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Renesas X9317WV8IZ-2.7T1
- Part No.:
- X9317WV8IZ-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9317WV8IZ-2.7T1.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,791
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Product details
Overview
X9317WV8IZ-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 (±20% tolerance), 400Ω max wiper resistance at 2.7V, and <5µA standby current. It serves as a three-terminal voltage divider or two-terminal variable resistor in precision analog trimming applications.
For engineers reviewing the X9317WV8IZ-2.7T1 datasheet, X9317WV8IZ-2.7T1 pinout, X9317WV8IZ-2.7T1 application, or X9317WV8IZ-2.7T1 equivalent, key selection criteria include its industrial-grade -40°C to +85°C operating range, TSSOP-8 RoHS-compliant package, 3-wire up/down interface timing (tCYC = 2µs), and ratiometric temperature coefficient of ±20 ppm/°C for stable gain/offset control.
Technical Context
The X9317WV8IZ-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 glitch-free transitions during tap changes, while the stored wiper value is automatically recalled on power-up.
It operates via a 3-wire serial interface (CS, U/D, INC) with negative-edge-triggered INC and direction-controlled U/D logic. The device supports both volatile adjustment and nonvolatile store operations-store occurs only when CS rises while INC is HIGH, enabling deterministic configuration retention without unintended writes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end Resistance | 10kΩ ±20% - defines full-scale analog range and load interaction in voltage divider or current-limiting configurations |
| Supply Voltage Range | 2.7V to 5.5V - enables direct compatibility with 3.3V and 5V systems without level-shifting |
| Wiper Resistance | ≤1000Ω at 2.7V - limits voltage error and thermal drift in low-voltage precision bias networks |
| Standby Current | <5µA - supports ultra-low-power operation in battery-backed or energy-constrained systems |
| Resolution | 1% (100 taps) - provides fine-grained analog tuning resolution for laser diode bias or LCD gamma correction |
| Ratiometric Tempco | ±20 ppm/°C - ensures stable voltage division ratio over temperature, critical for offset trim in instrumentation amplifiers |
| Nonvolatile Endurance | 100,000 write cycles - guarantees long-term reliability in field-adjustable calibration systems |
| Data Retention | 100 years - maintains factory or field-set trim values across product lifetime without refresh |
Pinout & Package
Package: 8-lead TSSOP (RoHS-compliant, JEDEC MO-153 AC, M8.173 drawing), 3.0mm × 4.4mm footprint, 0.65mm pitch, 1.20mm max height.
| 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; tCYC = 2µs minimum cycle time |
| 2 (U/D) | Direction control input | Logic level sets wiper movement direction during INC transition; may be changed dynamically while CS is LOW |
| 3 (RH) | High terminal | Fixed end of resistor array; connected to VCC or reference voltage in voltage divider mode |
| 4 (VSS) | Ground reference | Return path for all internal circuitry and external analog signals; must be low-impedance for noise immunity |
| 5 (RW) | Wiper output | Movable terminal; series resistance ≤1000Ω at 2.7V affects accuracy in high-gain feedback paths |
| 6 (RL) | Low terminal | Fixed end of resistor array; tied to ground or bias node in two-terminal current-control applications |
| 7 (CS) | Chip select | Active-LOW enable; rising edge with INC HIGH initiates nonvolatile store; deassertion places device in standby (<5µA) |
| 8 (VCC) | Power supply | 2.7V–5.5V operation; requires local 0.1µF decoupling; ramp rate 0.2–50 V/ms to prevent spurious writes |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Automatically recalls last stored position on power-up-eliminates need for host MCU initialization sequence |
| Temperature-compensated array | ±300 ppm/°C absolute RTOTAL tempco and ±20 ppm/°C ratiometric tempco ensure stable division ratio across -40°C to +85°C |
| Make-before-break switching | Prevents open-circuit glitches during wiper transitions-critical for maintaining loop stability in regulator feedback paths |
| Low-noise performance | -120 dBV noise (1kHz ref) enables use in sensitive audio and sensor signal conditioning without added filtering |
| Industrial temperature grade | -40°C to +85°C operation validated per datasheet-supports deployment in automotive cabin, industrial PLC, and outdoor equipment |
| Pb-free / RoHS compliance | Matte tin e3 termination compatible with SnPb and Pb-free reflow profiles-meets IPC/JEDEC J-STD-020 MSL3 requirements |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
Use Scenario: Adjusting VCOM or gamma voltage in TFT-LCD panels to correct grayscale uniformity and viewing angle response. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing programmable DC bias voltage referenced to VCC and VSS. Use Value: 100-tap resolution enables pixel-level gamma curve tuning; nonvolatile storage retains panel-specific calibration across power cycles. | Use Scenario: Setting precise bias current for edge-emitting laser diodes in fiber-optic transceivers or optical sensors. IC Role / Device Role / Timing Role: Two-terminal variable resistor in series with laser cathode to regulate forward current. Use Value: ±20 ppm/°C ratiometric tempco minimizes current drift over temperature; 100k endurance supports field recalibration during service life. |
| Voltage Regulator Output Control | Gain and Offset Trim |
