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Renesas X9317WV8
- Part No.:
- X9317WV8
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9317WV8.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,084
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Product details
Overview
X9317WV8 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with 100 wiper tap positions, nonvolatile wiper position storage, and 3-wire up/down serial interface. It functions as a three-terminal voltage divider or two-terminal variable resistor for precision analog trimming in DC bias, gain/offset, and regulator output control circuits.
For engineers reviewing the X9317WV8 datasheet, X9317WV8 pinout, X9317WV8 application, or X9317WV8 equivalent, this device delivers low-noise (–120 dBV), temperature-compensated resistance (±300 ppm/°C), <5 µA standby current, and guaranteed 100,000 write cycles with 100-year data retention - critical for industrial trim and embedded calibration systems.
Technical Context
The X9317WV8 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 100 discrete taps. Its "make-before-break" switching ensures continuity during wiper transitions, while the resistor array exhibits ratiometric temperature coefficient of ±20 ppm/°C for stable voltage division.
Control logic responds to negative-edge-triggered INC pulses under active CS low, with U/D determining direction. A store operation occurs only when CS rises while INC is high, writing the current wiper value to EEPROM; power-up automatically recalls the last stored position.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10 kΩ ±20% - defines full-scale adjustment range and power dissipation limit (10 mW max) |
| Wiper resolution | 100 taps (0–99) - enables 1% step resolution for fine analog tuning |
| Supply voltage range | 4.5 V to 5.5 V - compatible with standard 5 V logic and analog rails |
| Standby current | <5 µA - supports ultra-low-power battery-backed or always-on calibration circuits |
| Wiper resistance | 200 Ω typical (400 Ω max at 5 V) - contributes minimal error in voltage divider configurations |
| Nonvolatile endurance | 100,000 data changes per bit - ensures long-term field reliability for recalibration cycles |
| AC timing: INC cycle time | 2 µs minimum - supports fast digital trimming via microcontroller GPIO |
Pinout & Package
Package: 8-lead TSSOP (RoHS-compliant, JEDEC MO-153 AC, M8.173 drawing), 4.4 mm × 3.0 mm body, 0.65 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control signal; toggling moves wiper up/down per U/D state |
| 2 (U/D) | Direction control input | Logic level selects wiper movement direction during INC transitions |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential in voltage divider mode |
| 4 (VSS) | Ground reference | Return path for supply and signal; must be low-impedance for noise-sensitive analog use |
| 5 (RW) | Wiper output | Movable terminal; presents 200 Ω typical series resistance and connects to one of 100 taps |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential or ground in voltage divider mode |
| 7 (CS) | Chip select | Active-low enable; rising edge with INC high initiates nonvolatile store operation |
| 8 (VCC) | Supply voltage | 4.5–5.5 V CMOS supply; powers logic, memory, and resistor array; decoupling required |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last set position across power cycles - eliminates startup drift in regulated supplies and sensor bias |
| Temperature-compensated array | ±300 ppm/°C absolute TC and ±20 ppm/°C ratiometric TC - maintains voltage division accuracy over –40°C to +85°C |
| Low-noise performance | –120 dBV noise (1 kHz ref) - suitable for audio bias, precision references, and low-level signal conditioning |
| Make-before-break switching | Prevents open-circuit transients during wiper movement - avoids glitches in feedback loops and amplifier bias networks |
| CMOS-compatible 3-wire interface | No protocol overhead or address decoding needed - simplifies integration with 8-bit MCUs and FPGA GPIO |
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 providing stable, user-adjustable DC offset between panel common electrode and ground. Use Value: Nonvolatile recall ensures consistent display performance after power cycling; ±20 ppm/°C ratiometric TC prevents thermal drift-induced contrast shift. |
Use Scenario: Calibrating input offset voltage in op-amp-based instrumentation amplifiers before signal acquisition. IC Role / Device Role / Timing Role: Two-terminal variable resistor in feedback path to null amplifier input offset during production test. Use Value: 100-tap resolution enables sub-millivolt trimming accuracy; <5 µA standby current avoids loading reference sources during idle periods. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
Use Scenario: Fine-tuning constant-current source for laser diode driver ICs to maintain precise optical output power. IC Role / Device Role / Timing Role: Adjustable current-setting resistor in the sense path of a laser driver's feedback loop. Use Value: Low wiper resistance (200 Ω typ.) minimizes parasitic voltage drop; 100,000-cycle endurance supports field recalibration over product lifetime. |
Use Scenario: Dynamically adjusting output voltage of adjustable LDOs (e.g., LM317) in programmable power supplies. IC Role / Device Role / Timing Role: Three-terminal potentiometer replacing mechanical trimmer in feedback divider network. Use Value: Power-up recall guarantees safe default output voltage; ±20% RTOTAL tolerance accommodates manufacturing variance without affecting regulation stability. |
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, 256-tap, 10 kΩ, ±30% RTOL, 2.7–5.5 V supply | Requires I²C master; supports dual independent pots; higher resolution but looser resistance tolerance | Choose for multi-pot systems or when I²C bus resources are available and dual trimming is needed |
| MCP41010-I/P | SPITM interface, single-channel, 256-tap, 10 kΩ, ±20% RTOL, 2.7–5.5 V supply | Requires SPI clock/data lines; faster update rate (10 MHz SPI); no built-in nonvolatile store on power-up | Choose for high-speed digital trimming where external MCU handles initialization and storage |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9317WV8 offers simpler 3-wire up/down control without protocol overhead, guaranteed power-up recall without firmware intervention, and superior ratiometric temperature stability - making it optimal for cost-sensitive, single-pot, self-contained analog calibration.
