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Renesas X9317WS8IZT1
- Part No.:
- X9317WS8IZT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9317WS8IZT1.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,942
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Product details
Overview
X9317WS8IZT1 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 industrial-grade environments (–40°C to +85°C), supporting end-to-end resistance of 10 kΩ and supply voltage from 4.5 V to 5.5 V.
For engineers reviewing the X9317WS8IZT1 datasheet, X9317WS8IZT1 pinout, X9317WS8IZT1 application, or X9317WS8IZT1 equivalent, key selection considerations include its ±1% absolute linearity, 200 Ω typical wiper resistance, low 5 µA standby current, RoHS-compliant SOIC-8 package, and nonvolatile recall on power-up-critical for bias control, gain trim, and regulator feedback stability.
Technical Context
The X9317WS8IZT1 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 100 discrete taps. Its resistor array uses temperature-compensated elements with ±300 ppm/°C total resistance TC and ±20 ppm/°C ratiometric TC, ensuring stable voltage division under thermal drift.
Control logic operates via CS (chip select), U/D (direction), and edge-triggered INC inputs. Wiper movement follows "make-before-break" switching, and nonvolatile store occurs only when CS rises high while INC is high-enabling deterministic initialization and field-adjustable calibration without external EEPROM.
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 applications |
| Wiper Tap Count | 100 positions - enables 1% resolution per step for fine-grained analog adjustment |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard 5 V logic and industrial power rails |
| Standby Current | <5 µA - minimizes quiescent power in battery-backed or always-on systems |
| Absolute Linearity | ±1 MI (Minimum Increment) - ensures ≤1% deviation from ideal voltage division across full range |
| Wiper Resistance | 200 Ω typical at 5 V - contributes predictable series impedance in signal path or feedback loop |
| Nonvolatile Retention | 100 years - guarantees wiper setting persistence across product lifetime without refresh |
| Operating Temperature | –40°C to +85°C - qualified for industrial ambient conditions without derating |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, surface-mount, 3.9 mm × 4.9 mm footprint.
| 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 determines wiper increment (+) or decrement (–) on each INC edge |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher-potential node in voltage divider |
| 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; delivers tapped voltage or adjustable resistance between RH and RL |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower-potential node (e.g., ground or feedback node) |
| 7 (CS) | Chip select | Active-low enable; rising edge with INC = HIGH initiates nonvolatile store operation |
| 8 (VCC) | Supply voltage | Power rail (4.5–5.5 V); powers internal logic, memory, and resistor array biasing |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, enabling 100,000 data changes per bit and >100-year data retention |
| 3-wire serial interface | Requires only CS, U/D, and INC signals-no clock or data lines-reducing MCU GPIO count and PCB routing complexity |
| Nonvolatile wiper recall | Automatically restores last stored position at power-up, ensuring repeatable startup behavior without host initialization |
| Temperature-compensated array | ±20 ppm/°C ratiometric TC maintains stable voltage division ratio across –40°C to +85°C |
| Low-noise performance | –120 dBV noise floor (1 kHz ref.) supports precision analog circuits like laser diode bias and ADC reference trimming |
| Make-before-break switching | Prevents open-circuit transients during wiper movement-critical for stable feedback loops in regulators and amplifiers |
Applications
| LCD Bias Control | Laser Diode Bias Control |
|---|---|
|
Use Scenario: Adjusting VCOM or gamma voltage in TFT-LCD panels to maintain contrast and grayscale fidelity across temperature. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing programmable DC bias voltage referenced to panel common mode. Use Value: Enables factory calibration and dynamic compensation using the same 10 kΩ, ±1% linearity spec verified over –40°C to +85°C. |
Use Scenario: Setting precise forward current for laser diodes in optical transceivers or sensing modules. IC Role / Device Role / Timing Role: Two-terminal variable resistor in the cathode path of constant-current laser driver ICs. Use Value: Delivers 200 Ω wiper resistance and <5 µA standby draw-minimizing offset error and power loss in milliamp-level bias paths. |
| Voltage Regulator Output Trim | DC Offset Adjustment |
|
Use Scenario: Fine-tuning output voltage of adjustable LDOs or switching regulators via feedback divider ratio. IC Role / Device Role / Timing Role: Replaces mechanical trimpot in Rupper/Rlower feedback network; wiper serves as adjustable node. Use Value: Nonvolatile recall ensures consistent output voltage after power cycling-eliminating need for host re-trim at boot. |
Use Scenario: Nulling input offset voltage in instrumentation amplifiers or op-amp-based sensor interfaces. IC Role / Device Role / Timing Role: Two-terminal resistor in offset null circuit (e.g., LM358 pin 1–5), adjusted during production test. Use Value: 100-tap resolution and ±1 MI linearity allow sub-millivolt offset correction accuracy in precision analog front-ends. |
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, ±30% RTOTAL tolerance | Lacks nonvolatile recall; requires external MCU to reload setting on power-up | Choose when I²C bus availability and lower cost outweigh need for autonomous power-up behavior |
| MCP41HV51-103 | 10-bit SPI interface, 100 kΩ RTOTAL, 2.7–5.5 V supply, ±20% tolerance | Higher end-to-end resistance limits current-handling capability in low-impedance feedback paths | Prefer for high-voltage (up to 36 V) wiper operation where X9317WS8IZT1's 6 V absolute max is insufficient |
Compared with AD5171BRMZ-10 and MCP41HV51-103, the X9317WS8IZT1 uniquely combines 100-tap resolution, nonvolatile recall, 10 kΩ value, and 3-wire simplicity-making it optimal for industrial systems requiring deterministic analog startup without firmware dependency or high-voltage wiper swing.