Use Scenario: Dynamically adjusting output voltage of adjustable LDOs or switching regulators via feedback divider ratio. IC Role / Device Role / Timing Role: Upper leg of resistor divider network between VOUT and ADJ/FB pin; RW connects to FB node. Use Value: Low wiper resistance (≤1000Ω @ 2.7V) prevents loading errors in high-gain feedback loops; 2.7V min VCC allows direct use with low-dropout regulators. | Use Scenario: Calibrating zero-point and span in precision instrumentation amplifiers or ADC front-ends. IC Role / Device Role / Timing Role: Two-terminal resistor in offset null or gain-setting network of op-amp circuits (e.g., INA128, AD8421). Use Value: Absolute linearity ±1 MI ensures sub-0.5% total error in 12-bit systems; nonvolatile storage preserves factory calibration without EEPROM overhead. |
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, 10kΩ, 2.7–5.5V, 5ppm/°C ratiometric tempco | Requires I²C master; lower resolution but superior tempco; no volatile-only mode | Preferred for systems already using I²C infrastructure and requiring tighter ratio stability |
| MCP41HV51-103 | SPI interface, 257 taps, 10kΩ, 4.5–20V supply, 100ppm/°C ratiometric tempco | Supports higher voltage rails; wider tempco reduces precision in wide-temperature apps | Chosen when operating above 5.5V or needing finer resolution in high-voltage bias control |
Compared with AD5171BRMZ-10 and MCP41HV51-103, the X9317WV8IZ-2.7T1 offers deterministic 3-wire timing control, guaranteed make-before-break switching, and lower power consumption (<5µA vs. >10µA standby), making it optimal for low-energy, timing-critical analog trim in industrial and embedded systems.
Availability
X9317WV8IZ-2.7T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias control, and voltage regulator output control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for X9317WV8IZ-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 delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and enterprise applications.
The X9317 series belongs to Renesas' XDCP™ (eXternally Digitally Controlled Potentiometer) product line, engineered specifically for replacing mechanical potentiometers in precision analog trimming where nonvolatile setting retention, temperature stability, and low-power operation are essential.
FAQ
What is the operating temperature range for the X9317WV8IZ-2.7T1?
The X9317WV8IZ-2.7T1 is rated for industrial operation from -40°C to +85°C, as confirmed in the Ordering Information table (Page 2) and validated across all electrical specifications. This range applies to all parameters including end-to-end resistance tolerance, wiper resistance, and nonvolatile memory endurance. The "I" suffix in the part number explicitly denotes the industrial temperature grade, distinguishing it from commercial-grade variants (0°C to +70°C).
Does the X9317WV8IZ-2.7T1 require an external power-on reset circuit?
No, the X9317WV8IZ-2.7T1 does not require an external power-on reset circuit. Upon power-up, it automatically recalls the last stored wiper position from nonvolatile memory within 5µs (tPU specification, Page 6). However, the datasheet recommends bringing CS and INC HIGH before or concurrently with VCC to prevent unintended wiper movement or accidental store operations during ramp-up.
Can the X9317WV8IZ-2.7T1 be used in a two-terminal variable resistor configuration?
Yes, the X9317WV8IZ-2.7T1 can be configured as a two-terminal variable resistor by connecting either RH or RL to RW and using the remaining terminal plus RW as the adjustable element. This is explicitly supported in the Applications section (Page 1) and Figure 4 (Page 9). In this mode, the device controls current flow with 100-step resolution, and the 10kΩ end-to-end resistance defines the maximum resistance range.
What is the maximum wiper current rating for the X9317WV8IZ-2.7T1 at 2.7V supply?
At 2.7V supply, the X9317WV8IZ-2.7T1 supports a maximum wiper current (IW) of ±4.4mA, as specified in the Potentiometer Specifications table (Page 4). This limit applies regardless of wiper position and is independent of supply voltage. Exceeding this current risks exceeding the 10mW power rating for the 10kΩ version and may accelerate wear in nonvolatile memory during frequent adjustments.
How is nonvolatile storage triggered on the X9317WV8IZ-2.7T1?
Nonvolatile storage on the X9317WV8IZ-2.7T1 is triggered by a rising edge on the CS pin while the INC pin is held HIGH (see Mode Selection table, Page 8). This single-event condition initiates a 5–10ms store cycle (tWR, Page 6), after which the device enters standby mode. No additional commands or timing sequences are required-the action is edge-sensitive and self-terminating.
X9317WV8IZ-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:
- 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:
- 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:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9317WV8IZ-2.7T1 FAQ
1.How can I place an order for X9317WV8IZ-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WV8IZ-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 X9317WV8IZ-2.7T1 reliable?
The price and inventory of X9317WV8IZ-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 X9317WV8IZ-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9317WV8IZ-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WV8IZ-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WV8IZ-2.7T1?
X9317WV8IZ-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WV8IZ-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 X9317WV8IZ-2.7T1?
For technical support, including X9317WV8IZ-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WV8IZ-2.7T1 requirements.
6.How does Aetrix verify that X9317WV8IZ-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9317WV8IZ-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 X9317WV8IZ-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9317WV8IZ-2.7T1?
All X9317WV8IZ-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WV8IZ-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 X9317WV8IZ-2.7T1 part is unused and in its original packaging.
Return procedure for X9317WV8IZ-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WV8IZ-2.7T1 Tags
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