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Renesas X9317WV8IZT1
- Part No.:
- X9317WV8IZT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9317WV8IZT1.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,122
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Product details
Overview
X9317WV8IZT1 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 operates from 2.7V to 5.5V, delivers ±20% end-to-end resistance tolerance, and supports voltage divider or variable resistor configurations in precision analog trimming applications.
For engineers reviewing the X9317WV8IZT1 datasheet, X9317WV8IZT1 pinout, X9317WV8IZT1 application, or X9317WV8IZT1 equivalent, key selection criteria include its -40°C to +85°C industrial temperature range, TSSOP-8 package, 10kΩ total resistance, low 5µA standby current, and guaranteed ratiometric temperature coefficient of ±20 ppm/°C - all critical for stable bias and gain control in production-grade embedded systems.
Technical Context
The X9317WV8IZT1 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 glitch-free transitions during wiper movement, while the stored wiper value is automatically recalled at power-up.
It uses a solid-state resistor array with temperature-compensated elements, delivering ±300 ppm/°C absolute RTOTAL drift and ±20 ppm/°C ratiometric tracking - enabling accurate voltage division under thermal variation without external calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10 kΩ ±20% - defines full-scale analog range for voltage divider or current-limiting use |
| Supply Voltage Range | 2.7 V to 5.5 V - supports single-supply operation across 3.3 V and 5 V logic domains |
| Standby Current | <5 µA - enables ultra-low-power bias adjustment in battery-backed or energy-sensitive systems |
| Wiper Resistance | 200 Ω typical (at 5 V) - limits signal path error and loading in high-impedance feedback networks |
| Temperature Coefficient | ±20 ppm/°C ratiometric - ensures stable voltage division ratio across -40°C to +85°C |
| Nonvolatile Endurance | 100,000 write cycles - supports field recalibration and long-term parameter tuning |
| Resolution | 1% per tap (1/99 step) - provides fine-grained analog adjustment without DAC interpolation |
Pinout & Package
Package: 8-lead TSSOP (RoHS-compliant, JEDEC MO-153 AC), 4.4 mm × 3.0 mm body, 0.65 mm pitch, -40°C to +85°C operating range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control line; toggling moves wiper up/down based on U/D state |
| 2 (U/D) | Direction control input | Logic level selects wiper increment (+) or decrement (-) on each INC edge |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential in voltage divider configuration |
| 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 series resistance and tracks selected tap position |
| 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 with INC HIGH initiates nonvolatile store; HIGH alone enters standby |
| 8 (VCC) | Power supply | 2.7–5.5 V CMOS supply; powers logic and resistor array; decoupling required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last programmed tap position across power cycles - eliminates startup calibration |
| 3-wire serial interface | Requires only CS, U/D, and INC signals - no clock or data lines needed for simple microcontroller GPIO control |
| Make-before-break switching | Prevents open-circuit glitches during wiper transition - essential for stable feedback loop operation |
| Ratiometric tempco | ±20 ppm/°C ensures consistent voltage division ratio over temperature - critical for precision biasing |
| Low power standby | <5 µA ICC allows continuous connection in always-on circuits without significant battery drain |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
Use Scenario: Adjusting VCOM or gamma voltage in TFT-LCD panels to maintain grayscale fidelity across temperature and aging. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing programmable DC offset to op-amp-based bias generators. Use Value: Enables factory and field calibration of display uniformity without mechanical potentiometers or EEPROM-based DACs. |
Use Scenario: Setting precise bias current for laser diodes in optical transceivers and fiber modules. IC Role / Device Role / Timing Role: Two-terminal variable resistor in the feedback path of a constant-current source IC. Use Value: Delivers stable current setpoint with ±20 ppm/°C ratiometric tracking - minimizing optical power drift over temperature. |
| Voltage Regulator Output Trim | DC Offset Adjustment in Instrumentation |
Use Scenario: Fine-tuning output voltage of adjustable LDOs or switching regulators in power management subsystems. IC Role / Device Role / Timing Role: Resistor divider element controlling feedback node voltage in standard regulator topology. Use Value: Supports post-manufacturing calibration and dynamic retrimming via MCU - replacing fixed resistors and manual trim pots. |
Use Scenario: Nulling input offset in precision op-amp circuits for sensor signal conditioning and data acquisition front-ends. IC Role / Device Role / Timing Role: Adjustable voltage divider injecting correction voltage into summing junction or reference node. Use Value: Achieves sub-mV offset correction with 1% resolution and nonvolatile retention - eliminating manual calibration steps. |
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 taps, 10 kΩ, 2.7–5.5 V, ±30% RTOL, 500 ppm/°C tempco | Requires I²C master; lower resolution and worse ratiometric stability than X9317WV8IZT1 | Choose when I²C bus availability and system-level protocol reuse outweigh resolution and tempco requirements |
| MCP41HV51-103E/ST | SPI interface, 257 taps, 10 kΩ, 4.5–18 V, ±20% RTOL, ±100 ppm/°C ratiometric | Higher voltage rating and SPI compatibility, but larger SOIC-8 package and reduced tempco performance | Choose for high-voltage analog rails (>5.5 V) or existing SPI infrastructure where TSSOP footprint is not constrained |
Compared with AD5171BRMZ-10 and MCP41HV51-103E/ST, the X9317WV8IZT1 offers superior ratiometric temperature stability (±20 ppm/°C vs. ≥100 ppm/°C), simpler 3-wire control, and industry-leading 100,000-cycle endurance - making it optimal for thermally demanding, calibration-critical analog trimming in compact industrial designs.
