying environments |
| Make-before-break switching | Prevents open-circuit transients during wiper movement - essential for stable operation in closed-loop amplifier feedback paths |
| Low-noise performance | -120 dBV noise (1 kHz ref) - suitable for audio bias, sensor excitation, and precision reference trimming where signal integrity matters |
| Pb-free RoHS compliance | Matte tin e3 termination - compatible with both SnPb and lead-free reflow profiles per J-STD-020 |
Applications
| LCD Bias Control | DC Bias Adjustment |
|---|---|
Use Scenario: Setting optimal VCOM voltage for TFT-LCD panels to minimize image flicker and ghosting. IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as voltage divider between VDD and ground, with RW feeding VCOM driver amplifier. Use Value: Enables factory calibration and field recalibration without mechanical potentiometer replacement; ±20 ppm/°C ratiometric stability maintains display uniformity over temperature. |
Use Scenario: Trimming input offset voltage in op-amp-based sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp feedback loop, adjusting gain or nulling DC offset. Use Value: 100-tap resolution and nonvolatile recall ensure repeatable calibration across production batches and device lifetimes. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
Use Scenario: Fine-tuning bias current for laser diodes in optical transceivers to meet eye-diagram specifications. IC Role / Device Role / Timing Role: Adjustable current-limiting resistor in constant-current source topology, connected between laser cathode and ground. Use Value: Low wiper resistance (200 Ω typ.) minimizes voltage drop and thermal drift; <5 µA standby current reduces system-level power budget impact. |
Use Scenario: Dynamically adjusting output voltage of adjustable LDOs or switching regulators via feedback divider network. IC Role / Device Role / Timing Role: Upper leg of resistive divider (RH–RW) connected to regulator feedback pin; RW position sets VOUT. Use Value: Nonvolatile storage allows preset output voltages (e.g., 3.3 V, 2.5 V) to persist after power loss - critical for configurable power rails in embedded systems. |
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, 2.7–5.5 V - lacks up/down simplicity and nonvolatile auto-recall on power-up | Requires I²C master and firmware stack; no native power-on default - needs initialization sequence | Choose for systems already using I²C infrastructure and requiring multiple DCPs on shared bus |
| MCP41HV51-103 | 100 kΩ end-to-end resistance, SPI interface, 2.7–5.5 V - higher resistance increases sensitivity to leakage and noise in low-voltage bias paths | Higher RTOTAL limits usable voltage range in 3.3 V systems; SPI adds pin count and timing complexity vs. 3-wire up/down | Choose when higher resistance values are needed for current-sensing or high-impedance feedback networks |
Compared with AD5171BRMZ-10 and MCP41HV51-103, the X9317WS8-2.7 delivers deterministic power-up behavior, minimal GPIO footprint, and tighter ratiometric temperature stability - making it optimal for cost-sensitive, firmware-light analog trimming in industrial and consumer electronics.
Availability
X9317WS8-2.7 is available at Aetrix Electronics and suitable for LCD bias control, DC bias adjustment, and voltage regulator output control requiring stable component supply, long-term calibration retention, and RoHS-compliant manufacturing.
Supply support for X9317WS8-2.7 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 X9317WS8-2.7 belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically to replace mechanical trimmers in precision analog circuits where reliability, repeatability, and nonvolatile setting retention are critical.
FAQ
What is the operating voltage range for the X9317WS8-2.7?
The X9317WS8-2.7 operates from 2.7 V to 5.5 V, supporting both 3.3 V and 5 V systems without external regulation. This range is explicitly specified in the Absolute Maximum Ratings and Potentiometer Specifications tables of the FN8183 datasheet, with full functionality guaranteed across the commercial temperature range (0°C to +70°C).
Does the X9317WS8-2.7 retain its wiper position after power cycling?
Yes, the X9317WS8-2.7 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is confirmed in the device overview, block diagram description, and Principles of Operation section of the datasheet - ensuring repeatable startup conditions without host intervention.
How many wiper positions does the X9317WS8-2.7 support?
The X9317WS8-2.7 supports exactly 100 discrete wiper tap points, corresponding to a 99-element resistor array. This is stated in the title, overview, and Pin Descriptions section, and verified by the 7-bit counter architecture (2⁷ = 128 states, but only 100 are decoded and usable).
What package type is used for the X9317WS8-2.7?
The X9317WS8-2.7 uses an 8-lead narrow-body SOIC package (JEDEC MS-012, drawing M8.15E), as confirmed in the Ordering Information table on page 2 of FN8183 Rev.10.01. This package is RoHS-compliant and rated for 0°C to +70°C operation.
Can the X9317WS8-2.7 be used as a two-terminal variable resistor?
Yes, the X9317WS8-2.7 can be configured as a two-terminal variable resistor by connecting either RH or RL to RW and using the remaining terminal plus RW. This usage mode is explicitly supported in the Applications section and Figure 4 ("Two Terminal Variable Resistor") of the datasheet.
X9317WS8-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 2.7V ~ 5.5V
- 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):
- 400
X9317WS8-2.7 FAQ
1.How can I place an order for X9317WS8-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WS8-2.7 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 X9317WS8-2.7 reliable?
The price and inventory of X9317WS8-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317WS8-2.7 is usually 5 days.
3.What payment methods are accepted for X9317WS8-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WS8-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WS8-2.7?
X9317WS8-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WS8-2.7 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 X9317WS8-2.7?
For technical support, including X9317WS8-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WS8-2.7 requirements.
6.How does Aetrix verify that X9317WS8-2.7 is sourced from the original manufacturer or authorized distributors?
All X9317WS8-2.7 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 X9317WS8-2.7 meets industry standards.
7.What is the process for return or replacement of X9317WS8-2.7?
All X9317WS8-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WS8-2.7, 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 X9317WS8-2.7 part is unused and in its original packaging.
Return procedure for X9317WS8-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WS8-2.7 Tags
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