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Renesas X9317WV8-2.7T1
- Part No.:
- X9317WV8-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9317WV8-2.7T1.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,319
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Product details
Overview
X9317WV8-2.7T1 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%, wiper resistance ≤400Ω at 2.7V, and standby current <5µA. It serves as a three-terminal voltage divider or two-terminal variable resistor in precision analog trimming applications.
For engineers reviewing the X9317WV8-2.7T1 datasheet, X9317WV8-2.7T1 pinout, X9317WV8-2.7T1 application, or X9317WV8-2.7T1 equivalent, key selection criteria include its 8-pin TSSOP package, 10kΩ total resistance, -40°C to +85°C industrial temperature range, 3-wire up/down interface timing (tCYC = 2µs), and nonvolatile store/reload capability for power-up repeatability.
Technical Context
The X9317WV8-2.7T1 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 99 resistive elements. Its "make-before-break" switching ensures continuity during tap transitions, while ratiometric temperature coefficient of ±20 ppm/°C maintains voltage-divider accuracy under thermal drift.
Operation relies on three digital inputs-CS (chip select), U/D (direction), and INC (edge-triggered increment)-with CS HIGH enabling nonvolatile store when INC is also HIGH. The device powers into its last-stored wiper position, eliminating external initialization circuitry in systems requiring deterministic startup behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total Resistance (RTOTAL) | 10 kΩ ±20% - defines full-scale analog range and sets minimum load impedance for stable voltage division |
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct compatibility with 3.3V and 5V logic rails without level-shifting |
| Wiper Resistance | ≤400 Ω at 2.7V - limits voltage error in low-voltage bias networks and preserves resolution in high-gain feedback paths |
| Standby Current | <5 µA - supports battery-powered or energy-sensitive systems with infrequent trim updates |
| Resolution | 1% (100 taps) - provides 9.9 mV step size across 1V span, sufficient for fine gain/offset calibration |
| Nonvolatile Endurance | 100,000 data changes per bit - ensures >10-year service life in field-adjustable instrumentation with monthly recalibration |
| Temperature Range | -40°C to +85°C - qualified for industrial environments including motor drives and outdoor sensor nodes |
Pinout & Package
Package: 8-lead TSSOP (RoHS-compliant, JEDEC MO-153 AC, M8.173 drawing), 3.0 mm × 4.4 mm footprint, 1.2 mm max height, 0.65 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control signal; toggling moves wiper one tap in direction set by U/D |
| 2 (U/D) | Direction control input | Logic level determines wiper movement direction (HIGH = up, LOW = down) during INC transition |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher potential node in voltage divider configuration |
| 4 (VSS) | Ground reference | Return path for all internal logic and analog circuitry; must be low-impedance for noise immunity |
| 5 (RW) | Wiper output | Movable terminal delivering intermediate voltage; series resistance ≤400Ω affects loading in precision buffers |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower potential node (e.g., ground or negative rail) |
| 7 (CS) | Chip select | Active-low enable; HIGH initiates nonvolatile store if INC is also HIGH, then enters standby mode |
| 8 (VCC) | Power supply | 2.7–5.5V CMOS supply; powers logic, memory, and resistor array; decoupling capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear, contact bounce, and vibration sensitivity-critical for automotive and industrial control panels |
| Nonvolatile wiper position storage | Recalls last-trimmed setting at power-up, removing need for host MCU initialization or EEPROM coordination |
| 3-wire serial up/down interface | Requires only three GPIOs-no SPI/I²C peripheral needed-reducing MCU resource usage and PCB routing complexity |
| Temperature-compensated resistor array | ±20 ppm/°C ratiometric TC ensures stable voltage division across -40°C to +85°C, essential for sensor signal conditioning |
| Low-power CMOS design | Sub-5µA standby current extends battery life in portable test equipment and IoT edge nodes with periodic calibration |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
Use Scenario: Adjusting VCOM voltage in TFT-LCD column drivers to minimize image flicker and ghosting. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing precise DC offset to common electrode amplifier. Use Value: 100-tap resolution enables sub-mV tuning to match panel-specific gamma curves across temperature gradients. |
Use Scenario: Setting bias current for edge-emitting laser diodes in fiber-optic transceivers. IC Role / Device Role / Timing Role: Two-terminal variable resistor in the feedback path of a constant-current source. Use Value: Nonvolatile storage retains factory-set threshold current after hot-plug events, ensuring optical output stability. |
| Voltage Regulator Output Control | DC Bias Adjustment |
Use Scenario: Trimming output voltage of adjustable LDOs (e.g., TLV70xx) in power management ICs. IC Role / Device Role / Timing Role: Resistor divider element between feedback pin and ground in closed-loop regulation. Use Value: ±20% RTOTAL tolerance and ±20 ppm/°C ratiometric TC maintain ±1% output accuracy over full temperature range. |
Use Scenario: Calibrating input DC offset in instrumentation amplifiers used for strain gauge signal conditioning. IC Role / Device Role / Timing Role: Two-terminal variable resistor in op-amp summing junction to null sensor zero-point drift. Use Value: Low 400Ω wiper resistance minimizes injection error in high-Z feedback networks, preserving 16-bit ADC linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5170BRMZ-10 | I²C interface, 256-tap resolution, 10kΩ RTOTAL, 2.7–5.5V supply, but no nonvolatile store on power cycle | Requires host MCU to reload wiper position at boot; unsuitable for standalone power-cycle repeatability | Select when I²C bus availability outweighs need for autonomous power-up behavior |
| MCP41HV51-103E/SN | 100kΩ RTOTAL, SPI interface, 2.7–5.5V, nonvolatile store, but wiper resistance ≥1.5kΩ at 2.7V | Higher wiper resistance degrades accuracy in low-voltage, high-impedance feedback loops (e.g., <100kΩ gain-setting) | Select for SPI-based systems where higher RTOTAL matches existing resistor network scaling |
Compared with AD5170BRMZ-10 and MCP41HV51-103E/SN, the X9317WV8-2.7T1 uniquely delivers deterministic power-up behavior without host intervention, ultra-low wiper resistance for precision analog paths, and minimal GPIO count-making it optimal for cost-sensitive, self-contained trimming in industrial sensors and display subsystems.