Availability
X9317WV8 is available at Aetrix Electronics and suitable for LCD bias control, DC bias adjustment, gain and offset trim, laser diode bias control, and voltage regulator output control requiring stable component supply across commercial and industrial temperature ranges.
Supply support for X9317WV8 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, infrastructure, and IoT applications.
The X9317 family was designed specifically for solid-state replacement of mechanical potentiometers in precision analog trimming applications - emphasizing nonvolatile retention, temperature stability, and low-power CMOS compatibility.
FAQ
What is the operating temperature range for the X9317WV8?
The X9317WV8 is rated for 0°C to +70°C (commercial grade). Its ordering suffix "V8" corresponds to the TSSOP package variant with this temperature range, as confirmed in the Renesas FN8183 Rev.10.01 datasheet Table on page 2. The device meets all electrical specifications across this range, including ±20 ppm/°C ratiometric temperature coefficient and <5 µA standby current.
Does the X9317WV8 require an external microcontroller to retain its wiper position after power loss?
No. The X9317WV8 stores the wiper position in on-chip nonvolatile memory and automatically recalls it on power-up without any external controller or firmware. This behavior is intrinsic to the X9317WV8 design and requires no initialization code - the wiper resumes the last stored value within 5 µs after VCC stabilizes, as specified in the Power-up and Down Requirements section of the datasheet.
Can the X9317WV8 be used with a 3.3 V microcontroller GPIO interface?
Yes, but only if the X9317WV8 is operated within its 4.5–5.5 V supply range and the microcontroller's 3.3 V outputs meet the X9317WV8's VIH (≥0.7 × VCC = 3.15 V) and VIL (≤0.1 × VCC = 0.45 V) thresholds. Since 3.3 V exceeds 3.15 V and is well above 0.45 V, standard 3.3 V logic levels are compatible with the X9317WV8's CS, U/D, and INC inputs when VCC = 5 V.
What is the maximum wiper current rating for the X9317WV8?
The X9317WV8 supports a maximum wiper current (IW) of ±4.4 mA, as specified in the Absolute Maximum Ratings table (page 4) and confirmed in the DC Electrical Specifications (page 5). Exceeding this value risks permanent damage to the internal wiper switches. For applications requiring higher current, external buffering (e.g., op-amp follower) is recommended.
How does the X9317WV8 differ from the X9317WV8Z-2.7 variant?
The X9317WV8 operates at 4.5–5.5 V, while the X9317WV8Z-2.7 variant supports a wider 2.7–5.5 V supply range. Both share identical pinout, 10 kΩ resistance, TSSOP-8 package, and functionality. The "-2.7" suffix denotes extended VCC range capability - the X9317WV8 itself is not rated below 4.5 V and must not be operated at 2.7 V.
X9317WV8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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:
- 5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-TSSOP
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 200
X9317WV8 FAQ
1.How can I place an order for X9317WV8 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WV8 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 X9317WV8 reliable?
The price and inventory of X9317WV8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317WV8 is usually 5 days.
3.What payment methods are accepted for X9317WV8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WV8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WV8?
X9317WV8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WV8 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 X9317WV8?
For technical support, including X9317WV8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WV8 requirements.
6.How does Aetrix verify that X9317WV8 is sourced from the original manufacturer or authorized distributors?
All X9317WV8 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 X9317WV8 meets industry standards.
7.What is the process for return or replacement of X9317WV8?
All X9317WV8 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WV8, 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 X9317WV8 part is unused and in its original packaging.
Return procedure for X9317WV8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WV8 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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MCP4021T-202E/SN
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MCP4023T-103E/CH
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