Availability
X9317WV8IZT1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode biasing, voltage regulator output trimming, and precision DC offset adjustment requiring stable component supply across industrial temperature ranges and long product lifecycles.
Supply support for X9317WV8IZT1 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 specializing in microcontrollers, analog power, and mixed-signal solutions for automotive, industrial, and IoT applications.
The X9317 family was designed specifically for high-reliability analog trimming tasks - combining nonvolatile storage, low-noise solid-state resistance, and robust thermal performance in miniature packages for embedded calibration and bias control.
FAQ
What is the operating temperature range for the X9317WV8IZT1?
The X9317WV8IZT1 is rated for -40°C to +85°C, qualifying it for industrial-grade applications. This extended range is confirmed in the Ordering Information table (Page 2) and Absolute Maximum Ratings (Page 4) of the FN8183 datasheet. The device maintains full specification compliance-including ±20 ppm/°C ratiometric temperature coefficient and 100,000-cycle endurance-across this entire span. Its TSSOP-8 package (M8.173) is validated for thermal performance under these conditions.
Does the X9317WV8IZT1 require an external clock or data line for communication?
No, the X9317WV8IZT1 uses a 3-wire up/down serial interface with only CS, U/D, and INC pins-no clock or bidirectional data line is needed. As described in the Pin Descriptions (Page 3) and Principles of Operation (Page 8), INC is negative-edge-triggered and U/D sets direction; toggling INC while CS is low increments or decrements the wiper. This minimalist interface simplifies GPIO-based control from low-pin-count MCUs and eliminates timing-critical clock distribution.
How is wiper position stored and recalled in the X9317WV8IZT1?
The X9317WV8IZT1 stores wiper position in nonvolatile memory by asserting CS HIGH while INC is HIGH-a dedicated store command documented in the Mode Selection table (Page 9). Upon power-up, the stored value is automatically loaded into the counter and applied to the wiper (Page 6, Power-up and Down Requirements). This behavior is guaranteed across 100 years of data retention and 100,000 write cycles, as verified in the Endurance and Data Retention table (Page 5).
What is the maximum wiper current rating for the X9317WV8IZT1?
The X9317WV8IZT1 specifies a maximum wiper current (IW) of ±4.4 mA, as defined in the Potentiometer Specifications table (Page 4). This limit applies regardless of VCC (2.7–5.5 V) and accounts for worst-case power dissipation in the wiper switch network. Exceeding this current risks exceeding the 10 mW total power rating or degrading wiper resistance stability, especially at elevated temperatures.
Can the X9317WV8IZT1 be used as a two-terminal variable resistor?
Yes, the X9317WV8IZT1 supports two-terminal operation by connecting RH and RW (or RL and RW) externally, as shown in Figure 4 (Page 9) and Applications Information (Page 8). In this mode, it functions as a digitally adjustable current-limiting or gain-setting resistor. The datasheet confirms 10 mW power rating for RTOTAL ≥ 10 kΩ and specifies wiper resistance (200 Ω typ.) and ratiometric tempco (±20 ppm/°C) - both critical for predictable two-terminal behavior.
X9317WV8IZT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 200
X9317WV8IZT1 FAQ
1.How can I place an order for X9317WV8IZT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WV8IZT1 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 X9317WV8IZT1 reliable?
The price and inventory of X9317WV8IZT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317WV8IZT1 is usually 5 days.
3.What payment methods are accepted for X9317WV8IZT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WV8IZT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WV8IZT1?
X9317WV8IZT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WV8IZT1 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 X9317WV8IZT1?
For technical support, including X9317WV8IZT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WV8IZT1 requirements.
6.How does Aetrix verify that X9317WV8IZT1 is sourced from the original manufacturer or authorized distributors?
All X9317WV8IZT1 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 X9317WV8IZT1 meets industry standards.
7.What is the process for return or replacement of X9317WV8IZT1?
All X9317WV8IZT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WV8IZT1, 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 X9317WV8IZT1 part is unused and in its original packaging.
Return procedure for X9317WV8IZT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WV8IZT1 Tags
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