Availability
X9317WV8-2.7T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias adjustment, voltage regulator output trimming, and DC offset calibration requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for X9317WV8-2.7T1 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 infrastructure markets.
The X9317 family was designed specifically for high-reliability analog trimming in harsh environments-emphasizing nonvolatile retention, wide supply range, and temperature-stable resistance matching for sensor interfaces and power systems.
FAQ
What is the guaranteed operating temperature range for the X9317WV8-2.7T1?
The X9317WV8-2.7T1 is specified for continuous operation from -40°C to +85°C, meeting industrial-grade environmental requirements. This range is confirmed in the Ordering Information table (Page 2) and applies to all electrical parameters unless otherwise noted. The device uses temperature-compensated resistor elements to maintain ratiometric stability within this span, making X9317WV8-2.7T1 suitable for deployment in motor controls, outdoor instrumentation, and factory automation systems.
Does the X9317WV8-2.7T1 require an external clock or serial bus controller?
No, the X9317WV8-2.7T1 operates with a simple 3-wire up/down interface (CS, U/D, INC) and requires no external clock source or serial protocol engine. All timing is derived from the INC signal's edge transitions, and internal logic handles wiper positioning and nonvolatile storage autonomously. This eliminates dependency on MCU peripherals like SPI or I²C, allowing direct GPIO control-reducing firmware overhead and simplifying X9317WV8-2.7T1 integration in resource-constrained designs.
How does the nonvolatile memory in the X9317WV8-2.7T1 retain wiper position during power loss?
The X9317WV8-2.7T1 stores the current wiper position in on-chip nonvolatile memory when CS transitions HIGH while INC is held HIGH-a dedicated store command. Once written, the value persists for 100 years (per datasheet page 5) and is automatically loaded to the wiper register on next power-up. No external backup power or host-initiated restore sequence is needed, ensuring X9317WV8-2.7T1 delivers repeatable analog settings across uncontrolled power cycles.
Can the X9317WV8-2.7T1 be used in a two-terminal variable resistor configuration?
Yes, the X9317WV8-2.2T1 supports two-terminal operation by connecting either RH or RL to RW and using the remaining fixed terminal with RW as the variable resistance node. Datasheet Figure 4 (page 9) explicitly illustrates this configuration for current control. In this mode, the effective resistance varies from near-zero (wiper at connected terminal) to RTOTAL (wiper at opposite terminal), with wiper resistance contributing directly to minimum on-resistance-verified at ≤400Ω at 2.7V per page 4 specifications.
What is the maximum allowable voltage across RH and RL terminals of the X9317WV8-2.7T1?
The absolute maximum voltage across RH and RL is limited to VCC – VSS, with VCC rated from 2.7V to 5.5V. Per Absolute Maximum Ratings (page 4), the voltage on RH or RL with respect to VSS must not exceed +6V. Exceeding this risks permanent damage to the internal resistor array or switches. For reliable operation, the RH–RL differential should remain within the supply rails-i.e., ≤5.5V-and bias networks must ensure neither terminal floats beyond VSS or VCC by more than 1V, as specified in the voltage-on-terminals rating.
X9317WV8-2.7T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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:
- 2.7V ~ 5.5V
- 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):
- 400
X9317WV8-2.7T1 FAQ
1.How can I place an order for X9317WV8-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WV8-2.7T1 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 X9317WV8-2.7T1 reliable?
The price and inventory of X9317WV8-2.7T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317WV8-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9317WV8-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WV8-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WV8-2.7T1?
X9317WV8-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WV8-2.7T1 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 X9317WV8-2.7T1?
For technical support, including X9317WV8-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WV8-2.7T1 requirements.
6.How does Aetrix verify that X9317WV8-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9317WV8-2.7T1 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 X9317WV8-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9317WV8-2.7T1?
All X9317WV8-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WV8-2.7T1, 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 X9317WV8-2.7T1 part is unused and in its original packaging.
Return procedure for X9317WV8-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WV8-2.7T1 Tags
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