Availability
X9317WS8IZT1 is available at Aetrix Electronics and suitable for LCD bias control, voltage regulator output control, and laser diode bias applications requiring stable component supply, long-term obsolescence management, and guaranteed RoHS-compliant sourcing.
Supply support for X9317WS8IZT1 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 X9317WS8IZT1 belongs to Renesas' XDCP™ (eXternally Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical trimmers in high-reliability analog trimming applications where long-term stability, nonvolatility, and thermal robustness are essential.
FAQ
What is the operating temperature range for the X9317WS8IZT1?
The X9317WS8IZT1 is rated for industrial operation from –40°C to +85°C. This range is fully characterized for all key parameters-including end-to-end resistance tolerance, linearity, and nonvolatile store timing-and applies to the SOIC-8 package variant specified in the ordering code. No derating is required within this span.
Does the X9317WS8IZT1 require an external clock or data line for communication?
No. The X9317WS8IZT1 uses a 3-wire up/down interface with only CS, U/D, and INC pins-no clock or bidirectional data line is needed. This simplifies host connection to any microcontroller GPIO, eliminates timing setup for serial protocols, and reduces PCB routing overhead compared to I²C or SPI digital potentiometers.
How is the wiper position stored and recalled in the X9317WS8IZT1?
The X9317WS8IZT1 stores the current wiper position in nonvolatile memory when CS transitions from LOW to HIGH while INC is held HIGH. On subsequent power-up, the device automatically recalls that stored value and positions the wiper accordingly-requiring no host intervention or initialization sequence.
What is the maximum wiper current rating for the X9317WS8IZT1?
The X9317WS8IZT1 supports a maximum wiper current (IW) of ±4.4 mA, measured with RH and RL biased at VCC and ground respectively. Exceeding this limit risks increased wiper resistance drift or accelerated wear; design margin should be maintained, especially in feedback networks with high loop gain.
Can the X9317WS8IZT1 be used in a two-terminal variable resistor configuration?
Yes. The X9317WS8IZT1 supports two-terminal operation by connecting either RH or RL to RW (wiper), leaving the unused terminal open or grounded depending on circuit topology. In this mode, it functions as a digitally adjustable resistor with 100-step resolution and 10 kΩ nominal value-ideal for gain-setting or current-limiting applications.
X9317WS8IZT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 200
X9317WS8IZT1 FAQ
1.How can I place an order for X9317WS8IZT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317WS8IZT1 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 X9317WS8IZT1 reliable?
The price and inventory of X9317WS8IZT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317WS8IZT1 is usually 5 days.
3.What payment methods are accepted for X9317WS8IZT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317WS8IZT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317WS8IZT1?
X9317WS8IZT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317WS8IZT1 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 X9317WS8IZT1?
For technical support, including X9317WS8IZT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317WS8IZT1 requirements.
6.How does Aetrix verify that X9317WS8IZT1 is sourced from the original manufacturer or authorized distributors?
All X9317WS8IZT1 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 X9317WS8IZT1 meets industry standards.
7.What is the process for return or replacement of X9317WS8IZT1?
All X9317WS8IZT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317WS8IZT1, 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 X9317WS8IZT1 part is unused and in its original packaging.
Return procedure for X9317WS8IZT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9317WS8IZT1 Tags
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